loplugin:cstylecast: deal with remaining pointer casts

Change-Id: I07bf1403e6b992807541a499b786d47f835b2f81

70 files changed, 270 insertions, 270 deletions

diff --git a/vcl/generic/fontmanager/parseAFM.cxx b/vcl/generic/fontmanager/parseAFM.cxx
index e6427389f191..82cb46f3f6a3 100644
--- a/vcl/generic/fontmanager/parseAFM.cxx
+++ b/vcl/generic/fontmanager/parseAFM.cxx
@@ -267,7 +267,7 @@ static char *token( FileInputStream* stream, int& rLen )
         ch = stream->getChar();
     }
 
-    if (ch == -1 && idx < 1) return ((char *)NULL);
+    if (ch == -1 && idx < 1) return (nullptr);
     if (idx >= 1 && ch != ':' && ch != -1) stream->ungetChar();
     if (idx < 1 ) ident[idx++] = ch;    /* single-character token */
     ident[idx] = 0;
diff --git a/vcl/generic/glyphs/gcach_ftyp.cxx b/vcl/generic/glyphs/gcach_ftyp.cxx
index d6a2116321f8..5688aac71867 100644
--- a/vcl/generic/glyphs/gcach_ftyp.cxx
+++ b/vcl/generic/glyphs/gcach_ftyp.cxx
@@ -1581,7 +1581,7 @@ bool ServerFont::GetGlyphOutline( sal_GlyphId aGlyphId,
     aFuncs.cubic_to = &FT_cubic_to;
     aFuncs.shift    = 0;
     aFuncs.delta    = 0;
-    rc = FT_Outline_Decompose( &rOutline, &aFuncs, (void*)&aPolyArg );
+    rc = FT_Outline_Decompose( &rOutline, &aFuncs, static_cast<void*>(&aPolyArg) );
     aPolyArg.ClosePolygon();    // close last polygon
     FT_Done_Glyph( pGlyphFT );
 
diff --git a/vcl/generic/glyphs/gcach_layout.cxx b/vcl/generic/glyphs/gcach_layout.cxx
index 8d1c6f543d01..43550f2d4b15 100644
--- a/vcl/generic/glyphs/gcach_layout.cxx
+++ b/vcl/generic/glyphs/gcach_layout.cxx
@@ -135,7 +135,7 @@ static hb_blob_t *getFontTable(hb_face_t* /*face*/, hb_tag_t nTableTag, void* pU
 
     hb_blob_t* pBlob = NULL;
     if (pBuffer != NULL)
-        pBlob = hb_blob_create(reinterpret_cast<const char*>(pBuffer), nLength, HB_MEMORY_MODE_READONLY, (void*) pBuffer, NULL);
+        pBlob = hb_blob_create(reinterpret_cast<const char*>(pBuffer), nLength, HB_MEMORY_MODE_READONLY, const_cast<unsigned char *>(pBuffer), NULL);
 
     return pBlob;
 }
diff --git a/vcl/generic/glyphs/scrptrun.h b/vcl/generic/glyphs/scrptrun.h
index 625ca7b63215..4b44b6ba6b71 100644
--- a/vcl/generic/glyphs/scrptrun.h
+++ b/vcl/generic/glyphs/scrptrun.h
@@ -88,7 +88,7 @@ public:
     UBool next();
 
     /**
-     * ICU "poor man's RTTI", returns a UClassID for the actual class.
+s     * ICU "poor man's RTTI", returns a UClassID for the actual class.
      *
      * @stable ICU 2.2
      */
@@ -99,7 +99,7 @@ public:
      *
      * @stable ICU 2.2
      */
-    static inline UClassID getStaticClassID() { return (UClassID)&fgClassID; }
+    static inline UClassID getStaticClassID() { return static_cast<UClassID>(const_cast<char *>(&fgClassID)); }
 
 private:
 
diff --git a/vcl/generic/print/prtsetup.cxx b/vcl/generic/print/prtsetup.cxx
index 9d74f048ae3a..e024f08fd13e 100644
--- a/vcl/generic/print/prtsetup.cxx
+++ b/vcl/generic/print/prtsetup.cxx
@@ -45,22 +45,22 @@ void RTSDialog::insertAllPPDValues( ListBox& rBox, const PPDParser* pParser, con
 
         if( m_aJobData.m_aContext.checkConstraints( pKey, pValue ) )
         {
-            if( rBox.GetEntryPos( (void*)pValue ) == LISTBOX_ENTRY_NOTFOUND )
+            if( rBox.GetEntryPos( static_cast<void const *>(pValue) ) == LISTBOX_ENTRY_NOTFOUND )
             {
                 nPos = rBox.InsertEntry( aOptionText, LISTBOX_APPEND );
-                    rBox.SetEntryData( nPos, (void*)pValue );
+                    rBox.SetEntryData( nPos, const_cast<PPDValue *>(pValue) );
             }
         }
         else
         {
-            if( ( nPos = rBox.GetEntryPos( (void*)pValue ) ) != LISTBOX_ENTRY_NOTFOUND )
+            if( ( nPos = rBox.GetEntryPos( static_cast<void const *>(pValue) ) ) != LISTBOX_ENTRY_NOTFOUND )
                 rBox.RemoveEntry( nPos );
         }
     }
     pValue = m_aJobData.m_aContext.getValue( pKey );
     if (pValue && !pValue->m_bCustomOption)
     {
-        if( ( nPos = rBox.GetEntryPos( (void*)pValue ) ) != LISTBOX_ENTRY_NOTFOUND )
+        if( ( nPos = rBox.GetEntryPos( static_cast<void const *>(pValue) ) ) != LISTBOX_ENTRY_NOTFOUND )
             rBox.SelectEntryPos( nPos );
     }
     else
@@ -370,7 +370,7 @@ RTSDevicePage::RTSDevicePage( RTSDialog* pParent )
             {
                 OUString aEntry( m_pParent->m_aJobData.m_pParser->translateKey( pKey->getKey() ) );
                 sal_uInt16 nPos = m_pPPDKeyBox->InsertEntry( aEntry );
-                m_pPPDKeyBox->SetEntryData( nPos, (void*)pKey );
+                m_pPPDKeyBox->SetEntryData( nPos, const_cast<PPDKey *>(pKey) );
             }
         }
     }
@@ -485,11 +485,11 @@ void RTSDevicePage::FillValueBox( const PPDKey* pKey )
             else
                 aEntry = OUString(m_pParent->m_aJobData.m_pParser->translateOption( pKey->getKey(), pValue->m_aOption));
             sal_uInt16 nPos = m_pPPDValueBox->InsertEntry( aEntry );
-            m_pPPDValueBox->SetEntryData( nPos, (void*)pValue );
+            m_pPPDValueBox->SetEntryData( nPos, const_cast<PPDValue *>(pValue) );
         }
     }
     pValue = m_pParent->m_aJobData.m_aContext.getValue( pKey );
-    m_pPPDValueBox->SelectEntryPos( m_pPPDValueBox->GetEntryPos( (void*)pValue ) );
+    m_pPPDValueBox->SelectEntryPos( m_pPPDValueBox->GetEntryPos( static_cast<void const *>(pValue) ) );
     if (pValue->m_bCustomOption)
     {
         m_pCustomValue = pValue;
diff --git a/vcl/generic/print/text_gfx.cxx b/vcl/generic/print/text_gfx.cxx
index a30a2b3d621a..6b4e10f6d88f 100644
--- a/vcl/generic/print/text_gfx.cxx
+++ b/vcl/generic/print/text_gfx.cxx
@@ -701,7 +701,7 @@ PrinterGfx::writeResources( osl::File* pFile, std::list< OString >& rSuppliedFon
             if (pFile->setPos(osl_Pos_Current, -1) == osl::FileBase::E_None)
             {
                 sal_uInt64 uBytes(1);
-                pFile->read((void *)(&lastchar), uBytes, uBytes);
+                pFile->read(static_cast<void *>(&lastchar), uBytes, uBytes);
             }
 
             if (lastchar != '\n')
diff --git a/vcl/headless/svpdummies.cxx b/vcl/headless/svpdummies.cxx
index b5e033a127ea..ab151d725497 100644
--- a/vcl/headless/svpdummies.cxx
+++ b/vcl/headless/svpdummies.cxx
@@ -26,7 +26,7 @@
 SvpSalObject::SvpSalObject()
 {
     // fast and easy cross-platform wiping of the data
-    memset( (void *)&m_aSystemChildData, 0, sizeof( SystemEnvData ) );
+    memset( static_cast<void *>(&m_aSystemChildData), 0, sizeof( SystemEnvData ) );
     m_aSystemChildData.nSize = sizeof( SystemEnvData );
 }
 
diff --git a/vcl/headless/svpframe.cxx b/vcl/headless/svpframe.cxx
index 362a91cbb8f6..459a71070bb3 100644
--- a/vcl/headless/svpframe.cxx
+++ b/vcl/headless/svpframe.cxx
@@ -88,7 +88,7 @@ SvpSalFrame::SvpSalFrame( SvpSalInstance* pInstance,
 {
     // SAL_DEBUG("SvpSalFrame::SvpSalFrame: " << this);
     // fast and easy cross-platform wiping of the data
-    memset( (void *)&m_aSystemChildData, 0, sizeof( SystemEnvData ) );
+    memset( static_cast<void *>(&m_aSystemChildData), 0, sizeof( SystemEnvData ) );
     m_aSystemChildData.nSize        = sizeof( SystemEnvData );
 #ifdef IOS
     // Nothing
diff --git a/vcl/osx/PictToBmpFlt.cxx b/vcl/osx/PictToBmpFlt.cxx
index 77c67a654107..5300c9905569 100644
--- a/vcl/osx/PictToBmpFlt.cxx
+++ b/vcl/osx/PictToBmpFlt.cxx
@@ -32,7 +32,7 @@ bool ImageToPNG( com::sun::star::uno::Sequence<sal_Int8>& rImgData,
 {
     (void) eInFormat; // Really not needed? Weird.
 
-    NSData* pData = [NSData dataWithBytesNoCopy: (void*)rImgData.getConstArray() length: rImgData.getLength() freeWhenDone: 0];
+    NSData* pData = [NSData dataWithBytesNoCopy: const_cast<sal_Int8 *>(rImgData.getConstArray()) length: rImgData.getLength() freeWhenDone: 0];
     if( !pData)
         return false;
 
diff --git a/vcl/osx/a11ywrapper.mm b/vcl/osx/a11ywrapper.mm
index c50f4c1dd5cb..a90f917f3813 100644
--- a/vcl/osx/a11ywrapper.mm
+++ b/vcl/osx/a11ywrapper.mm
@@ -149,7 +149,7 @@ static std::ostream &operator<<(std::ostream &s, NSObject *obj) {
 // (getter with parameter)    attributeNameHereAttributeForParameter:
 // (setter)                   setAttributeNameHereAttributeForElement:to:
 -(SEL)selectorForAttribute:(NSString *)attribute asGetter:(BOOL)asGetter withGetterParameter:(BOOL)withGetterParameter {
-    SEL selector = (SEL)nil;
+    SEL selector = static_cast<SEL>(nil);
     NSAutoreleasePool * pool = [ [ NSAutoreleasePool alloc ] init ];
     @try {
         // step 1: create method name from attribute name
@@ -175,7 +175,7 @@ static std::ostream &operator<<(std::ostream &s, NSObject *obj) {
         // step 2: create selector
         selector = NSSelectorFromString ( methodName );
     } @catch ( id exception ) {
-        selector = (SEL)nil;
+        selector = static_cast<SEL>(nil);
     }
     [ pool release ];
     return selector;
diff --git a/vcl/osx/salframeview.mm b/vcl/osx/salframeview.mm
index 8036a0f11f9e..1e15ee2bf87c 100644
--- a/vcl/osx/salframeview.mm
+++ b/vcl/osx/salframeview.mm
@@ -1639,13 +1639,13 @@ private:
         aInputEvent.maText = aInsertString;
         aInputEvent.mnCursorPos = selRange.location;
         aInputEvent.mpTextAttr = &aInputFlags[0];
-        mpFrame->CallCallback( SALEVENT_EXTTEXTINPUT, (void *)&aInputEvent );
+        mpFrame->CallCallback( SALEVENT_EXTTEXTINPUT, static_cast<void *>(&aInputEvent) );
     } else {
         aInputEvent.maText.clear();
         aInputEvent.mnCursorPos = 0;
         aInputEvent.mnCursorFlags = 0;
         aInputEvent.mpTextAttr = 0;
-        mpFrame->CallCallback( SALEVENT_EXTTEXTINPUT, (void *)&aInputEvent );
+        mpFrame->CallCallback( SALEVENT_EXTTEXTINPUT, static_cast<void *>(&aInputEvent) );
         mpFrame->CallCallback( SALEVENT_ENDEXTTEXTINPUT, 0 );
     }
     mbKeyHandled= true;
@@ -1712,7 +1712,7 @@ private:
     YIELD_GUARD;
 
     SalExtTextInputPosEvent aPosEvent;
-    mpFrame->CallCallback( SALEVENT_EXTTEXTINPUTPOS, (void *)&aPosEvent );
+    mpFrame->CallCallback( SALEVENT_EXTTEXTINPUTPOS, static_cast<void *>(&aPosEvent) );
 
     NSRect rect;
 
diff --git a/vcl/osx/salinst.cxx b/vcl/osx/salinst.cxx
index 2d8f5c53f59a..0d6c710f46ca 100644
--- a/vcl/osx/salinst.cxx
+++ b/vcl/osx/salinst.cxx
@@ -884,7 +884,7 @@ void* AquaSalInstance::GetConnectionIdentifier( ConnectionIdentifierType& rRetur
 {
     rReturnedBytes  = 1;
     rReturnedType   = AsciiCString;
-    return (void*)"";
+    return const_cast<char *>("");
 }
 
 // We need to re-encode file urls because osl_getFileURLFromSystemPath converts
diff --git a/vcl/qa/cppunit/complextext.cxx b/vcl/qa/cppunit/complextext.cxx
index e200ad2903ec..ae778fee40d5 100644
--- a/vcl/qa/cppunit/complextext.cxx
+++ b/vcl/qa/cppunit/complextext.cxx
@@ -43,7 +43,7 @@ void VclComplexTextTest::testArabic()
     OUString aOneTwoThree( reinterpret_cast<char const *>(pOneTwoThreeUTF8),
                            SAL_N_ELEMENTS( pOneTwoThreeUTF8 ) - 1,
                            RTL_TEXTENCODING_UTF8 );
-    VclPtr<vcl::Window> pWin = VclPtr<WorkWindow>::Create( (vcl::Window *)nullptr );
+    VclPtr<vcl::Window> pWin = VclPtr<WorkWindow>::Create( static_cast<vcl::Window *>(nullptr) );
     CPPUNIT_ASSERT( pWin );
 
     OutputDevice *pOutDev = static_cast< OutputDevice * >( pWin.get() );
diff --git a/vcl/quartz/ctfonts.cxx b/vcl/quartz/ctfonts.cxx
index 607fbd9f62c8..274da6bfdc2e 100644
--- a/vcl/quartz/ctfonts.cxx
+++ b/vcl/quartz/ctfonts.cxx
@@ -208,7 +208,7 @@ bool CoreTextStyle::GetGlyphOutline( sal_GlyphId aGlyphId, basegfx::B2DPolyPolyg
 
     GgoData aGgoData;
     aGgoData.mpPolyPoly = &rResult;
-    CGPathApply( xPath, (void*)&aGgoData, MyCGPathApplierFunc );
+    CGPathApply( xPath, static_cast<void*>(&aGgoData), MyCGPathApplierFunc );
 #if 0 // TODO: does OSX ensure that the last polygon is always closed?
     const CGPathElement aClosingElement = { kCGPathElementCloseSubpath, NULL };
     MyCGPathApplierFunc( (void*)&aGgoData, &aClosingElement );
diff --git a/vcl/quartz/salbmp.cxx b/vcl/quartz/salbmp.cxx
index 4ee39d3ff630..a2d43649f2f1 100644
--- a/vcl/quartz/salbmp.cxx
+++ b/vcl/quartz/salbmp.cxx
@@ -960,7 +960,7 @@ bool QuartzSalBitmap::GetSystemData( BitmapSystemData& rData )
             mxGraphicContext = mxGraphicContextNew;
         }
 
-        rData.rImageContext = (void *) mxGraphicContext;
+        rData.rImageContext = static_cast<void *>(mxGraphicContext);
         rData.mnWidth = mnWidth;
         rData.mnHeight = mnHeight;
     }
diff --git a/vcl/quartz/salgdi.cxx b/vcl/quartz/salgdi.cxx
index 52cf48acf816..6a1b18af04c6 100644
--- a/vcl/quartz/salgdi.cxx
+++ b/vcl/quartz/salgdi.cxx
@@ -676,7 +676,7 @@ void AquaSalGraphics::GetGlyphWidths( const PhysicalFontFace* pFontData, bool bV
 
         // use the font subsetter to get the widths
         TrueTypeFont* pSftFont = NULL;
-        int nRC = ::OpenTTFontBuffer( (void*)&aBuffer[0], aBuffer.size(), 0, &pSftFont);
+        int nRC = ::OpenTTFontBuffer( static_cast<void*>(&aBuffer[0]), aBuffer.size(), 0, &pSftFont);
         if( nRC != SF_OK )
             return;
 
@@ -694,7 +694,7 @@ void AquaSalGraphics::GetGlyphWidths( const PhysicalFontFace* pFontData, bool bV
             {
                 for( int i = 0; i < nGlyphCount; ++i )
                     rGlyphWidths[i] = pGlyphMetrics[i].adv;
-                free( (void*)pGlyphMetrics );
+                free( const_cast<TTSimpleGlyphMetrics *>(pGlyphMetrics) );
             }
 
             FontCharMapPtr pMap = mpFontData->GetFontCharMap();
diff --git a/vcl/quartz/salgdicommon.cxx b/vcl/quartz/salgdicommon.cxx
index 1464f18ce323..30f8086da031 100644
--- a/vcl/quartz/salgdicommon.cxx
+++ b/vcl/quartz/salgdicommon.cxx
@@ -226,7 +226,7 @@ bool AquaSalGraphics::CreateFontSubset( const OUString& rToFile,
 
     // prepare data for psprint's font subsetter
     TrueTypeFont* pSftFont = NULL;
-    int nRC = ::OpenTTFontBuffer( (void*)&aBuffer[0], aBuffer.size(), 0, &pSftFont);
+    int nRC = ::OpenTTFontBuffer( static_cast<void*>(&aBuffer[0]), aBuffer.size(), 0, &pSftFont);
     if( nRC != SF_OK )
         return false;
 
diff --git a/vcl/source/app/dndhelp.cxx b/vcl/source/app/dndhelp.cxx
index bba7452ca2ee..82961c2d154b 100644
--- a/vcl/source/app/dndhelp.cxx
+++ b/vcl/source/app/dndhelp.cxx
@@ -74,7 +74,7 @@ vcl::unohelper::DragAndDropWrapper::~DragAndDropWrapper()
 uno::Any vcl::unohelper::DragAndDropWrapper::queryInterface( const uno::Type & rType ) throw(uno::RuntimeException, std::exception)
 {
     uno::Any aRet = ::cppu::queryInterface( rType,
-                            (static_cast< ::com::sun::star::lang::XEventListener* >( (::com::sun::star::datatransfer::dnd::XDragGestureListener*)this) ),
+                            (static_cast< ::com::sun::star::lang::XEventListener* >( static_cast<com::sun::star::datatransfer::dnd::XDragGestureListener*>(this)) ),
                             (static_cast< ::com::sun::star::datatransfer::dnd::XDragGestureListener* >(this)),
                             (static_cast< ::com::sun::star::datatransfer::dnd::XDragSourceListener* >(this)),
                             (static_cast< ::com::sun::star::datatransfer::dnd::XDropTargetListener* >(this)) );
diff --git a/vcl/source/app/svapp.cxx b/vcl/source/app/svapp.cxx
index 97621a5b1c87..536e81b7d229 100644
--- a/vcl/source/app/svapp.cxx
+++ b/vcl/source/app/svapp.cxx
@@ -675,7 +675,7 @@ void Application::RemoveKeyListener( const Link<>& rKeyListener )
 bool Application::HandleKey( sal_uLong nEvent, vcl::Window *pWin, KeyEvent* pKeyEvent )
 {
     // let listeners process the key event
-    VclWindowEvent aEvent( pWin, nEvent, (void *) pKeyEvent );
+    VclWindowEvent aEvent( pWin, nEvent, static_cast<void *>(pKeyEvent) );
 
     ImplSVData* pSVData = ImplGetSVData();
     bool bProcessed = false;
diff --git a/vcl/source/components/dtranscomp.cxx b/vcl/source/components/dtranscomp.cxx
index f2d221d743d3..53c90cab4c77 100644
--- a/vcl/source/components/dtranscomp.cxx
+++ b/vcl/source/components/dtranscomp.cxx
@@ -514,17 +514,17 @@ Reference< XInterface > SAL_CALL DropTarget_createInstance( const Reference< XMu
 */
 Reference< XInterface > SalInstance::CreateClipboard( const Sequence< Any >& )
 {
-    return Reference< XInterface >( ( cppu::OWeakObject * )new vcl::GenericClipboard() );
+    return Reference< XInterface >( static_cast<cppu::OWeakObject *>(new vcl::GenericClipboard()) );
 }
 
 Reference< XInterface > SalInstance::CreateDragSource()
 {
-    return Reference< XInterface >( ( cppu::OWeakObject * )new vcl::GenericDragSource() );
+    return Reference< XInterface >( static_cast<cppu::OWeakObject *>(new vcl::GenericDragSource()) );
 }
 
 Reference< XInterface > SalInstance::CreateDropTarget()
 {
-    return Reference< XInterface >( ( cppu::OWeakObject * )new vcl::GenericDropTarget() );
+    return Reference< XInterface >( static_cast<cppu::OWeakObject *>(new vcl::GenericDropTarget()) );
 }
 
 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/vcl/source/control/combobox.cxx b/vcl/source/control/combobox.cxx
index 4ba8095ace4b..096452a21baf 100644
--- a/vcl/source/control/combobox.cxx
+++ b/vcl/source/control/combobox.cxx
@@ -1051,7 +1051,7 @@ Size ComboBox::CalcAdjustedSize( const Size& rPrefSize ) const
 {
     Size aSz = rPrefSize;
     sal_Int32 nLeft, nTop, nRight, nBottom;
-    ((vcl::Window*)this)->GetBorder( nLeft, nTop, nRight, nBottom );
+    static_cast<vcl::Window*>(const_cast<ComboBox *>(this))->GetBorder( nLeft, nTop, nRight, nBottom );
     aSz.Height() -= nTop+nBottom;
     if ( !IsDropDownBox() )
     {
@@ -1367,7 +1367,7 @@ void ComboBox::SetNoSelection()
 Rectangle ComboBox::GetBoundingRectangle( sal_Int32 nItem ) const
 {
     Rectangle aRect = mpImplLB->GetMainWindow()->GetBoundingRectangle( nItem );
-    Rectangle aOffset = mpImplLB->GetMainWindow()->GetWindowExtentsRelative( (vcl::Window*)this );
+    Rectangle aOffset = mpImplLB->GetMainWindow()->GetWindowExtentsRelative( static_cast<vcl::Window*>(const_cast<ComboBox *>(this)) );
     aRect.Move( aOffset.TopLeft().X(), aOffset.TopLeft().Y() );
     return aRect;
 }
diff --git a/vcl/source/control/ilstbox.cxx b/vcl/source/control/ilstbox.cxx
index 2cf7dfb9407a..57360822dbb3 100644
--- a/vcl/source/control/ilstbox.cxx
+++ b/vcl/source/control/ilstbox.cxx
@@ -3008,8 +3008,8 @@ void ImplListBoxFloatingWindow::setPosSizePixel( long nX, long nY, long nWidth,
         // The number also cannot be calculated by List/Combobox, as for
         // this the presence of the vertical Scrollbar has to be known.
         mpImplLB->SetSizePixel( GetOutputSizePixel() );
-        ((vcl::Window*)mpImplLB)->Resize();
-        ((vcl::Window*)mpImplLB->GetMainWindow())->Resize();
+        static_cast<vcl::Window*>(mpImplLB)->Resize();
+        static_cast<vcl::Window*>(mpImplLB->GetMainWindow())->Resize();
     }
 }
 
diff --git a/vcl/source/control/lstbox.cxx b/vcl/source/control/lstbox.cxx
index 6944518cef79..b476d8647ada 100644
--- a/vcl/source/control/lstbox.cxx
+++ b/vcl/source/control/lstbox.cxx
@@ -1170,7 +1170,7 @@ bool ListBox::IsInDropDown() const
 Rectangle ListBox::GetBoundingRectangle( sal_Int32 nItem ) const
 {
     Rectangle aRect = mpImplLB->GetMainWindow()->GetBoundingRectangle( nItem );
-    Rectangle aOffset = mpImplLB->GetMainWindow()->GetWindowExtentsRelative( (vcl::Window*)this );
+    Rectangle aOffset = mpImplLB->GetMainWindow()->GetWindowExtentsRelative( static_cast<vcl::Window*>(const_cast<ListBox *>(this)) );
     aRect.Move( aOffset.TopLeft().X(), aOffset.TopLeft().Y() );
     return aRect;
 }
@@ -1295,7 +1295,7 @@ Size ListBox::CalcAdjustedSize( const Size& rPrefSize ) const
 {
     Size aSz = rPrefSize;
     sal_Int32 nLeft, nTop, nRight, nBottom;
-    ((vcl::Window*)this)->GetBorder( nLeft, nTop, nRight, nBottom );
+    static_cast<vcl::Window*>(const_cast<ListBox *>(this))->GetBorder( nLeft, nTop, nRight, nBottom );
     aSz.Height() -= nTop+nBottom;
     if ( !IsDropDownBox() )
     {
diff --git a/vcl/source/edit/vclmedit.cxx b/vcl/source/edit/vclmedit.cxx
index 11471c8c7f3d..f4b87780f1f8 100644
--- a/vcl/source/edit/vclmedit.cxx
+++ b/vcl/source/edit/vclmedit.cxx
@@ -1251,7 +1251,7 @@ Size VclMultiLineEdit::CalcMinimumSize() const
     Size aSz = pImpVclMEdit->CalcMinimumSize();
 
     sal_Int32 nLeft, nTop, nRight, nBottom;
-    ((vcl::Window*)this)->GetBorder( nLeft, nTop, nRight, nBottom );
+    static_cast<vcl::Window*>(const_cast<VclMultiLineEdit *>(this))->GetBorder( nLeft, nTop, nRight, nBottom );
     aSz.Width() += nLeft+nRight;
     aSz.Height() += nTop+nBottom;
 
@@ -1262,7 +1262,7 @@ Size VclMultiLineEdit::CalcAdjustedSize( const Size& rPrefSize ) const
 {
     Size aSz = rPrefSize;
     sal_Int32 nLeft, nTop, nRight, nBottom;
-    ((vcl::Window*)this)->GetBorder( nLeft, nTop, nRight, nBottom );
+    static_cast<vcl::Window*>(const_cast<VclMultiLineEdit *>(this))->GetBorder( nLeft, nTop, nRight, nBottom );
 
     // center vertically for whole lines
 
@@ -1283,7 +1283,7 @@ Size VclMultiLineEdit::CalcBlockSize( sal_uInt16 nColumns, sal_uInt16 nLines ) c
     Size aSz = pImpVclMEdit->CalcBlockSize( nColumns, nLines );
 
     sal_Int32 nLeft, nTop, nRight, nBottom;
-    ((vcl::Window*)this)->GetBorder( nLeft, nTop, nRight, nBottom );
+    static_cast<vcl::Window*>(const_cast<VclMultiLineEdit *>(this))->GetBorder( nLeft, nTop, nRight, nBottom );
     aSz.Width() += nLeft+nRight;
     aSz.Height() += nTop+nBottom;
     return aSz;
diff --git a/vcl/source/fontsubset/gsub.cxx b/vcl/source/fontsubset/gsub.cxx
index 77706e065583..a716ad719626 100644
--- a/vcl/source/fontsubset/gsub.cxx
+++ b/vcl/source/fontsubset/gsub.cxx
@@ -307,7 +307,7 @@ bool ReadGSUB( struct _TrueTypeFont* pTTFile,
             if( !aSubstVector.empty() )
             {
                 GlyphSubstitution* pGSubstitution = new GlyphSubstitution;
-                pTTFile->pGSubstitution = (void*)pGSubstitution;
+                pTTFile->pGSubstitution = static_cast<void*>(pGSubstitution);
                 for( subst_it = aSubstVector.begin(); subst_it != aSubstVector.end(); ++subst_it )
                     (*pGSubstitution)[ (*subst_it).first ] =  (*subst_it).second;
             }
diff --git a/vcl/source/fontsubset/ttcr.cxx b/vcl/source/fontsubset/ttcr.cxx
index 6f467b0a0d6e..db3367d6a905 100644
--- a/vcl/source/fontsubset/ttcr.cxx
+++ b/vcl/source/fontsubset/ttcr.cxx
@@ -925,7 +925,7 @@ TrueTypeTable *TrueTypeTableNew_head(sal_uInt32 fontRevision,
     PutUInt16(fontDirectionHint, ptr, 48, 1);
     PutUInt16(0, ptr, 52, 1);                     /* glyph data format: 0 */
 
-    table->data = (void *) ptr;
+    table->data = static_cast<void *>(ptr);
     table->tag = T_head;
     table->rawdata = 0;
 
@@ -954,7 +954,7 @@ TrueTypeTable *TrueTypeTableNew_hhea(sal_Int16  ascender,
     PutUInt16(0, ptr, 30, 1);                     /* reserved 5 */
     PutUInt16(0, ptr, 32, 1);                     /* metricDataFormat */
 
-    table->data = (void *) ptr;
+    table->data = static_cast<void *>(ptr);
     table->tag = T_hhea;
     table->rawdata = 0;
 
@@ -997,7 +997,7 @@ TrueTypeTable *TrueTypeTableNew_glyf()
 
     assert(l != 0);
 
-    listSetElementDtor(l, (list_destructor)FreeGlyphData);
+    listSetElementDtor(l, FreeGlyphData);
 
     table->data = l;
     table->rawdata = 0;
@@ -1054,7 +1054,7 @@ TrueTypeTable *TrueTypeTableNew_name(int n, NameRecord *nr)
 
     assert(l != 0);
 
-    listSetElementDtor(l, (list_destructor)DisposeNameRecord);
+    listSetElementDtor(l, DisposeNameRecord);
 
     if (n != 0) {
         int i;
diff --git a/vcl/source/gdi/alpha.cxx b/vcl/source/gdi/alpha.cxx
index ad1b5cc744e1..0e93985a87b2 100644
--- a/vcl/source/gdi/alpha.cxx
+++ b/vcl/source/gdi/alpha.cxx
@@ -51,7 +51,7 @@ AlphaMask::~AlphaMask()
 
 AlphaMask& AlphaMask::operator=( const Bitmap& rBitmap )
 {
-    *(Bitmap*) this = rBitmap;
+    *static_cast<Bitmap*>(this) = rBitmap;
 
     if( !!rBitmap )
         Bitmap::Convert( BMP_CONVERSION_8BIT_GREYS );
@@ -68,7 +68,7 @@ void AlphaMask::ImplSetBitmap( const Bitmap& rBitmap )
 {
     SAL_WARN_IF( 8 != rBitmap.GetBitCount(), "vcl.gdi", "Bitmap should be 8bpp, not " << rBitmap.GetBitCount() << "bpp" );
     SAL_WARN_IF( !rBitmap.HasGreyPalette(), "vcl.gdi", "Bitmap isn't greyscale" );
-    *(Bitmap*) this = rBitmap;
+    *static_cast<Bitmap*>(this) = rBitmap;
 }
 
 Bitmap AlphaMask::GetBitmap() const
diff --git a/vcl/source/gdi/gdimetafiletools.cxx b/vcl/source/gdi/gdimetafiletools.cxx
index fc8b6e91fe73..b0d99c54405a 100644
--- a/vcl/source/gdi/gdimetafiletools.cxx
+++ b/vcl/source/gdi/gdimetafiletools.cxx
@@ -875,7 +875,7 @@ void clipMetafileContentAgainstOwnRegions(GDIMetaFile& rSource)
                         tools::PolyPolygon aPath;
 
                         {   // read SvtGraphicFill
-                            SvMemoryStream aMemStm((void*)pA->GetData(), pA->GetDataSize(),StreamMode::READ);
+                            SvMemoryStream aMemStm(const_cast<sal_uInt8 *>(pA->GetData()), pA->GetDataSize(),StreamMode::READ);
                             ReadSvtGraphicFill( aMemStm, aFilling );
                         }
 
@@ -916,7 +916,7 @@ void clipMetafileContentAgainstOwnRegions(GDIMetaFile& rSource)
                         Polygon aPath;
 
                         {   // read SvtGraphicFill
-                            SvMemoryStream aMemStm((void*)pA->GetData(), pA->GetDataSize(),StreamMode::READ);
+                            SvMemoryStream aMemStm(const_cast<sal_uInt8 *>(pA->GetData()), pA->GetDataSize(),StreamMode::READ);
                             ReadSvtGraphicStroke( aMemStm, aStroke );
                         }
 
diff --git a/vcl/source/gdi/gdimtf.cxx b/vcl/source/gdi/gdimtf.cxx
index 94be557415aa..fcb661159c2e 100644
--- a/vcl/source/gdi/gdimtf.cxx
+++ b/vcl/source/gdi/gdimtf.cxx
@@ -1196,7 +1196,7 @@ void GDIMetaFile::Rotate( long nAngle10 )
                         {
                             if ( pCommentAct->GetDataSize() )
                             {
-                                SvMemoryStream aMemStm( (void*)pCommentAct->GetData(), pCommentAct->GetDataSize(), StreamMode::READ );
+                                SvMemoryStream aMemStm( const_cast<sal_uInt8 *>(pCommentAct->GetData()), pCommentAct->GetDataSize(), StreamMode::READ );
                                 SvMemoryStream aDest;
                                 if ( bPathStroke )
                                 {
diff --git a/vcl/source/gdi/impanmvw.cxx b/vcl/source/gdi/impanmvw.cxx
index 9d7cea0b529a..2176ee562ab3 100644
--- a/vcl/source/gdi/impanmvw.cxx
+++ b/vcl/source/gdi/impanmvw.cxx
@@ -308,7 +308,7 @@ AInfo* ImplAnimView::createAInfo() const
     pAInfo->aStartOrg = maPt;
     pAInfo->aStartSize = maSz;
     pAInfo->pOutDev = mpOut;
-    pAInfo->pViewData = (void*) this;
+    pAInfo->pViewData = const_cast<ImplAnimView *>(this);
     pAInfo->nExtraData = mnExtraData;
     pAInfo->bPause = mbPause;
 
diff --git a/vcl/source/gdi/metaact.cxx b/vcl/source/gdi/metaact.cxx
index 887bf7f621db..10b0e7f469ed 100644
--- a/vcl/source/gdi/metaact.cxx
+++ b/vcl/source/gdi/metaact.cxx
@@ -293,7 +293,7 @@ void MetaPixelAction::Execute( OutputDevice* pOut )
 
 MetaAction* MetaPixelAction::Clone()
 {
-    MetaAction* pClone = (MetaAction*) new MetaPixelAction( *this );
+    MetaAction* pClone = static_cast<MetaAction*>(new MetaPixelAction( *this ));
     pClone->ResetRefCount();
     return pClone;
 }
@@ -348,7 +348,7 @@ void MetaPointAction::Execute( OutputDevice* pOut )
 
 MetaAction* MetaPointAction::Clone()
 {
-    MetaAction* pClone = (MetaAction*) new MetaPointAction( *this );
+    MetaAction* pClone = static_cast<MetaAction*>(new MetaPointAction( *this ));
     pClone->ResetRefCount();
     return pClone;
 }
@@ -412,7 +412,7 @@ void MetaLineAction::Execute( OutputDevice* pOut )
 
 MetaAction* MetaLineAction::Clone()
 {
-    MetaAction* pClone = (MetaAction*) new MetaLineAction( *this );
+    MetaAction* pClone = static_cast<MetaAction*>(new MetaLineAction( *this ));
     pClone->ResetRefCount();
     return pClone;
 }
@@ -481,7 +481,7 @@ void MetaRectAction::Execute( OutputDevice* pOut )
 
 MetaAction* MetaRectAction::Clone()
 {
-    MetaAction* pClone = (MetaAction*) new MetaRectAction( *this );
+    MetaAction* pClone = static_cast<MetaAction*>(new MetaRectAction( *this ));
     pClone->ResetRefCount();
     return pClone;
 }
@@ -538,7 +538,7 @@ void MetaRoundRectAction::Execute( OutputDevice* pOut )
 
 MetaAction* MetaRoundRectAction::Clone()
 {
-    MetaAction* pClone = (MetaAction*) new MetaRoundRectAction( *this );
+    MetaAction* pClone = static_cast<MetaAction*>(new MetaRoundRectAction( *this ));
     pClone->ResetRefCount();
     return pClone;
 }
@@ -595,7 +595,7 @@ void MetaEllipseAction::Execute( OutputDevice* pOut )
 
 MetaAction* MetaEllipseAction::Clone()
 {
-    MetaAction* pClone = (MetaAction*) new MetaEllipseAction( *this );
+    MetaAction* pClone = static_cast<MetaAction*>(new MetaEllipseAction( *this ));
     pClone->ResetRefCount();
     return pClone;
 }
@@ -650,7 +650,7 @@ void MetaArcAction::Execute( OutputDevice* pOut )
 
 MetaAction* MetaArcAction::Clone()
 {
-    MetaAction* pClone = (MetaAction*) new MetaArcAction( *this );
+    MetaAction* pClone = static_cast<MetaAction*>(new MetaArcAction( *this ));
     pClone->ResetRefCount();
     return pClone;
 }
@@ -715,7 +715,7 @@ void MetaPieAction::Execute( OutputDevice* pOut )
 
 MetaAction* MetaPieAction::Clone()
 {
-    MetaAction* pClone = (MetaAction*) new MetaPieAction( *this );
+    MetaAction* pClone = static_cast<MetaAction*>(new MetaPieAction( *this ));
     pClone->ResetRefCount();
     return pClone;
 }
@@ -780,7 +780,7 @@ void MetaChordAction::Execute( OutputDevice* pOut )
 
 MetaAction* MetaChordAction::Clone()
 {
-    MetaAction* pClone = (MetaAction*) new MetaChordAction( *this );
+    MetaAction* pClone = static_cast<MetaAction*>(new MetaChordAction( *this ));
     pClone->ResetRefCount();
     return pClone;
 }
@@ -851,7 +851,7 @@ void MetaPolyLineAction::Execute( OutputDevice* pOut )
 
 MetaAction* MetaPolyLineAction::Clone()
 {
-    MetaAction* pClone = (MetaAction*) new MetaPolyLineAction( *this );
+    MetaAction* pClone = static_cast<MetaAction*>(new MetaPolyLineAction( *this ));
     pClone->ResetRefCount();
     return pClone;
 }
@@ -933,7 +933,7 @@ void MetaPolygonAction::Execute( OutputDevice* pOut )
 
 MetaAction* MetaPolygonAction::Clone()
 {
-    MetaAction* pClone = (MetaAction*) new MetaPolygonAction( *this );
+    MetaAction* pClone = static_cast<MetaAction*>(new MetaPolygonAction( *this ));
     pClone->ResetRefCount();
     return pClone;
 }
@@ -1002,7 +1002,7 @@ void MetaPolyPolygonAction::Execute( OutputDevice* pOut )
 
 MetaAction* MetaPolyPolygonAction::Clone()
 {
-    MetaAction* pClone = (MetaAction*) new MetaPolyPolygonAction( *this );
+    MetaAction* pClone = static_cast<MetaAction*>(new MetaPolyPolygonAction( *this ));
     pClone->ResetRefCount();
     return pClone;
 }
@@ -1115,7 +1115,7 @@ void MetaTextAction::Execute( OutputDevice* pOut )
 
 MetaAction* MetaTextAction::Clone()
 {
-    MetaAction* pClone = (MetaAction*) new MetaTextAction( *this );
+    MetaAction* pClone = static_cast<MetaAction*>(new MetaTextAction( *this ));
     pClone->ResetRefCount();
     return pClone;
 }
@@ -1225,7 +1225,7 @@ void MetaTextArrayAction::Execute( OutputDevice* pOut )
 
 MetaAction* MetaTextArrayAction::Clone()
 {
-    MetaAction* pClone = (MetaAction*) new MetaTextArrayAction( *this );
+    MetaAction* pClone = static_cast<MetaAction*>(new MetaTextArrayAction( *this ));
     pClone->ResetRefCount();
     return pClone;
 }
@@ -1365,7 +1365,7 @@ void MetaStretchTextAction::Execute( OutputDevice* pOut )
 
 MetaAction* MetaStretchTextAction::Clone()
 {
-    MetaAction* pClone = (MetaAction*) new MetaStretchTextAction( *this );
+    MetaAction* pClone = static_cast<MetaAction*>(new MetaStretchTextAction( *this ));
     pClone->ResetRefCount();
     return pClone;
 }
@@ -1443,7 +1443,7 @@ void MetaTextRectAction::Execute( OutputDevice* pOut )
 
 MetaAction* MetaTextRectAction::Clone()
 {
-    MetaAction* pClone = (MetaAction*) new MetaTextRectAction( *this );
+    MetaAction* pClone = static_cast<MetaAction*>(new MetaTextRectAction( *this ));
     pClone->ResetRefCount();
     return pClone;
 }
@@ -1519,7 +1519,7 @@ void MetaTextLineAction::Execute( OutputDevice* pOut )
 
 MetaAction* MetaTextLineAction::Clone()
 {
-    MetaAction* pClone = (MetaAction*)new MetaTextLineAction( *this );
+    MetaAction* pClone = static_cast<MetaAction*>(new MetaTextLineAction( *this ));
     pClone->ResetRefCount();
     return pClone;
 }
@@ -1598,7 +1598,7 @@ void MetaBmpAction::Execute( OutputDevice* pOut )
 
 MetaAction* MetaBmpAction::Clone()
 {
-    MetaAction* pClone = (MetaAction*) new MetaBmpAction( *this );
+    MetaAction* pClone = static_cast<MetaAction*>(new MetaBmpAction( *this ));
     pClone->ResetRefCount();
     return pClone;
 }
@@ -1659,7 +1659,7 @@ void MetaBmpScaleAction::Execute( OutputDevice* pOut )
 
 MetaAction* MetaBmpScaleAction::Clone()
 {
-    MetaAction* pClone = (MetaAction*) new MetaBmpScaleAction( *this );
+    MetaAction* pClone = static_cast<MetaAction*>(new MetaBmpScaleAction( *this ));
     pClone->ResetRefCount();
     return pClone;
 }
@@ -1729,7 +1729,7 @@ void MetaBmpScalePartAction::Execute( OutputDevice* pOut )
 
 MetaAction* MetaBmpScalePartAction::Clone()
 {
-    MetaAction* pClone = (MetaAction*) new MetaBmpScalePartAction( *this );
+    MetaAction* pClone = static_cast<MetaAction*>(new MetaBmpScalePartAction( *this ));
     pClone->ResetRefCount();
     return pClone;
 }
@@ -1861,7 +1861,7 @@ void MetaBmpExScaleAction::Execute( OutputDevice* pOut )
 
 MetaAction* MetaBmpExScaleAction::Clone()
 {
-    MetaAction* pClone = (MetaAction*) new MetaBmpExScaleAction( *this );
+    MetaAction* pClone = static_cast<MetaAction*>(new MetaBmpExScaleAction( *this ));
     pClone->ResetRefCount();
     return pClone;
 }
@@ -1931,7 +1931,7 @@ void MetaBmpExScalePartAction::Execute( OutputDevice* pOut )
 
 MetaAction* MetaBmpExScalePartAction::Clone()
 {
-    MetaAction* pClone = (MetaAction*) new MetaBmpExScalePartAction( *this );
+    MetaAction* pClone = static_cast<MetaAction*>(new MetaBmpExScalePartAction( *this ));
     pClone->ResetRefCount();
     return pClone;
 }
@@ -2005,7 +2005,7 @@ void MetaMaskAction::Execute( OutputDevice* pOut )
 
 MetaAction* MetaMaskAction::Clone()
 {
-    MetaAction* pClone = (MetaAction*) new MetaMaskAction( *this );
+    MetaAction* pClone = static_cast<MetaAction*>(new MetaMaskAction( *this ));
     pClone->ResetRefCount();
     return pClone;
 }
@@ -2069,7 +2069,7 @@ void MetaMaskScaleAction::Execute( OutputDevice* pOut )
 
 MetaAction* MetaMaskScaleAction::Clone()
 {
-    MetaAction* pClone = (MetaAction*) new MetaMaskScaleAction( *this );
+    MetaAction* pClone = static_cast<MetaAction*>(new MetaMaskScaleAction( *this ));
     pClone->ResetRefCount();
     return pClone;
 }
@@ -2142,7 +2142,7 @@ void MetaMaskScalePartAction::Execute( OutputDevice* pOut )
 
 MetaAction* MetaMaskScalePartAction::Clone()
 {
-    MetaAction* pClone = (MetaAction*) new MetaMaskScalePartAction( *this );
+    MetaAction* pClone = static_cast<MetaAction*>(new MetaMaskScalePartAction( *this ));
     pClone->ResetRefCount();
     return pClone;
 }
@@ -2216,7 +2216,7 @@ void MetaGradientAction::Execute( OutputDevice* pOut )
 
 MetaAction* MetaGradientAction::Clone()
 {
-    MetaAction* pClone = (MetaAction*) new MetaGradientAction( *this );
+    MetaAction* pClone = static_cast<MetaAction*>(new MetaGradientAction( *this ));
     pClone->ResetRefCount();
     return pClone;
 }
@@ -2276,7 +2276,7 @@ void MetaGradientExAction::Execute( OutputDevice* pOut )
 
 MetaAction* MetaGradientExAction::Clone()
 {
-    MetaAction* pClone = (MetaAction*) new MetaGradientExAction( *this );
+    MetaAction* pClone = static_cast<MetaAction*>(new MetaGradientExAction( *this ));
     pClone->ResetRefCount();
     return pClone;
 }
@@ -2338,7 +2338,7 @@ void MetaHatchAction::Execute( OutputDevice* pOut )
 
 MetaAction* MetaHatchAction::Clone()
 {
-    MetaAction* pClone = (MetaAction*) new MetaHatchAction( *this );
+    MetaAction* pClone = static_cast<MetaAction*>(new MetaHatchAction( *this ));
     pClone->ResetRefCount();
     return pClone;
 }
@@ -2401,7 +2401,7 @@ void MetaWallpaperAction::Execute( OutputDevice* pOut )
 
 MetaAction* MetaWallpaperAction::Clone()
 {
-    MetaAction* pClone = (MetaAction*) new MetaWallpaperAction( *this );
+    MetaAction* pClone = static_cast<MetaAction*>(new MetaWallpaperAction( *this ));
     pClone->ResetRefCount();
     return pClone;
 }
@@ -2460,7 +2460,7 @@ void MetaClipRegionAction::Execute( OutputDevice* pOut )
 
 MetaAction* MetaClipRegionAction::Clone()
 {
-    MetaAction* pClone = (MetaAction*) new MetaClipRegionAction( *this );
+    MetaAction* pClone = static_cast<MetaAction*>(new MetaClipRegionAction( *this ));
     pClone->ResetRefCount();
     return pClone;
 }
@@ -2516,7 +2516,7 @@ void MetaISectRectClipRegionAction::Execute( OutputDevice* pOut )
 
 MetaAction* MetaISectRectClipRegionAction::Clone()
 {
-    MetaAction* pClone = (MetaAction*) new MetaISectRectClipRegionAction( *this );
+    MetaAction* pClone = static_cast<MetaAction*>(new MetaISectRectClipRegionAction( *this ));
     pClone->ResetRefCount();
     return pClone;
 }
@@ -2569,7 +2569,7 @@ void MetaISectRegionClipRegionAction::Execute( OutputDevice* pOut )
 
 MetaAction* MetaISectRegionClipRegionAction::Clone()
 {
-    MetaAction* pClone = (MetaAction*) new MetaISectRegionClipRegionAction( *this );
+    MetaAction* pClone = static_cast<MetaAction*>(new MetaISectRegionClipRegionAction( *this ));
     pClone->ResetRefCount();
     return pClone;
 }
@@ -2624,7 +2624,7 @@ void MetaMoveClipRegionAction::Execute( OutputDevice* pOut )
 
 MetaAction* MetaMoveClipRegionAction::Clone()
 {
-    MetaAction* pClone = (MetaAction*) new MetaMoveClipRegionAction( *this );
+    MetaAction* pClone = static_cast<MetaAction*>(new MetaMoveClipRegionAction( *this ));
     pClone->ResetRefCount();
     return pClone;
 }
@@ -2681,7 +2681,7 @@ void MetaLineColorAction::Execute( OutputDevice* pOut )
 
 MetaAction* MetaLineColorAction::Clone()
 {
-    MetaAction* pClone = (MetaAction*) new MetaLineColorAction( *this );
+    MetaAction* pClone = static_cast<MetaAction*>(new MetaLineColorAction( *this ));
     pClone->ResetRefCount();
     return pClone;
 }
@@ -2731,7 +2731,7 @@ void MetaFillColorAction::Execute( OutputDevice* pOut )
 
 MetaAction* MetaFillColorAction::Clone()
 {
-    MetaAction* pClone = (MetaAction*) new MetaFillColorAction( *this );
+    MetaAction* pClone = static_cast<MetaAction*>(new MetaFillColorAction( *this ));
     pClone->ResetRefCount();
     return pClone;
 }
@@ -2776,7 +2776,7 @@ void MetaTextColorAction::Execute( OutputDevice* pOut )
 
 MetaAction* MetaTextColorAction::Clone()
 {
-    MetaAction* pClone = (MetaAction*) new MetaTextColorAction( *this );
+    MetaAction* pClone = static_cast<MetaAction*>(new MetaTextColorAction( *this ));
     pClone->ResetRefCount();
     return pClone;
 }
@@ -2823,7 +2823,7 @@ void MetaTextFillColorAction::Execute( OutputDevice* pOut )
 
 MetaAction* MetaTextFillColorAction::Clone()
 {
-    MetaAction* pClone = (MetaAction*) new MetaTextFillColorAction( *this );
+    MetaAction* pClone = static_cast<MetaAction*>(new MetaTextFillColorAction( *this ));
     pClone->ResetRefCount();
     return pClone;
 }
@@ -2873,7 +2873,7 @@ void MetaTextLineColorAction::Execute( OutputDevice* pOut )
 
 MetaAction* MetaTextLineColorAction::Clone()
 {
-    MetaAction* pClone = (MetaAction*) new MetaTextLineColorAction( *this );
+    MetaAction* pClone = static_cast<MetaAction*>(new MetaTextLineColorAction( *this ));
     pClone->ResetRefCount();
     return pClone;
 }
@@ -2923,7 +2923,7 @@ void MetaOverlineColorAction::Execute( OutputDevice* pOut )
 
 MetaAction* MetaOverlineColorAction::Clone()
 {
-    MetaAction* pClone = (MetaAction*) new MetaOverlineColorAction( *this );
+    MetaAction* pClone = static_cast<MetaAction*>(new MetaOverlineColorAction( *this ));
     pClone->ResetRefCount();
     return pClone;
 }
@@ -2969,7 +2969,7 @@ void MetaTextAlignAction::Execute( OutputDevice* pOut )
 
 MetaAction* MetaTextAlignAction::Clone()
 {
-    MetaAction* pClone = (MetaAction*) new MetaTextAlignAction( *this );
+    MetaAction* pClone = static_cast<MetaAction*>(new MetaTextAlignAction( *this ));
     pClone->ResetRefCount();
     return pClone;
 }
@@ -3013,7 +3013,7 @@ void MetaMapModeAction::Execute( OutputDevice* pOut )
 
 MetaAction* MetaMapModeAction::Clone()
 {
-    MetaAction* pClone = (MetaAction*) new MetaMapModeAction( *this );
+    MetaAction* pClone = static_cast<MetaAction*>(new MetaMapModeAction( *this ));
     pClone->ResetRefCount();
     return pClone;
 }
@@ -3073,7 +3073,7 @@ void MetaFontAction::Execute( OutputDevice* pOut )
 
 MetaAction* MetaFontAction::Clone()
 {
-    MetaAction* pClone = (MetaAction*) new MetaFontAction( *this );
+    MetaAction* pClone = static_cast<MetaAction*>(new MetaFontAction( *this ));
     pClone->ResetRefCount();
     return pClone;
 }
@@ -3130,7 +3130,7 @@ void MetaPushAction::Execute( OutputDevice* pOut )
 
 MetaAction* MetaPushAction::Clone()
 {
-    MetaAction* pClone = (MetaAction*) new MetaPushAction( *this );
+    MetaAction* pClone = static_cast<MetaAction*>(new MetaPushAction( *this ));
     pClone->ResetRefCount();
     return pClone;
 }
@@ -3169,7 +3169,7 @@ void MetaPopAction::Execute( OutputDevice* pOut )
 
 MetaAction* MetaPopAction::Clone()
 {
-    MetaAction* pClone = (MetaAction*) new MetaPopAction( *this );
+    MetaAction* pClone = static_cast<MetaAction*>(new MetaPopAction( *this ));
     pClone->ResetRefCount();
     return pClone;
 }
@@ -3206,7 +3206,7 @@ void MetaRasterOpAction::Execute( OutputDevice* pOut )
 
 MetaAction* MetaRasterOpAction::Clone()
 {
-    MetaAction* pClone = (MetaAction*) new MetaRasterOpAction( *this );
+    MetaAction* pClone = static_cast<MetaAction*>(new MetaRasterOpAction( *this ));
     pClone->ResetRefCount();
     return pClone;
 }
@@ -3252,7 +3252,7 @@ void MetaTransparentAction::Execute( OutputDevice* pOut )
 
 MetaAction* MetaTransparentAction::Clone()
 {
-    MetaAction* pClone = (MetaAction*) new MetaTransparentAction( *this );
+    MetaAction* pClone = static_cast<MetaAction*>(new MetaTransparentAction( *this ));
     pClone->ResetRefCount();
     return pClone;
 }
@@ -3325,7 +3325,7 @@ void MetaFloatTransparentAction::Execute( OutputDevice* pOut )
 
 MetaAction* MetaFloatTransparentAction::Clone()
 {
-    MetaAction* pClone = (MetaAction*) new MetaFloatTransparentAction( *this );
+    MetaAction* pClone = static_cast<MetaAction*>(new MetaFloatTransparentAction( *this ));
     pClone->ResetRefCount();
     return pClone;
 }
@@ -3394,7 +3394,7 @@ void MetaEPSAction::Execute( OutputDevice* pOut )
 
 MetaAction* MetaEPSAction::Clone()
 {
-    MetaAction* pClone = (MetaAction*) new MetaEPSAction( *this );
+    MetaAction* pClone = static_cast<MetaAction*>(new MetaEPSAction( *this ));
     pClone->ResetRefCount();
     return pClone;
 }
@@ -3464,7 +3464,7 @@ void MetaRefPointAction::Execute( OutputDevice* pOut )
 
 MetaAction* MetaRefPointAction::Clone()
 {
-    MetaAction* pClone = (MetaAction*) new MetaRefPointAction( *this );
+    MetaAction* pClone = static_cast<MetaAction*>(new MetaRefPointAction( *this ));
     pClone->ResetRefCount();
     return pClone;
 }
@@ -3544,7 +3544,7 @@ void MetaCommentAction::Execute( OutputDevice* pOut )
 
 MetaAction* MetaCommentAction::Clone()
 {
-    MetaAction* pClone = (MetaAction*) new MetaCommentAction( *this );
+    MetaAction* pClone = static_cast<MetaAction*>(new MetaCommentAction( *this ));
     pClone->ResetRefCount();
     return pClone;
 }
@@ -3558,7 +3558,7 @@ void MetaCommentAction::Move( long nXMove, long nYMove )
             bool bPathStroke = (maComment == "XPATHSTROKE_SEQ_BEGIN");
             if ( bPathStroke || maComment == "XPATHFILL_SEQ_BEGIN" )
             {
-                SvMemoryStream  aMemStm( (void*)mpData, mnDataSize, StreamMode::READ );
+                SvMemoryStream  aMemStm( static_cast<void*>(mpData), mnDataSize, StreamMode::READ );
                 SvMemoryStream  aDest;
                 if ( bPathStroke )
                 {
@@ -3614,7 +3614,7 @@ void MetaCommentAction::Scale( double fXScale, double fYScale )
             bool bPathStroke = (maComment == "XPATHSTROKE_SEQ_BEGIN");
             if ( bPathStroke || maComment == "XPATHFILL_SEQ_BEGIN" )
             {
-                SvMemoryStream  aMemStm( (void*)mpData, mnDataSize, StreamMode::READ );
+                SvMemoryStream  aMemStm( static_cast<void*>(mpData), mnDataSize, StreamMode::READ );
                 SvMemoryStream  aDest;
                 if ( bPathStroke )
                 {
@@ -3636,7 +3636,7 @@ void MetaCommentAction::Scale( double fXScale, double fYScale )
                 delete[] mpData;
                 ImplInitDynamicData( static_cast<const sal_uInt8*>( aDest.GetData() ), aDest.Tell() );
             } else if( maComment == "EMF_PLUS_HEADER_INFO" ){
-                SvMemoryStream  aMemStm( (void*)mpData, mnDataSize, StreamMode::READ );
+                SvMemoryStream  aMemStm( static_cast<void*>(mpData), mnDataSize, StreamMode::READ );
                 SvMemoryStream  aDest;
 
                 sal_Int32 nLeft(0), nRight(0), nTop(0), nBottom(0);
@@ -3724,7 +3724,7 @@ void MetaLayoutModeAction::Execute( OutputDevice* pOut )
 
 MetaAction* MetaLayoutModeAction::Clone()
 {
-    MetaAction* pClone = (MetaAction*) new MetaLayoutModeAction( *this );
+    MetaAction* pClone = static_cast<MetaAction*>(new MetaLayoutModeAction( *this ));
     pClone->ResetRefCount();
     return pClone;
 }
@@ -3769,7 +3769,7 @@ void MetaTextLanguageAction::Execute( OutputDevice* pOut )
 
 MetaAction* MetaTextLanguageAction::Clone()
 {
-    MetaAction* pClone = (MetaAction*) new MetaTextLanguageAction( *this );
+    MetaAction* pClone = static_cast<MetaAction*>(new MetaTextLanguageAction( *this ));
     pClone->ResetRefCount();
     return pClone;
 }
diff --git a/vcl/source/gdi/pdfwriter_impl.cxx b/vcl/source/gdi/pdfwriter_impl.cxx
index 5bd32277186f..fc13cbb5d765 100644
--- a/vcl/source/gdi/pdfwriter_impl.cxx
+++ b/vcl/source/gdi/pdfwriter_impl.cxx
@@ -1757,7 +1757,7 @@ void PDFWriterImpl::PDFPage::appendWaveLine( sal_Int32 nWidth, sal_Int32 nY, sal
         m_pCodec( NULL ),
         m_pMemStream(NULL),
         m_aDocDigest( rtl_digest_createMD5() ),
-        m_aCipher( (rtlCipher)NULL ),
+        m_aCipher( nullptr ),
         m_aDigest( NULL ),
         m_nKeyLength(0),
         m_nRC4KeyLength(0),
@@ -6631,7 +6631,7 @@ my_NSS_CMSAttributeArray_AddAttr(PLArenaPool *poolp, NSSCMSAttribute ***attrs, N
         goto loser; /* XXX or would it be better to replace it? */
 
     /* no, shove it in */
-    if (my_NSS_CMSArray_Add(poolp, reinterpret_cast<void ***>(attrs), (void *)attr) != SECSuccess)
+    if (my_NSS_CMSArray_Add(poolp, reinterpret_cast<void ***>(attrs), static_cast<void *>(attr)) != SECSuccess)
         goto loser;
 
     PORT_ArenaUnmark(poolp, mark);
diff --git a/vcl/source/gdi/pdfwriter_impl2.cxx b/vcl/source/gdi/pdfwriter_impl2.cxx
index 1bea52978961..9c4150f8f57a 100644
--- a/vcl/source/gdi/pdfwriter_impl2.cxx
+++ b/vcl/source/gdi/pdfwriter_impl2.cxx
@@ -550,7 +550,7 @@ void PDFWriterImpl::playMetafile( const GDIMetaFile& i_rMtf, vcl::PDFExtOutDevDa
                         const sal_uInt8* pData = pA->GetData();
                         if ( pData )
                         {
-                            SvMemoryStream  aMemStm( (void*)pData, pA->GetDataSize(), StreamMode::READ );
+                            SvMemoryStream  aMemStm( const_cast<sal_uInt8 *>(pData), pA->GetDataSize(), StreamMode::READ );
                             bool            bSkipSequence = false;
                             OString sSeqEnd;
 
diff --git a/vcl/source/opengl/OpenGLContext.cxx b/vcl/source/opengl/OpenGLContext.cxx
index ef6e1ac4d311..0c713bdfa83b 100644
--- a/vcl/source/opengl/OpenGLContext.cxx
+++ b/vcl/source/opengl/OpenGLContext.cxx
@@ -1315,7 +1315,7 @@ SystemWindowData OpenGLContext::generateWinData(vcl::Window* pParent, bool)
     if( vi )
     {
         SAL_INFO("vcl.opengl", "using VisualID " << vi->visualid);
-        aWinData.pVisual = (void*)(vi->visual);
+        aWinData.pVisual = static_cast<void*>(vi->visual);
     }
 #endif
 
diff --git a/vcl/source/outdev/bitmap.cxx b/vcl/source/outdev/bitmap.cxx
index 718cef96f455..48ac3730956a 100644
--- a/vcl/source/outdev/bitmap.cxx
+++ b/vcl/source/outdev/bitmap.cxx
@@ -430,7 +430,7 @@ Bitmap OutputDevice::GetBitmap( const Point& rSrcPt, const Size& rSize ) const
 
                 if ( aVDev->SetOutputSizePixel( aRect.GetSize() ) )
                 {
-                    if ( ((OutputDevice*)aVDev.get())->mpGraphics || ((OutputDevice*)aVDev.get())->AcquireGraphics() )
+                    if ( static_cast<OutputDevice*>(aVDev.get())->mpGraphics || static_cast<OutputDevice*>(aVDev.get())->AcquireGraphics() )
                     {
                         if ( (nWidth > 0) && (nHeight > 0) )
                         {
@@ -438,7 +438,7 @@ Bitmap OutputDevice::GetBitmap( const Point& rSrcPt, const Size& rSize ) const
                                               (aRect.Left() < mnOutOffX) ? (mnOutOffX - aRect.Left()) : 0L,
                                               (aRect.Top() < mnOutOffY) ? (mnOutOffY - aRect.Top()) : 0L,
                                               nWidth, nHeight);
-                            (((OutputDevice*)aVDev.get())->mpGraphics)->CopyBits( aPosAry, mpGraphics, this, this );
+                            (static_cast<OutputDevice*>(aVDev.get())->mpGraphics)->CopyBits( aPosAry, mpGraphics, this, this );
                         }
                         else
                         {
diff --git a/vcl/source/outdev/font.cxx b/vcl/source/outdev/font.cxx
index 216c8a6f8fcd..eb43913f3deb 100644
--- a/vcl/source/outdev/font.cxx
+++ b/vcl/source/outdev/font.cxx
@@ -610,7 +610,7 @@ void OutputDevice::ImplClearAllFontData(bool bNewFontLists)
             if ( pFrame->AcquireGraphics() )
             {
                 // Stupid typecast here and somewhere ((OutputDevice*)&aVDev)->, because bug in .NET2002 compiler
-                OutputDevice *pDevice = (OutputDevice*)pFrame;
+                OutputDevice *pDevice = static_cast<OutputDevice*>(pFrame);
                 pDevice->mpGraphics->ClearDevFontCache();
                 pDevice->mpGraphics->GetDevFontList(pFrame->mpWindowImpl->mpFrameData->mpFontCollection);
             }
diff --git a/vcl/source/outdev/text.cxx b/vcl/source/outdev/text.cxx
index 639151d50a76..9c4f07131bb3 100644
--- a/vcl/source/outdev/text.cxx
+++ b/vcl/source/outdev/text.cxx
@@ -255,7 +255,7 @@ bool OutputDevice::ImplDrawRotateText( SalLayout& rSalLayout )
 
     // draw text into upper left corner
     rSalLayout.DrawBase() -= aBoundRect.TopLeft();
-    rSalLayout.DrawText( *((OutputDevice*)pVDev)->mpGraphics );
+    rSalLayout.DrawText( *static_cast<OutputDevice*>(pVDev)->mpGraphics );
 
     Bitmap aBmp = pVDev->GetBitmap( Point(), aBoundRect.GetSize() );
     if ( !aBmp || !aBmp.Rotate( mpFontEntry->mnOwnOrientation, COL_WHITE ) )
@@ -2817,8 +2817,8 @@ bool OutputDevice::GetTextOutlines( ::basegfx::B2DPolyPolygonVector& rVector,
                     {
                         Point& rPt = rPoly[k];
                         rPt -= aOffset;
-                        int nPixelX = rPt.X() - ((OutputDevice*)aVDev.get())->mnTextOffX + nXOffset;
-                        int nPixelY = rPt.Y() - ((OutputDevice*)aVDev.get())->mnTextOffY;
+                        int nPixelX = rPt.X() - static_cast<OutputDevice*>(aVDev.get())->mnTextOffX + nXOffset;
+                        int nPixelY = rPt.Y() - static_cast<OutputDevice*>(aVDev.get())->mnTextOffY;
                         rPt.X() = ImplDevicePixelToLogicWidth( nPixelX );
                         rPt.Y() = ImplDevicePixelToLogicHeight( nPixelY );
                     }
diff --git a/vcl/source/outdev/transparent.cxx b/vcl/source/outdev/transparent.cxx
index 2275169eb4f0..34f01a305b42 100644
--- a/vcl/source/outdev/transparent.cxx
+++ b/vcl/source/outdev/transparent.cxx
@@ -695,8 +695,8 @@ void OutputDevice::DrawTransparent( const GDIMetaFile& rMtf, const Point& rPos,
         {
             ScopedVclPtrInstance< VirtualDevice > xVDev;
 
-            ((OutputDevice*)xVDev.get())->mnDPIX = mnDPIX;
-            ((OutputDevice*)xVDev.get())->mnDPIY = mnDPIY;
+            static_cast<OutputDevice*>(xVDev.get())->mnDPIX = mnDPIX;
+            static_cast<OutputDevice*>(xVDev.get())->mnDPIY = mnDPIY;
 
             if( xVDev->SetOutputSizePixel( aDstRect.GetSize() ) )
             {
diff --git a/vcl/source/window/dialog.cxx b/vcl/source/window/dialog.cxx
index f4250be4de59..7d01ba35778a 100644
--- a/vcl/source/window/dialog.cxx
+++ b/vcl/source/window/dialog.cxx
@@ -1089,7 +1089,7 @@ void Dialog::GrabFocusToFirstControl()
 
 void Dialog::GetDrawWindowBorder( sal_Int32& rLeftBorder, sal_Int32& rTopBorder, sal_Int32& rRightBorder, sal_Int32& rBottomBorder ) const
 {
-    ScopedVclPtrInstance<ImplBorderWindow> aImplWin( (vcl::Window*)this, WB_BORDER|WB_STDWORK, BORDERWINDOW_STYLE_OVERLAP );
+    ScopedVclPtrInstance<ImplBorderWindow> aImplWin( static_cast<vcl::Window*>(const_cast<Dialog *>(this)), WB_BORDER|WB_STDWORK, BORDERWINDOW_STYLE_OVERLAP );
     aImplWin->GetBorder( rLeftBorder, rTopBorder, rRightBorder, rBottomBorder );
 }
 
diff --git a/vcl/source/window/event.cxx b/vcl/source/window/event.cxx
index eda79c040bbd..ec6a9b6e6153 100644
--- a/vcl/source/window/event.cxx
+++ b/vcl/source/window/event.cxx
@@ -360,7 +360,7 @@ void Window::ImplNotifyKeyMouseCommandEventListeners( NotifyEvent& rNEvt )
         if ( mpWindowImpl->mbCompoundControl || ( rNEvt.GetWindow() == this ) )
         {
             if ( rNEvt.GetWindow() == this )
-                CallEventListeners( VCLEVENT_WINDOW_MOUSEMOVE, (void*)rNEvt.GetMouseEvent() );
+                CallEventListeners( VCLEVENT_WINDOW_MOUSEMOVE, const_cast<MouseEvent *>(rNEvt.GetMouseEvent()) );
             else
             {
                 MouseEvent aMouseEvent = ImplTranslateMouseEvent( *rNEvt.GetMouseEvent(), rNEvt.GetWindow(), this );
@@ -373,7 +373,7 @@ void Window::ImplNotifyKeyMouseCommandEventListeners( NotifyEvent& rNEvt )
         if ( mpWindowImpl->mbCompoundControl || ( rNEvt.GetWindow() == this ) )
         {
             if ( rNEvt.GetWindow() == this )
-                CallEventListeners( VCLEVENT_WINDOW_MOUSEBUTTONUP, (void*)rNEvt.GetMouseEvent() );
+                CallEventListeners( VCLEVENT_WINDOW_MOUSEBUTTONUP, const_cast<MouseEvent *>(rNEvt.GetMouseEvent()) );
             else
             {
                 MouseEvent aMouseEvent = ImplTranslateMouseEvent( *rNEvt.GetMouseEvent(), rNEvt.GetWindow(), this );
@@ -386,7 +386,7 @@ void Window::ImplNotifyKeyMouseCommandEventListeners( NotifyEvent& rNEvt )
         if ( mpWindowImpl->mbCompoundControl || ( rNEvt.GetWindow() == this ) )
         {
             if ( rNEvt.GetWindow() == this )
-                CallEventListeners( VCLEVENT_WINDOW_MOUSEBUTTONDOWN, (void*)rNEvt.GetMouseEvent() );
+                CallEventListeners( VCLEVENT_WINDOW_MOUSEBUTTONDOWN, const_cast<MouseEvent *>(rNEvt.GetMouseEvent()) );
             else
             {
                 MouseEvent aMouseEvent = ImplTranslateMouseEvent( *rNEvt.GetMouseEvent(), rNEvt.GetWindow(), this );
@@ -397,12 +397,12 @@ void Window::ImplNotifyKeyMouseCommandEventListeners( NotifyEvent& rNEvt )
     else if( rNEvt.GetType() == MouseNotifyEvent::KEYINPUT )
     {
         if ( mpWindowImpl->mbCompoundControl || ( rNEvt.GetWindow() == this ) )
-            CallEventListeners( VCLEVENT_WINDOW_KEYINPUT, (void*)rNEvt.GetKeyEvent() );
+            CallEventListeners( VCLEVENT_WINDOW_KEYINPUT, const_cast<KeyEvent *>(rNEvt.GetKeyEvent()) );
     }
     else if( rNEvt.GetType() == MouseNotifyEvent::KEYUP )
     {
         if ( mpWindowImpl->mbCompoundControl || ( rNEvt.GetWindow() == this ) )
-            CallEventListeners( VCLEVENT_WINDOW_KEYUP, (void*)rNEvt.GetKeyEvent() );
+            CallEventListeners( VCLEVENT_WINDOW_KEYUP, const_cast<KeyEvent *>(rNEvt.GetKeyEvent()) );
     }
 
     if ( aDelData.IsDead() )
diff --git a/vcl/source/window/paint.cxx b/vcl/source/window/paint.cxx
index ad7fb721728b..1dcf72a1a3b9 100644
--- a/vcl/source/window/paint.cxx
+++ b/vcl/source/window/paint.cxx
@@ -961,7 +961,7 @@ void Window::PostPaint(vcl::RenderContext& /*rRenderContext*/)
 
 void Window::Paint(vcl::RenderContext& /*rRenderContext*/, const Rectangle& rRect)
 {
-    CallEventListeners(VCLEVENT_WINDOW_PAINT, (void*)&rRect);
+    CallEventListeners(VCLEVENT_WINDOW_PAINT, const_cast<Rectangle *>(&rRect));
 }
 
 void Window::SetPaintTransparent( bool bTransparent )
diff --git a/vcl/source/window/resource.cxx b/vcl/source/window/resource.cxx
index 9c8ce32f15e9..6c3aeb3f90d6 100644
--- a/vcl/source/window/resource.cxx
+++ b/vcl/source/window/resource.cxx
@@ -42,7 +42,7 @@ WinBits Window::ImplInitRes( const ResId& rResId )
 
     char* pRes = static_cast<char*>(GetClassRes());
     pRes += 8;
-    sal_uInt32 nStyle = (sal_uInt32)GetLongRes( (void*)pRes );
+    sal_uInt32 nStyle = (sal_uInt32)GetLongRes( static_cast<void*>(pRes) );
     rResId.SetWinBits( nStyle );
     return nStyle;
 }
diff --git a/vcl/source/window/syswin.cxx b/vcl/source/window/syswin.cxx
index 4e46c8acb74c..c08a60168a93 100644
--- a/vcl/source/window/syswin.cxx
+++ b/vcl/source/window/syswin.cxx
@@ -910,14 +910,14 @@ void SystemWindow::SetMenuBar(MenuBar* pMenuBar, const css::uno::Reference<css::
                 pOldWindow = NULL;
             if ( pOldWindow )
             {
-                CallEventListeners( VCLEVENT_WINDOW_MENUBARREMOVED, (void*) pOldMenuBar );
+                CallEventListeners( VCLEVENT_WINDOW_MENUBARREMOVED, static_cast<void*>(pOldMenuBar) );
                 pOldWindow->SetAccessible( ::com::sun::star::uno::Reference< ::com::sun::star::accessibility::XAccessible >() );
             }
             if ( pMenuBar )
             {
                 DBG_ASSERT( !pMenuBar->pWindow, "SystemWindow::SetMenuBar() - MenuBars can only set in one SystemWindow at time" );
                 static_cast<ImplBorderWindow*>(mpWindowImpl->mpBorderWindow.get())->SetMenuBarWindow( pNewWindow = MenuBar::ImplCreate( mpWindowImpl->mpBorderWindow, pOldWindow, pMenuBar, rFrame));
-                CallEventListeners( VCLEVENT_WINDOW_MENUBARADDED, (void*) pMenuBar );
+                CallEventListeners( VCLEVENT_WINDOW_MENUBARADDED, static_cast<void*>(pMenuBar) );
             }
             else
                 static_cast<ImplBorderWindow*>(mpWindowImpl->mpBorderWindow.get())->SetMenuBarWindow( NULL );
diff --git a/vcl/source/window/window.cxx b/vcl/source/window/window.cxx
index 77087aa27f89..497fc42de8bf 100644
--- a/vcl/source/window/window.cxx
+++ b/vcl/source/window/window.cxx
@@ -904,7 +904,7 @@ void Window::ImplInit( vcl::Window* pParent, WinBits nStyle, SystemParentData* p
             nStyle |= WB_BORDER;
         }
         VclPtrInstance<ImplBorderWindow> pBorderWin( pParent, nStyle & (WB_BORDER | WB_DIALOGCONTROL | WB_NODIALOGCONTROL | WB_NEEDSFOCUS), nBorderTypeStyle );
-        ((vcl::Window*)pBorderWin)->mpWindowImpl->mpClientWindow = this;
+        static_cast<vcl::Window*>(pBorderWin)->mpWindowImpl->mpClientWindow = this;
         pBorderWin->GetBorder( mpWindowImpl->mnLeftBorder, mpWindowImpl->mnTopBorder, mpWindowImpl->mnRightBorder, mpWindowImpl->mnBottomBorder );
         mpWindowImpl->mpBorderWindow  = pBorderWin;
         pParent = mpWindowImpl->mpBorderWindow;
@@ -2001,7 +2001,7 @@ void Window::RequestHelp( const HelpEvent& rHEvt )
 
 void Window::Command( const CommandEvent& rCEvt )
 {
-    CallEventListeners( VCLEVENT_WINDOW_COMMAND, (void*)&rCEvt );
+    CallEventListeners( VCLEVENT_WINDOW_COMMAND, const_cast<CommandEvent *>(&rCEvt) );
 
     NotifyEvent aNEvt( MouseNotifyEvent::COMMAND, this, &rCEvt );
     if ( !CompatNotify( aNEvt ) )
diff --git a/vcl/unx/generic/app/i18n_cb.cxx b/vcl/unx/generic/app/i18n_cb.cxx
index 4f3b910ee6af..8de3dc88bc52 100644
--- a/vcl/unx/generic/app/i18n_cb.cxx
+++ b/vcl/unx/generic/app/i18n_cb.cxx
@@ -62,7 +62,7 @@ PreeditDoneCallback ( XIC, XPointer client_data, XPointer )
      if (pPreeditData->eState == ePreeditStatusActive )
     {
         if( pPreeditData->pFrame )
-            pPreeditData->pFrame->CallCallback( SALEVENT_ENDEXTTEXTINPUT, (void*)NULL );
+            pPreeditData->pFrame->CallCallback( SALEVENT_ENDEXTTEXTINPUT, nullptr );
     }
     pPreeditData->eState = ePreeditStatusStartPending;
 }
@@ -94,11 +94,11 @@ Preedit_DeleteText(preedit_text_t *ptext, int from, int howmuch)
         if (to < (int)ptext->nLength)
     {
         // cut out of the middle of the text
-        memmove( (void*)(ptext->pUnicodeBuffer + from),
-                (void*)(ptext->pUnicodeBuffer + to),
+        memmove( static_cast<void*>(ptext->pUnicodeBuffer + from),
+                static_cast<void*>(ptext->pUnicodeBuffer + to),
                 (ptext->nLength - to) * sizeof(sal_Unicode));
-        memmove( (void*)(ptext->pCharStyle + from),
-                (void*)(ptext->pCharStyle + to),
+        memmove( static_cast<void*>(ptext->pCharStyle + from),
+                static_cast<void*>(ptext->pCharStyle + to),
                 (ptext->nLength - to) * sizeof(XIMFeedback));
         ptext->nLength -= howmuch;
       }
@@ -127,9 +127,9 @@ enlarge_buffer ( preedit_text_t *ptext, int nnewlimit )
         nnewsize *= 2;
 
       ptext->nSize = nnewsize;
-      ptext->pUnicodeBuffer = static_cast<sal_Unicode*>(realloc((void*)ptext->pUnicodeBuffer,
+      ptext->pUnicodeBuffer = static_cast<sal_Unicode*>(realloc(static_cast<void*>(ptext->pUnicodeBuffer),
             nnewsize * sizeof(sal_Unicode)));
-      ptext->pCharStyle = static_cast<XIMFeedback*>(realloc((void*)ptext->pCharStyle,
+      ptext->pCharStyle = static_cast<XIMFeedback*>(realloc(static_cast<void*>(ptext->pCharStyle),
             nnewsize * sizeof(XIMFeedback)));
 }
 
@@ -203,19 +203,19 @@ Preedit_InsertText(preedit_text_t *pText, XIMText *pInsertText, int where)
     int to      = where + nInsertTextLength;
     int howmany = pText->nLength - where;
 
-    memmove((void*)(pText->pUnicodeBuffer + to),
-          (void*)(pText->pUnicodeBuffer + from),
+    memmove(static_cast<void*>(pText->pUnicodeBuffer + to),
+          static_cast<void*>(pText->pUnicodeBuffer + from),
             howmany * sizeof(sal_Unicode));
-    memmove((void*)(pText->pCharStyle + to),
-            (void*)(pText->pCharStyle + from),
+    memmove(static_cast<void*>(pText->pCharStyle + to),
+            static_cast<void*>(pText->pCharStyle + from),
             howmany * sizeof(XIMFeedback));
 
     to = from;
     howmany = nInsertTextLength;
 
-    memcpy((void*)(pText->pUnicodeBuffer + to), (void*)pInsertTextString,
+    memcpy(static_cast<void*>(pText->pUnicodeBuffer + to), static_cast<void*>(pInsertTextString),
            howmany * sizeof(sal_Unicode));
-    memcpy((void*)(pText->pCharStyle + to), (void*)pInsertTextCharStyle,
+    memcpy(static_cast<void*>(pText->pCharStyle + to), static_cast<void*>(pInsertTextCharStyle),
             howmany * sizeof(XIMFeedback));
 
     pText->nLength += howmany;
@@ -262,7 +262,7 @@ Preedit_FeedbackToSAL ( XIMFeedback* pfeedback, int nlength, std::vector<sal_uIn
         psalattr = &rSalAttr[0];
     }
       else
-        return (sal_uInt16*)NULL;
+        return nullptr;
 
       for (int npos = 0; npos < nlength; npos++)
     {
@@ -370,9 +370,9 @@ PreeditDrawCallback(XIC ic, XPointer client_data,
     pPreeditData->aInputEv.mbOnlyCursor = False;
 
     if ( pPreeditData->eState == ePreeditStatusActive && pPreeditData->pFrame )
-        pPreeditData->pFrame->CallCallback(SALEVENT_EXTTEXTINPUT, (void*)&pPreeditData->aInputEv);
+        pPreeditData->pFrame->CallCallback(SALEVENT_EXTTEXTINPUT, static_cast<void*>(&pPreeditData->aInputEv));
     if (pPreeditData->aText.nLength == 0 && pPreeditData->pFrame )
-        pPreeditData->pFrame->CallCallback( SALEVENT_ENDEXTTEXTINPUT, (void*)NULL );
+        pPreeditData->pFrame->CallCallback( SALEVENT_ENDEXTTEXTINPUT, nullptr );
 
     if (pPreeditData->aText.nLength == 0)
         pPreeditData->eState = ePreeditStatusStartPending;
@@ -390,7 +390,7 @@ GetPreeditSpotLocation(XIC ic, XPointer client_data)
     preedit_data_t* pPreeditData = reinterpret_cast<preedit_data_t*>(client_data);
 
     if( pPreeditData->pFrame )
-        pPreeditData->pFrame->CallCallback(SALEVENT_EXTTEXTINPUTPOS, (void*)&mPosEvent);
+        pPreeditData->pFrame->CallCallback(SALEVENT_EXTTEXTINPUTPOS, static_cast<void*>(&mPosEvent));
 
     XPoint point;
     point.x = mPosEvent.mnX + mPosEvent.mnWidth;
diff --git a/vcl/unx/generic/app/i18n_ic.cxx b/vcl/unx/generic/app/i18n_ic.cxx
index 2bd02caa5b84..c96b5adfdf5f 100644
--- a/vcl/unx/generic/app/i18n_ic.cxx
+++ b/vcl/unx/generic/app/i18n_ic.cxx
@@ -50,7 +50,7 @@ static void sendEmptyCommit( SalFrame* pFrame )
     aEmptyEv.mnCursorPos        = 0;
     aEmptyEv.mnCursorFlags      = 0;
     aEmptyEv.mbOnlyCursor       = False;
-    pFrame->CallCallback( SALEVENT_EXTTEXTINPUT, (void*)&aEmptyEv );
+    pFrame->CallCallback( SALEVENT_EXTTEXTINPUT, static_cast<void*>(&aEmptyEv) );
     if( ! aDel.isDeleted() )
         pFrame->CallCallback( SALEVENT_ENDEXTTEXTINPUT, NULL );
 }
@@ -128,7 +128,7 @@ get_font_set( Display *p_display )
 
 SalI18N_InputContext::SalI18N_InputContext ( SalFrame *pFrame ) :
         mbUseable( True ),
-        maContext( (XIC)NULL ),
+        maContext( nullptr ),
         mnSupportedStatusStyle(
                                XIMStatusCallbacks   |
                                XIMStatusNothing     |
@@ -262,7 +262,7 @@ SalI18N_InputContext::SalI18N_InputContext ( SalFrame *pFrame ) :
             {
                 // spot location
                 SalExtTextInputPosEvent aPosEvent;
-                pFrame->CallCallback(SALEVENT_EXTTEXTINPUTPOS, (void*)&aPosEvent);
+                pFrame->CallCallback(SALEVENT_EXTTEXTINPUTPOS, static_cast<void*>(&aPosEvent));
 
                 static XPoint aSpot;
                 aSpot.x = aPosEvent.mnX + aPosEvent.mnWidth;
@@ -356,7 +356,7 @@ SalI18N_InputContext::SalI18N_InputContext ( SalFrame *pFrame ) :
 
     if ( maContext != NULL)
     {
-        maDestroyCallback.callback    = (XIMProc)IC_IMDestroyCallback;
+        maDestroyCallback.callback    = static_cast<XIMProc>(IC_IMDestroyCallback);
         maDestroyCallback.client_data = reinterpret_cast<XPointer>(this);
         XSetICValues( maContext,
                       XNDestroyCallback,      &maDestroyCallback,
@@ -541,8 +541,8 @@ SalI18N_InputContext::CommitKeyEvent(sal_Unicode* pText, sal_Size nLength)
         aTextEvent.mnCursorFlags = 0;
         aTextEvent.mbOnlyCursor  = False;
 
-        maClientData.pFrame->CallCallback(SALEVENT_EXTTEXTINPUT,    (void*)&aTextEvent);
-        maClientData.pFrame->CallCallback(SALEVENT_ENDEXTTEXTINPUT, (void*)NULL);
+        maClientData.pFrame->CallCallback(SALEVENT_EXTTEXTINPUT,    static_cast<void*>(&aTextEvent));
+        maClientData.pFrame->CallCallback(SALEVENT_ENDEXTTEXTINPUT, nullptr);
     }
 #if OSL_DEBUG_LEVEL > 1
     else
@@ -559,7 +559,7 @@ SalI18N_InputContext::UpdateSpotLocation()
         return -1;
 
     SalExtTextInputPosEvent aPosEvent;
-    maClientData.pFrame->CallCallback(SALEVENT_EXTTEXTINPUTPOS, (void*)&aPosEvent);
+    maClientData.pFrame->CallCallback(SALEVENT_EXTTEXTINPUTPOS, static_cast<void*>(&aPosEvent));
 
     XPoint aSpot;
     aSpot.x = aPosEvent.mnX + aPosEvent.mnWidth;
diff --git a/vcl/unx/generic/app/i18n_im.cxx b/vcl/unx/generic/app/i18n_im.cxx
index ce8dee888aae..d9dfc831e6bb 100644
--- a/vcl/unx/generic/app/i18n_im.cxx
+++ b/vcl/unx/generic/app/i18n_im.cxx
@@ -245,11 +245,11 @@ SalI18N_InputMethod::PosixLocale()
 
 SalI18N_InputMethod::SalI18N_InputMethod( )
     : mbUseable( bUseInputMethodDefault )
-    , maMethod( (XIM)NULL )
-    , mpStyles( (XIMStyles*)NULL )
+    , maMethod( nullptr )
+    , mpStyles( nullptr )
 {
-    maDestroyCallback.callback = (XIMProc)NULL;
-    maDestroyCallback.client_data = (XPointer)NULL;
+    maDestroyCallback.callback = nullptr;
+    maDestroyCallback.client_data = nullptr;
     const char *pUseInputMethod = getenv( "SAL_USEINPUTMETHOD" );
     if ( pUseInputMethod != NULL )
         mbUseable = pUseInputMethod[0] != '\0' ;
@@ -338,7 +338,7 @@ SalI18N_InputMethod::CreateMethod ( Display *pDisplay )
     {
         maMethod = XOpenIM(pDisplay, NULL, NULL, NULL);
 
-        if ((maMethod == (XIM)NULL) && (getenv("XMODIFIERS") != NULL))
+        if ((maMethod == nullptr) && (getenv("XMODIFIERS") != NULL))
         {
                 OUString envVar("XMODIFIERS");
                 osl_clearEnvironment(envVar.pData);
@@ -346,7 +346,7 @@ SalI18N_InputMethod::CreateMethod ( Display *pDisplay )
                 maMethod = XOpenIM(pDisplay, NULL, NULL, NULL);
         }
 
-        if ( maMethod != (XIM)NULL )
+        if ( maMethod != nullptr )
         {
             if (   XGetIMValues(maMethod, XNQueryInputStyle, &mpStyles, NULL)
                 != NULL)
@@ -367,7 +367,7 @@ SalI18N_InputMethod::CreateMethod ( Display *pDisplay )
         fprintf(stderr, "input method creation failed\n");
     #endif
 
-    maDestroyCallback.callback    = (XIMProc)IM_IMDestroyCallback;
+    maDestroyCallback.callback    = static_cast<XIMProc>(IM_IMDestroyCallback);
     maDestroyCallback.client_data = reinterpret_cast<XPointer>(this);
     if (mbUseable && maMethod != NULL)
         XSetIMValues(maMethod, XNDestroyCallback, &maDestroyCallback, NULL);
diff --git a/vcl/unx/generic/app/i18n_keysym.cxx b/vcl/unx/generic/app/i18n_keysym.cxx
index 2ce0e08ef439..f464c498e689 100644
--- a/vcl/unx/generic/app/i18n_keysym.cxx
+++ b/vcl/unx/generic/app/i18n_keysym.cxx
@@ -307,11 +307,11 @@ const keymap_t* p_keymap[INITIAL_KEYMAPS] = {
     &keymap00, &keymap01, &keymap02, &keymap03,                         /* 00 -- 03 */
     &keymap04, &keymap05, &keymap06, &keymap07,                         /* 04 -- 07 */
     &keymap08, &keymap09, &keymap10, &keymap11,                         /* 08 -- 11 */
-    &keymap12, &keymap13, &keymap14, (keymap_t*)NULL,                   /* 12 -- 15 */
-    (keymap_t*)NULL, (keymap_t*)NULL, (keymap_t*)NULL, &keymap19,       /* 16 -- 19 */
-    (keymap_t*)NULL, (keymap_t*)NULL, (keymap_t*)NULL, (keymap_t*)NULL, /* 20 -- 23 */
-    (keymap_t*)NULL, (keymap_t*)NULL, (keymap_t*)NULL, (keymap_t*)NULL, /* 24 -- 27 */
-    (keymap_t*)NULL, (keymap_t*)NULL, (keymap_t*)NULL, (keymap_t*)NULL, /* 28 -- 31 */
+    &keymap12, &keymap13, &keymap14, nullptr,                   /* 12 -- 15 */
+    nullptr, nullptr, nullptr, &keymap19,       /* 16 -- 19 */
+    nullptr, nullptr, nullptr, nullptr, /* 20 -- 23 */
+    nullptr, nullptr, nullptr, nullptr, /* 24 -- 27 */
+    nullptr, nullptr, nullptr, nullptr, /* 28 -- 31 */
     &keymap32                                                           /* 32 */
 };
 
diff --git a/vcl/unx/generic/app/i18n_status.cxx b/vcl/unx/generic/app/i18n_status.cxx
index 36f0ebcf6254..bb77762ad2d1 100644
--- a/vcl/unx/generic/app/i18n_status.cxx
+++ b/vcl/unx/generic/app/i18n_status.cxx
@@ -198,7 +198,7 @@ Point XIMStatusWindow::updatePosition()
         const SystemEnvData* pParentEnvData = m_pLastParent->GetSystemData();
 
         SalExtTextInputPosEvent aPosEvent;
-        m_pLastParent->CallCallback( SALEVENT_EXTTEXTINPUTPOS, (void*)&aPosEvent );
+        m_pLastParent->CallCallback( SALEVENT_EXTTEXTINPUTPOS, static_cast<void*>(&aPosEvent) );
         int x, y;
         ::Window aChild;
         XTranslateCoordinates( static_cast<Display*>(pParentEnvData->pDisplay),
diff --git a/vcl/unx/generic/app/saldisp.cxx b/vcl/unx/generic/app/saldisp.cxx
index d95e30bca6d7..b8e266cb9ef3 100644
--- a/vcl/unx/generic/app/saldisp.cxx
+++ b/vcl/unx/generic/app/saldisp.cxx
@@ -559,7 +559,7 @@ void SalDisplay::Init()
     for( Cursor & aCsr : aPointerCache_ )
         aCsr = None;
 
-    mpFactory           = (AttributeProvider*)NULL;
+    mpFactory           = nullptr;
     m_bXinerama         = false;
 
     int nDisplayScreens = ScreenCount( pDisp_ );
@@ -2354,7 +2354,7 @@ SalVisual::SalVisual()
 
 SalVisual::SalVisual( const XVisualInfo* pXVI )
 {
-    *(XVisualInfo*)this = *pXVI;
+    *static_cast<XVisualInfo*>(this) = *pXVI;
     if( GetClass() == TrueColor )
     {
         nRedShift_      = sal_Shift( red_mask );
diff --git a/vcl/unx/generic/app/salinst.cxx b/vcl/unx/generic/app/salinst.cxx
index 9c00f6d5a468..47b64290e40e 100644
--- a/vcl/unx/generic/app/salinst.cxx
+++ b/vcl/unx/generic/app/salinst.cxx
@@ -162,7 +162,7 @@ void* X11SalInstance::GetConnectionIdentifier( ConnectionIdentifierType& rReturn
     static const char* pDisplay = getenv( "DISPLAY" );
     rReturnedType   = AsciiCString;
     rReturnedBytes  = pDisplay ? strlen( pDisplay )+1 : 1;
-    return pDisplay ? (void*)pDisplay : (void*)"";
+    return pDisplay ? const_cast<char *>(pDisplay) : const_cast<char *>("");
 }
 
 SalFrame *X11SalInstance::CreateFrame( SalFrame *pParent, sal_uLong nSalFrameStyle )
diff --git a/vcl/unx/generic/dtrans/X11_service.cxx b/vcl/unx/generic/dtrans/X11_service.cxx
index 360b29d087ad..3b8f45bb6991 100644
--- a/vcl/unx/generic/dtrans/X11_service.cxx
+++ b/vcl/unx/generic/dtrans/X11_service.cxx
@@ -85,12 +85,12 @@ css::uno::Reference< XInterface > X11SalInstance::CreateClipboard( const Sequenc
 
 css::uno::Reference< XInterface > X11SalInstance::CreateDragSource()
 {
-    return css::uno::Reference < XInterface >( ( OWeakObject * ) new SelectionManagerHolder() );
+    return css::uno::Reference < XInterface >( static_cast<OWeakObject *>(new SelectionManagerHolder()) );
 }
 
 css::uno::Reference< XInterface > X11SalInstance::CreateDropTarget()
 {
-    return css::uno::Reference < XInterface >( ( OWeakObject * ) new DropTarget() );
+    return css::uno::Reference < XInterface >( static_cast<OWeakObject *>(new DropTarget()) );
 }
 
 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/vcl/unx/generic/window/salframe.cxx b/vcl/unx/generic/window/salframe.cxx
index 1591ffe520ef..d2511917ee85 100644
--- a/vcl/unx/generic/window/salframe.cxx
+++ b/vcl/unx/generic/window/salframe.cxx
@@ -3041,7 +3041,7 @@ void X11SalFrame::beginUnicodeSequence()
         aEv.mnCursorFlags   = 0;
         aEv.mbOnlyCursor    = false;
 
-        CallCallback(SALEVENT_EXTTEXTINPUT, (void*)&aEv);
+        CallCallback(SALEVENT_EXTTEXTINPUT, static_cast<void*>(&aEv));
     }
 }
 
@@ -3070,7 +3070,7 @@ bool X11SalFrame::appendUnicodeSequence( sal_Unicode c )
             aEv.mnCursorFlags   = 0;
             aEv.mbOnlyCursor    = false;
 
-            CallCallback(SALEVENT_EXTTEXTINPUT, (void*)&aEv);
+            CallCallback(SALEVENT_EXTTEXTINPUT, static_cast<void*>(&aEv));
             bRet = true;
         }
         else
@@ -3101,7 +3101,7 @@ bool X11SalFrame::endUnicodeSequence()
             aEv.mnCursorPos     = 0;
             aEv.mnCursorFlags   = 0;
             aEv.mbOnlyCursor    = false;
-            CallCallback(SALEVENT_EXTTEXTINPUT, (void*)&aEv);
+            CallCallback(SALEVENT_EXTTEXTINPUT, static_cast<void*>(&aEv));
         }
     }
     bool bWasInput = !rSeq.isEmpty();
diff --git a/vcl/unx/gtk/a11y/atkcomponent.cxx b/vcl/unx/gtk/a11y/atkcomponent.cxx
index f40cfe004733..08fd93afa6a7 100644
--- a/vcl/unx/gtk/a11y/atkcomponent.cxx
+++ b/vcl/unx/gtk/a11y/atkcomponent.cxx
@@ -321,14 +321,14 @@ component_wrapper_add_focus_handler (AtkComponent    *component,
     signal_id = g_signal_lookup( "focus-event", ATK_TYPE_OBJECT );
 
     ret = g_signal_handler_find( component, match_type, signal_id, 0, NULL,
-                                 (gpointer) &handler, NULL);
+                                 static_cast<gpointer>(&handler), NULL);
     if (!ret)
     {
         return g_signal_connect_closure_by_id (component,
                                                signal_id, 0,
                                                g_cclosure_new (
                                                G_CALLBACK (handler), NULL,
-                                               (GClosureNotify) NULL),
+                                               nullptr),
                                                FALSE);
     }
     else
diff --git a/vcl/unx/gtk/a11y/atkfactory.cxx b/vcl/unx/gtk/a11y/atkfactory.cxx
index fb0cc7741799..581f4d0091ac 100644
--- a/vcl/unx/gtk/a11y/atkfactory.cxx
+++ b/vcl/unx/gtk/a11y/atkfactory.cxx
@@ -58,14 +58,14 @@ atk_noop_object_wrapper_get_type()
         static const GTypeInfo typeInfo =
         {
             sizeof (AtkNoOpObjectClass),
-            (GBaseInitFunc) NULL,
-            (GBaseFinalizeFunc) NULL,
+            nullptr,
+            nullptr,
             reinterpret_cast<GClassInitFunc>(atk_noop_object_wrapper_class_init),
-            (GClassFinalizeFunc) NULL,
+            nullptr,
             NULL,
             sizeof (AtkObjectWrapper),
             0,
-            (GInstanceInitFunc) NULL,
+            nullptr,
             NULL
         } ;
 
diff --git a/vcl/unx/gtk/a11y/atkhypertext.cxx b/vcl/unx/gtk/a11y/atkhypertext.cxx
index e11f4987b6e5..47872486a55a 100644
--- a/vcl/unx/gtk/a11y/atkhypertext.cxx
+++ b/vcl/unx/gtk/a11y/atkhypertext.cxx
@@ -173,7 +173,7 @@ hyper_link_get_type()
 
         static const GInterfaceInfo atk_action_info = {
             reinterpret_cast<GInterfaceInitFunc>(actionIfaceInit),
-            (GInterfaceFinalizeFunc) NULL,
+            nullptr,
             NULL
         };
 
diff --git a/vcl/unx/gtk/a11y/atkregistry.cxx b/vcl/unx/gtk/a11y/atkregistry.cxx
index 10b76c3bffba..ee34ee1209c5 100644
--- a/vcl/unx/gtk/a11y/atkregistry.cxx
+++ b/vcl/unx/gtk/a11y/atkregistry.cxx
@@ -32,7 +32,7 @@ ooo_wrapper_registry_get(const Reference< XAccessible >& rxAccessible)
     if( uno_to_gobject )
     {
         gpointer cached =
-            g_hash_table_lookup(uno_to_gobject, (gpointer) rxAccessible.get());
+            g_hash_table_lookup(uno_to_gobject, static_cast<gpointer>(rxAccessible.get()));
 
         if( cached )
             return ATK_OBJECT( cached );
@@ -49,7 +49,7 @@ ooo_wrapper_registry_add(const Reference< XAccessible >& rxAccessible, AtkObject
    if( !uno_to_gobject )
         uno_to_gobject = g_hash_table_new (NULL, NULL);
 
-   g_hash_table_insert( uno_to_gobject, (gpointer) rxAccessible.get(), obj );
+   g_hash_table_insert( uno_to_gobject, static_cast<gpointer>(rxAccessible.get()), obj );
 }
 
 /*****************************************************************************/
@@ -58,7 +58,7 @@ void
 ooo_wrapper_registry_remove(XAccessible *pAccessible)
 {
     if( uno_to_gobject )
-        g_hash_table_remove( uno_to_gobject, (gpointer) pAccessible );
+        g_hash_table_remove( uno_to_gobject, static_cast<gpointer>(pAccessible) );
 }
 
 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/vcl/unx/gtk/a11y/atktextattributes.cxx b/vcl/unx/gtk/a11y/atktextattributes.cxx
index 283ff59db9e8..484336773906 100644
--- a/vcl/unx/gtk/a11y/atktextattributes.cxx
+++ b/vcl/unx/gtk/a11y/atktextattributes.cxx
@@ -988,7 +988,7 @@ TabStopList2String( const uno::Any& rAny, bool default_tabs )
             if( ret )
             {
                 gchar * old_tab_str = ret;
-                ret = g_strconcat(old_tab_str, " ", tab_str, (const char*)NULL);
+                ret = g_strconcat(old_tab_str, " ", tab_str, nullptr);
                 g_free( old_tab_str );
             }
             else
diff --git a/vcl/unx/gtk/a11y/atkutil.cxx b/vcl/unx/gtk/a11y/atkutil.cxx
index 03f08e4f30c6..cc2fe84c39bd 100644
--- a/vcl/unx/gtk/a11y/atkutil.cxx
+++ b/vcl/unx/gtk/a11y/atkutil.cxx
@@ -742,14 +742,14 @@ ooo_atk_util_get_type()
         static const GTypeInfo typeInfo =
         {
             static_cast<guint16>(type_query.class_size),
-            (GBaseInitFunc) NULL,
-            (GBaseFinalizeFunc) NULL,
+            nullptr,
+            nullptr,
             reinterpret_cast<GClassInitFunc>(ooo_atk_util_class_init),
-            (GClassFinalizeFunc) NULL,
+            nullptr,
             NULL,
             static_cast<guint16>(type_query.instance_size),
             0,
-            (GInstanceInitFunc) NULL,
+            nullptr,
             NULL
         } ;
 
diff --git a/vcl/unx/gtk/a11y/atkwindow.cxx b/vcl/unx/gtk/a11y/atkwindow.cxx
index b845389c6437..635645f234e3 100644
--- a/vcl/unx/gtk/a11y/atkwindow.cxx
+++ b/vcl/unx/gtk/a11y/atkwindow.cxx
@@ -293,14 +293,14 @@ ooo_window_wrapper_get_type()
         static const GTypeInfo typeInfo =
         {
             static_cast<guint16>(type_query.class_size),
-            (GBaseInitFunc) NULL,
-            (GBaseFinalizeFunc) NULL,
+            nullptr,
+            nullptr,
             reinterpret_cast<GClassInitFunc>(ooo_window_wrapper_class_init),
-            (GClassFinalizeFunc) NULL,
+            nullptr,
             NULL,
             static_cast<guint16>(type_query.instance_size),
             0,
-            (GInstanceInitFunc) NULL,
+            nullptr,
             NULL
         } ;
 
diff --git a/vcl/unx/gtk/a11y/atkwrapper.cxx b/vcl/unx/gtk/a11y/atkwrapper.cxx
index 30cfa9c05074..ad27b6a3c6ff 100644
--- a/vcl/unx/gtk/a11y/atkwrapper.cxx
+++ b/vcl/unx/gtk/a11y/atkwrapper.cxx
@@ -665,10 +665,10 @@ atk_object_wrapper_get_type()
       static const GTypeInfo typeInfo =
       {
         sizeof (AtkObjectWrapperClass),
-        (GBaseInitFunc) NULL,
-        (GBaseFinalizeFunc) NULL,
+        nullptr,
+        nullptr,
         reinterpret_cast<GClassInitFunc>(atk_object_wrapper_class_init),
-        (GClassFinalizeFunc) NULL,
+        nullptr,
         NULL,
         sizeof (AtkObjectWrapper),
         0,
diff --git a/vcl/unx/gtk/app/gtkdata.cxx b/vcl/unx/gtk/app/gtkdata.cxx
index df1546ac9e43..df4470ba09ba 100644
--- a/vcl/unx/gtk/app/gtkdata.cxx
+++ b/vcl/unx/gtk/app/gtkdata.cxx
@@ -964,7 +964,7 @@ void GtkData::PostUserEvent()
         g_source_set_priority (m_pUserEvent, G_PRIORITY_HIGH);
         g_source_set_can_recurse (m_pUserEvent, TRUE);
         g_source_set_callback (m_pUserEvent, call_userEventFn,
-                               (gpointer) this, NULL);
+                               static_cast<gpointer>(this), NULL);
         g_source_attach (m_pUserEvent, g_main_context_default ());
     }
 }
diff --git a/vcl/unx/gtk/fpicker/SalGtkFilePicker.cxx b/vcl/unx/gtk/fpicker/SalGtkFilePicker.cxx
index 6c98ca6f72bf..d6e082fd4eb4 100644
--- a/vcl/unx/gtk/fpicker/SalGtkFilePicker.cxx
+++ b/vcl/unx/gtk/fpicker/SalGtkFilePicker.cxx
@@ -122,7 +122,7 @@ SalGtkFilePicker::SalGtkFilePicker( const uno::Reference< uno::XComponentContext
             GTK_FILE_CHOOSER_ACTION_OPEN,
             GTK_STOCK_CANCEL, GTK_RESPONSE_CANCEL,
             GTK_STOCK_OPEN, GTK_RESPONSE_ACCEPT,
-            (char *)NULL );
+            nullptr );
 
     gtk_dialog_set_default_response( GTK_DIALOG (m_pDialog), GTK_RESPONSE_ACCEPT );
 
@@ -240,7 +240,7 @@ SalGtkFilePicker::SalGtkFilePicker( const uno::Reference< uno::XComponentContext
         cell = gtk_cell_renderer_text_new ();
         gtk_tree_view_column_set_expand (column, true);
         gtk_tree_view_column_pack_start (column, cell, false);
-        gtk_tree_view_column_set_attributes (column, cell, "text", i, (char *)NULL);
+        gtk_tree_view_column_set_attributes (column, cell, "text", i, nullptr);
         gtk_tree_view_append_column (GTK_TREE_VIEW(m_pFilterView), column);
     }
 
@@ -272,7 +272,7 @@ SalGtkFilePicker::SalGtkFilePicker( const uno::Reference< uno::XComponentContext
     pango_layout_get_pixel_extents (layout, NULL, &row_height);
     g_object_unref (layout);
 
-    g_object_get (cell, "ypad", &ypad, (char *)NULL);
+    g_object_get (cell, "ypad", &ypad, nullptr);
     guint height = (row_height.height + 2*ypad) * 5;
     gtk_widget_set_size_request (m_pFilterView, -1, height);
     gtk_widget_set_size_request (m_pPreview, 1, height);
@@ -896,11 +896,11 @@ sal_Int16 SAL_CALL SalGtkFilePicker::execute() throw( uno::RuntimeException, std
 
     mnHID_FolderChange =
         g_signal_connect( GTK_FILE_CHOOSER( m_pDialog ), "current-folder-changed",
-            G_CALLBACK( folder_changed_cb ), ( gpointer )this );
+            G_CALLBACK( folder_changed_cb ), static_cast<gpointer>(this) );
 
     mnHID_SelectionChange =
         g_signal_connect( GTK_FILE_CHOOSER( m_pDialog ), "selection-changed",
-            G_CALLBACK( selection_changed_cb ), ( gpointer )this );
+            G_CALLBACK( selection_changed_cb ), static_cast<gpointer>(this) );
 
     int btn = GTK_RESPONSE_NO;
 
@@ -1352,7 +1352,7 @@ void SAL_CALL SalGtkFilePicker::setLabel( sal_Int16 nControlId, const OUString&
     }
     else if( tType == GTK_TYPE_TOGGLE_BUTTON || tType == GTK_TYPE_BUTTON || tType == GTK_TYPE_LABEL )
         g_object_set( pWidget, "label", aTxt.getStr(),
-                      "use_underline", true, (char *)NULL );
+                      "use_underline", true, nullptr );
     else
         OSL_TRACE("Can't set label on list");
 }
@@ -1535,7 +1535,7 @@ sal_Bool SAL_CALL SalGtkFilePicker::setShowState( sal_Bool bShowState ) throw( u
             {
                 mHID_Preview = g_signal_connect(
                     GTK_FILE_CHOOSER( m_pDialog ), "update-preview",
-                    G_CALLBACK( update_preview_cb ), ( gpointer )this );
+                    G_CALLBACK( update_preview_cb ), static_cast<gpointer>(this) );
             }
             gtk_widget_show( m_pPreview );
         }
@@ -1823,7 +1823,7 @@ GtkFileFilter* SalGtkFilePicker::implAddFilter( const OUString& rFilter, const O
                 gtk_file_filter_add_custom (filter, GTK_FILE_FILTER_URI,
                     case_insensitive_filter,
                     g_strdup( OUStringToOString(aToken, RTL_TEXTENCODING_UTF8).getStr() ),
-                    (GDestroyNotify) g_free );
+                    g_free );
 
                 OSL_TRACE( "fustering with %s", OUStringToOString( aToken, RTL_TEXTENCODING_UTF8 ).getStr());
             }
diff --git a/vcl/unx/gtk/fpicker/SalGtkFolderPicker.cxx b/vcl/unx/gtk/fpicker/SalGtkFolderPicker.cxx
index 0754101b3631..3a2fc6caf93f 100644
--- a/vcl/unx/gtk/fpicker/SalGtkFolderPicker.cxx
+++ b/vcl/unx/gtk/fpicker/SalGtkFolderPicker.cxx
@@ -54,7 +54,7 @@ SalGtkFolderPicker::SalGtkFolderPicker( const uno::Reference< uno::XComponentCon
     m_pDialog = gtk_file_chooser_dialog_new(
         OUStringToOString( getResString( FOLDERPICKER_TITLE ), RTL_TEXTENCODING_UTF8 ).getStr(),
         NULL, GTK_FILE_CHOOSER_ACTION_SELECT_FOLDER, GTK_STOCK_CANCEL, GTK_RESPONSE_CANCEL,
-        GTK_STOCK_OK, GTK_RESPONSE_ACCEPT, (char *)NULL );
+        GTK_STOCK_OK, GTK_RESPONSE_ACCEPT, nullptr );
 
     gtk_dialog_set_default_response( GTK_DIALOG (m_pDialog), GTK_RESPONSE_ACCEPT );
 #if ENABLE_GNOME_VFS || ENABLE_GIO
diff --git a/vcl/unx/gtk/gdi/salnativewidgets-gtk.cxx b/vcl/unx/gtk/gdi/salnativewidgets-gtk.cxx
index a34c143b99f9..463d9fe00ced 100644
--- a/vcl/unx/gtk/gdi/salnativewidgets-gtk.cxx
+++ b/vcl/unx/gtk/gdi/salnativewidgets-gtk.cxx
@@ -529,10 +529,10 @@ void GtkData::initNWF()
     gint vertical_padding = 1;
     gtk_widget_style_get( gWidgetData[0].gMenuWidget,
             "horizontal-padding", &horizontal_padding,
-            (char *)NULL);
+            nullptr);
     gtk_widget_style_get( gWidgetData[0].gMenuWidget,
             "vertical-padding", &vertical_padding,
-            (char *)NULL);
+            nullptr);
     gint xthickness = gWidgetData[0].gMenuWidget->style->xthickness;
     gint ythickness = gWidgetData[0].gMenuWidget->style->ythickness;
     pSVData->maNWFData.mnMenuFormatBorderX = xthickness + horizontal_padding;
@@ -774,7 +774,7 @@ bool GtkSalGraphics::hitTestNativeControl( ControlType        nType,
                               "has-secondary-forward-stepper", &has_forward2,
                               "has-backward-stepper", &has_backward,
                               "has-secondary-backward-stepper", &has_backward2,
-                              (char *)NULL );
+                              nullptr );
         Rectangle aForward;
         Rectangle aBackward;
 
@@ -1199,7 +1199,7 @@ bool GtkSalGraphics::getNativeControlRegion(  ControlType nType,
                 gWidgetData[m_nXScreen].gMenuItemCheckMenuWidget : gWidgetData[m_nXScreen].gMenuItemRadioMenuWidget;
             gtk_widget_style_get( pWidget,
                                   "indicator_size", &indicator_size,
-                                  (char *)NULL );
+                                  nullptr );
             rNativeBoundingRegion = rControlRegion;
             Rectangle aIndicatorRect( Point( 0,
                                              (rControlRegion.GetHeight()-indicator_size)/2),
@@ -1263,7 +1263,7 @@ bool GtkSalGraphics::getNativeControlRegion(  ControlType nType,
                               "indicator_spacing", &indicator_spacing,
                               "focus-line-width", &focusWidth,
                               "focus-padding", &focusPad,
-                              (char *)NULL);
+                              nullptr);
         indicator_size += 2*indicator_spacing + 2*(focusWidth + focusWidth);
         rNativeBoundingRegion = rControlRegion;
         Rectangle aIndicatorRect( Point( 0,
@@ -1295,7 +1295,7 @@ bool GtkSalGraphics::getNativeControlRegion(  ControlType nType,
         gtk_widget_style_get( widget,
                               "slider-width", &slider_width,
                               "slider-length", &slider_length,
-                              (char *)NULL);
+                              nullptr);
         Rectangle aRect( rControlRegion );
         if( nPart == PART_THUMB_HORZ )
         {
@@ -1642,10 +1642,10 @@ bool GtkSalGraphics::NWPaintGTKButtonReal(
     gtk_widget_style_get( gWidgetData[m_nXScreen].gBtnWidget,    "focus-line-width",    &focusWidth,
                                 "focus-padding",     &focusPad,
                                  "interior_focus",    &interiorFocus,
-                                (char *)NULL );
+                                nullptr );
     gtk_widget_style_get( gWidgetData[m_nXScreen].gBtnWidget,
                                 "default_border",    &pBorder,
-                                (char *)NULL );
+                                nullptr );
 
     // Make sure the border values exist, otherwise use some defaults
     if ( pBorder )
@@ -1748,7 +1748,7 @@ static Rectangle NWGetButtonArea( SalX11Screen nScreen,
                                 "focus-padding",     &focusPad,
                                  "interior_focus",    &interiorFocus,
                                 "default_border",    &pBorder,
-                                (char *)NULL );
+                                nullptr );
 
     // Make sure the border values exist, otherwise use some defaults
     if ( pBorder )
@@ -1821,7 +1821,7 @@ bool GtkSalGraphics::NWPaintGTKRadio( GdkDrawable* gdkDrawable,
     NWConvertVCLStateToGTKState( nState, &stateType, &shadowType );
 
     gint indicator_size;
-    gtk_widget_style_get( gWidgetData[m_nXScreen].gRadioWidget, "indicator_size", &indicator_size, (char *)NULL);
+    gtk_widget_style_get( gWidgetData[m_nXScreen].gRadioWidget, "indicator_size", &indicator_size, nullptr);
 
     x = rControlRectangle.Left() + (rControlRectangle.GetWidth()-indicator_size)/2;
     y = rControlRectangle.Top() + (rControlRectangle.GetHeight()-indicator_size)/2;
@@ -1878,7 +1878,7 @@ bool GtkSalGraphics::NWPaintGTKCheck( GdkDrawable* gdkDrawable,
     NWConvertVCLStateToGTKState( nState, &stateType, &shadowType );
 
     gint indicator_size;
-    gtk_widget_style_get( gWidgetData[m_nXScreen].gCheckWidget, "indicator_size", &indicator_size, (char *)NULL);
+    gtk_widget_style_get( gWidgetData[m_nXScreen].gCheckWidget, "indicator_size", &indicator_size, nullptr);
 
     x = rControlRectangle.Left() + (rControlRectangle.GetWidth()-indicator_size)/2;
     y = rControlRectangle.Top() + (rControlRectangle.GetHeight()-indicator_size)/2;
@@ -1976,7 +1976,7 @@ bool GtkSalGraphics::NWPaintGTKScrollbar( ControlType, ControlPart nPart,
                                       "stepper_size", &stepper_size,
                                       "trough_border", &trough_border,
                                       "stepper_spacing", &stepper_spacing,
-                                      "min_slider_length", &min_slider_length, (char *)NULL );
+                                      "min_slider_length", &min_slider_length, nullptr );
     gboolean has_forward;
     gboolean has_forward2;
     gboolean has_backward;
@@ -1985,7 +1985,7 @@ bool GtkSalGraphics::NWPaintGTKScrollbar( ControlType, ControlPart nPart,
     gtk_widget_style_get( gWidgetData[m_nXScreen].gScrollHorizWidget, "has-forward-stepper", &has_forward,
                                       "has-secondary-forward-stepper", &has_forward2,
                                       "has-backward-stepper", &has_backward,
-                                         "has-secondary-backward-stepper", &has_backward2, (char *)NULL );
+                                         "has-secondary-backward-stepper", &has_backward2, nullptr );
     gint magic = trough_border ? 1 : 0;
     gint nFirst = 0;
 
@@ -2253,7 +2253,7 @@ static Rectangle NWGetScrollButtonRect(    SalX11Screen nScreen, ControlPart nPa
                                       "slider-width", &slider_width,
                                       "stepper-size", &stepper_size,
                                       "trough-border", &trough_border,
-                                         "stepper-spacing", &stepper_spacing, (char *)NULL );
+                                         "stepper-spacing", &stepper_spacing, nullptr );
 
     gboolean has_forward;
     gboolean has_forward2;
@@ -2264,7 +2264,7 @@ static Rectangle NWGetScrollButtonRect(    SalX11Screen nScreen, ControlPart nPa
                                       "has-forward-stepper", &has_forward,
                                       "has-secondary-forward-stepper", &has_forward2,
                                       "has-backward-stepper", &has_backward,
-                                         "has-secondary-backward-stepper", &has_backward2, (char *)NULL );
+                                         "has-secondary-backward-stepper", &has_backward2, nullptr );
     gint       buttonWidth;
     gint       buttonHeight;
     Rectangle  buttonRect;
@@ -2369,7 +2369,7 @@ static Rectangle NWGetEditBoxPixmapRect(SalX11Screen nScreen,
     // Grab some entry style attributes
     gtk_widget_style_get( gWidgetData[nScreen].gEditBoxWidget,
                                     "focus-line-width",    &focusWidth,
-                                     "interior-focus",    &interiorFocus, (char *)NULL );
+                                     "interior-focus",    &interiorFocus, nullptr );
 
     if ( !interiorFocus )
     {
@@ -2435,7 +2435,7 @@ static void NWPaintOneEditBox(    SalX11Screen nScreen,
     gtk_widget_style_get( widget,
         "interior-focus",   &bInteriorFocus,
         "focus-line-width", &nFocusLineWidth,
-        (char *)NULL);
+        nullptr);
     if ( !bInteriorFocus )
     {
         xborder += nFocusLineWidth;
@@ -2527,7 +2527,7 @@ bool GtkSalGraphics::NWPaintGTKSpinBox( ControlType nType, ControlPart nPart,
         }
 
         NWSetWidgetState( gWidgetData[m_nXScreen].gSpinButtonWidget, nState, stateType );
-        gtk_widget_style_get( gWidgetData[m_nXScreen].gSpinButtonWidget, "shadow_type", &shadowType, (char *)NULL );
+        gtk_widget_style_get( gWidgetData[m_nXScreen].gSpinButtonWidget, "shadow_type", &shadowType, nullptr );
 
         if ( shadowType != GTK_SHADOW_NONE )
         {
@@ -2734,7 +2734,7 @@ static Rectangle NWGetComboBoxButtonRect( SalX11Screen nScreen,
     // Grab some button style attributes
     gtk_widget_style_get( gWidgetData[nScreen].gDropdownWidget,
                                       "focus-line-width",    &nFocusWidth,
-                                    "focus-padding",     &nFocusPad, (char *)NULL );
+                                    "focus-padding",     &nFocusPad, nullptr );
 
     nArrowWidth = MIN_ARROW_SIZE + (GTK_MISC(gWidgetData[nScreen].gArrowWidget)->xpad * 2);
     nButtonWidth = nArrowWidth +
@@ -2961,7 +2961,7 @@ bool GtkSalGraphics::NWPaintGTKListBox( GdkDrawable* gdkDrawable,
             "interior_focus",    &bInteriorFocus,
             "focus_line_width",    &nFocusLineWidth,
             "focus_padding",    &nFocusPadding,
-            (char *)NULL);
+            nullptr);
     }
 
     for( clipList::const_iterator it = rClipList.begin(); it != rClipList.end(); ++it )
@@ -3200,7 +3200,7 @@ bool GtkSalGraphics::NWPaintGTKMenubar(
         {
             gtk_widget_style_get( gWidgetData[m_nXScreen].gMenuItemMenubarWidget,
                                   "selected_shadow_type", &selected_shadow_type,
-                                  (char *)NULL);
+                                  nullptr);
         }
     }
 
@@ -3291,7 +3291,7 @@ bool GtkSalGraphics::NWPaintGTKPopupMenu(
     {
         gtk_widget_style_get( gWidgetData[m_nXScreen].gMenuItemMenuWidget,
                               "selected_shadow_type", &selected_shadow_type,
-                              (char *)NULL);
+                              nullptr);
     }
 
     NWSetWidgetState( gWidgetData[m_nXScreen].gMenuWidget, nState, stateType );
@@ -3685,7 +3685,7 @@ static Rectangle NWGetListBoxButtonRect( SalX11Screen nScreen,
 
     gtk_widget_style_get( gWidgetData[nScreen].gOptionMenuWidget,
             "indicator_size",    &pIndicatorSize,
-            "indicator_spacing",&pIndicatorSpacing, (char *)NULL);
+            "indicator_spacing",&pIndicatorSpacing, nullptr);
 
     if ( pIndicatorSize )
         width = pIndicatorSize->width;
@@ -3748,7 +3748,7 @@ static Rectangle NWGetListBoxIndicatorRect( SalX11Screen nScreen,
 
     gtk_widget_style_get( gWidgetData[nScreen].gOptionMenuWidget,
             "indicator_size",    &pIndicatorSize,
-            "indicator_spacing",&pIndicatorSpacing, (char *)NULL);
+            "indicator_spacing",&pIndicatorSpacing, nullptr);
 
     if ( pIndicatorSize )
     {
@@ -3868,7 +3868,7 @@ void GtkSalGraphics::refreshFontconfig( GtkSettings *pSettings )
 {
     guint latest_fontconfig_timestamp = 0;
     static guint our_fontconfig_timestamp = 0;
-    g_object_get( pSettings, "gtk-fontconfig-timestamp", &latest_fontconfig_timestamp, (char *)NULL );
+    g_object_get( pSettings, "gtk-fontconfig-timestamp", &latest_fontconfig_timestamp, nullptr );
     if (latest_fontconfig_timestamp != our_fontconfig_timestamp)
     {
         bool bFirstTime = our_fontconfig_timestamp == 0;
@@ -4147,11 +4147,11 @@ void GtkSalGraphics::updateSettings( AllSettings& rSettings )
     // get cursor blink time
     gboolean blink = false;
 
-    g_object_get( pSettings, "gtk-cursor-blink", &blink, (char *)NULL );
+    g_object_get( pSettings, "gtk-cursor-blink", &blink, nullptr );
     if( blink )
     {
         gint blink_time = static_cast<gint>(STYLE_CURSOR_NOBLINKTIME);
-        g_object_get( pSettings, "gtk-cursor-blink-time", &blink_time, (char *)NULL );
+        g_object_get( pSettings, "gtk-cursor-blink-time", &blink_time, nullptr );
         // set the blink_time if there is a setting and it is reasonable
         // else leave the default value
         if( blink_time > 100 && blink_time != gint(STYLE_CURSOR_NOBLINKTIME) )
@@ -4167,7 +4167,7 @@ void GtkSalGraphics::updateSettings( AllSettings& rSettings )
                   "gtk-double-click-distance", &iDoubleClickDistance,
                   "gtk-dnd-drag-threshold", &iDragThreshold,
                   "gtk-menu-popup-delay", &iMenuPopupDelay,
-                  (char *)NULL );
+                  nullptr );
     aMouseSettings.SetDoubleClickTime( iDoubleClickTime );
     aMouseSettings.SetDoubleClickWidth( iDoubleClickDistance );
     aMouseSettings.SetDoubleClickHeight( iDoubleClickDistance );
@@ -4179,13 +4179,13 @@ void GtkSalGraphics::updateSettings( AllSettings& rSettings )
     gboolean showmenuicons = true, primarybuttonwarps = false;
     g_object_get( pSettings,
         "gtk-menu-images", &showmenuicons,
-        (char *)NULL );
+        nullptr );
     if( g_object_class_find_property(
             G_OBJECT_GET_CLASS(pSettings), "gtk-primary-button-warps-slider") )
     {
         g_object_get( pSettings,
             "gtk-primary-button-warps-slider", &primarybuttonwarps,
-            (char *)NULL );
+            nullptr );
     }
     aStyleSet.SetPreferredUseImagesInMenus(showmenuicons);
     aStyleSet.SetPrimaryButtonWarpsSlider(primarybuttonwarps);
@@ -4200,14 +4200,14 @@ void GtkSalGraphics::updateSettings( AllSettings& rSettings )
                           "slider-width", &slider_width,
                           "trough-border", &trough_border,
                           "min-slider-length", &min_slider_length,
-                          (char *)NULL );
+                          nullptr );
     gint magic = trough_border ? 1 : 0;
     aStyleSet.SetScrollBarSize( slider_width + 2*trough_border );
     aStyleSet.SetMinThumbSize( min_slider_length - magic );
 
     // preferred icon style
     gchar* pIconThemeName = NULL;
-    g_object_get( pSettings, "gtk-icon-theme-name", &pIconThemeName, (char *)NULL );
+    g_object_get( pSettings, "gtk-icon-theme-name", &pIconThemeName, nullptr );
     aStyleSet.SetPreferredIconTheme( OUString::createFromAscii( pIconThemeName ) );
     g_free( pIconThemeName );
 
@@ -4322,7 +4322,7 @@ static void NWAddWidgetToCacheWindow( GtkWidget* widget, SalX11Screen nScreen )
         {
             rData.gCacheWindow = gtk_window_new( GTK_WINDOW_TOPLEVEL );
             g_object_set_data( G_OBJECT( rData.gCacheWindow ), "libo-version",
-                               (gpointer)LIBO_VERSION_DOTTED );
+                               const_cast<char *>(LIBO_VERSION_DOTTED) );
 
             GdkScreen* pScreen = gdk_display_get_screen( gdk_display_get_default(),
                                                          nScreen.getXScreen() );
@@ -4487,7 +4487,7 @@ static void NWEnsureGTKToolbar( SalX11Screen nScreen )
         gtk_widget_ensure_style( gWidgetData[nScreen].gToolbarWidget );
         gtk_widget_style_get( gWidgetData[nScreen].gToolbarWidget,
                               "button_relief", &aRelief,
-                              (char *)NULL);
+                              nullptr);
 
         gtk_button_set_relief( GTK_BUTTON(gWidgetData[nScreen].gToolbarButtonWidget), aRelief );
         GTK_WIDGET_UNSET_FLAGS( gWidgetData[nScreen].gToolbarButtonWidget, GTK_CAN_FOCUS );
diff --git a/vcl/unx/gtk/window/gtksalframe.cxx b/vcl/unx/gtk/window/gtksalframe.cxx
index 874f250b0b16..e590a8ab1bcd 100644
--- a/vcl/unx/gtk/window/gtksalframe.cxx
+++ b/vcl/unx/gtk/window/gtksalframe.cxx
@@ -956,14 +956,14 @@ ooo_fixed_get_type()
         static const GTypeInfo tinfo =
         {
             sizeof (GtkFixedClass),
-            (GBaseInitFunc) NULL,      /* base init */
-            (GBaseFinalizeFunc) NULL,  /* base finalize */
-            (GClassInitFunc) NULL,     /* class init */
-            (GClassFinalizeFunc) NULL, /* class finalize */
+            nullptr,      /* base init */
+            nullptr,  /* base finalize */
+            nullptr,     /* class init */
+            nullptr, /* class finalize */
             NULL,                      /* class data */
             sizeof (GtkFixed),         /* instance size */
             0,                         /* nb preallocs */
-            (GInstanceInitFunc) NULL,  /* instance init */
+            nullptr,  /* instance init */
             NULL                       /* value table */
         };
 
@@ -1296,7 +1296,7 @@ void GtkSalFrame::Init( SalFrame* pParent, sal_uLong nStyle )
         m_pWindow = gtk_widget_new( GTK_TYPE_WINDOW, "type", eWinType,
                                     "visible", FALSE, NULL );
     g_object_set_data( G_OBJECT( m_pWindow ), "SalFrame", this );
-    g_object_set_data( G_OBJECT( m_pWindow ), "libo-version", (gpointer)LIBO_VERSION_DOTTED);
+    g_object_set_data( G_OBJECT( m_pWindow ), "libo-version", const_cast<char *>(LIBO_VERSION_DOTTED));
 
     // force wm class hint
     m_nExtStyle = ~0;
@@ -4048,7 +4048,7 @@ void GtkSalFrame::IMHandler::doCallEndExtTextInput()
 void GtkSalFrame::IMHandler::updateIMSpotLocation()
 {
     SalExtTextInputPosEvent aPosEvent;
-    m_pFrame->CallCallback( SALEVENT_EXTTEXTINPUTPOS, (void*)&aPosEvent );
+    m_pFrame->CallCallback( SALEVENT_EXTTEXTINPUTPOS, static_cast<void*>(&aPosEvent) );
     GdkRectangle aArea;
     aArea.x = aPosEvent.mnX;
     aArea.y = aPosEvent.mnY;
@@ -4070,7 +4070,7 @@ void GtkSalFrame::IMHandler::sendEmptyCommit()
     aEmptyEv.mnCursorPos        = 0;
     aEmptyEv.mnCursorFlags      = 0;
     aEmptyEv.mbOnlyCursor       = False;
-    m_pFrame->CallCallback( SALEVENT_EXTTEXTINPUT, (void*)&aEmptyEv );
+    m_pFrame->CallCallback( SALEVENT_EXTTEXTINPUT, static_cast<void*>(&aEmptyEv) );
     if( ! aDel.isDeleted() )
         m_pFrame->CallCallback( SALEVENT_ENDEXTTEXTINPUT, NULL );
 }
@@ -4289,7 +4289,7 @@ void GtkSalFrame::IMHandler::signalIMCommit( GtkIMContext* pContext, gchar* pTex
         }
         if( ! bSingleCommit )
         {
-            pThis->m_pFrame->CallCallback( SALEVENT_EXTTEXTINPUT, (void*)&pThis->m_aInputEvent);
+            pThis->m_pFrame->CallCallback( SALEVENT_EXTTEXTINPUT, static_cast<void*>(&pThis->m_aInputEvent));
             if( ! aDel.isDeleted() )
                 pThis->doCallEndExtTextInput();
         }
@@ -4413,7 +4413,7 @@ void GtkSalFrame::IMHandler::signalIMPreeditChanged( GtkIMContext*, gpointer im_
     SolarMutexGuard aGuard;
     vcl::DeletionListener aDel( pThis->m_pFrame );
 
-    pThis->m_pFrame->CallCallback( SALEVENT_EXTTEXTINPUT, (void*)&pThis->m_aInputEvent);
+    pThis->m_pFrame->CallCallback( SALEVENT_EXTTEXTINPUT, static_cast<void*>(&pThis->m_aInputEvent));
     if( bEndPreedit && ! aDel.isDeleted() )
         pThis->doCallEndExtTextInput();
     if( ! aDel.isDeleted() )
diff --git a/vcl/unx/gtk/window/hudawareness.cxx b/vcl/unx/gtk/window/hudawareness.cxx
index 947f404f9d52..760103314d7c 100644
--- a/vcl/unx/gtk/window/hudawareness.cxx
+++ b/vcl/unx/gtk/window/hudawareness.cxx
@@ -61,7 +61,7 @@ hud_awareness_register (GDBusConnection       *connection,
   HudAwarenessHandle *handle;
   guint object_id;
 
-  memset ((void *)&vtable, 0, sizeof (vtable));
+  memset (static_cast<void *>(&vtable), 0, sizeof (vtable));
   vtable.method_call = hud_awareness_method_call;
 
   if G_UNLIKELY (iface == NULL)
diff --git a/vcl/unx/gtk3/gdi/gtk3salnativewidgets-gtk.cxx b/vcl/unx/gtk3/gdi/gtk3salnativewidgets-gtk.cxx
index 3b0662692d73..09bfac55a89e 100644
--- a/vcl/unx/gtk3/gdi/gtk3salnativewidgets-gtk.cxx
+++ b/vcl/unx/gtk3/gdi/gtk3salnativewidgets-gtk.cxx
@@ -167,7 +167,7 @@ Rectangle GtkSalGraphics::NWGetScrollButtonRect( ControlPart nPart, Rectangle aA
                                  "slider-width", &slider_width,
                                  "stepper-size", &stepper_size,
                                  "trough-border", &trough_border,
-                                 "stepper-spacing", &stepper_spacing, (char *)NULL );
+                                 "stepper-spacing", &stepper_spacing, nullptr );
 
     gboolean has_forward;
     gboolean has_forward2;
@@ -178,7 +178,7 @@ Rectangle GtkSalGraphics::NWGetScrollButtonRect( ControlPart nPart, Rectangle aA
                                  "has-forward-stepper", &has_forward,
                                  "has-secondary-forward-stepper", &has_forward2,
                                  "has-backward-stepper", &has_backward,
-                                 "has-secondary-backward-stepper", &has_backward2, (char *)NULL );
+                                 "has-secondary-backward-stepper", &has_backward2, nullptr );
     gint       buttonWidth;
     gint       buttonHeight;
     Rectangle  buttonRect;
@@ -285,7 +285,7 @@ void GtkSalGraphics::PaintScrollbar(GtkStyleContext *context,
                                  "stepper_size", &stepper_size,
                                  "trough_border", &trough_border,
                                  "stepper_spacing", &stepper_spacing,
-                                 "min_slider_length", &min_slider_length, (char *)NULL );
+                                 "min_slider_length", &min_slider_length, nullptr );
     gboolean has_forward;
     gboolean has_forward2;
     gboolean has_backward;
@@ -295,7 +295,7 @@ void GtkSalGraphics::PaintScrollbar(GtkStyleContext *context,
                                  "has-forward-stepper", &has_forward,
                                  "has-secondary-forward-stepper", &has_forward2,
                                  "has-backward-stepper", &has_backward,
-                                 "has-secondary-backward-stepper", &has_backward2, (char *)NULL );
+                                 "has-secondary-backward-stepper", &has_backward2, nullptr );
     gint magic = trough_border ? 1 : 0;
     gint nFirst = 0;
     gint slider_side = slider_width + (trough_border * 2);
@@ -1229,7 +1229,7 @@ bool GtkSalGraphics::getNativeControlRegion( ControlType nType, ControlPart nPar
         gtk_style_context_get_style( mpCheckButtonStyle,
                                      "indicator-size", &indicator_size,
                                      "indicator-spacing", &indicator_spacing,
-                                     (char *)NULL );
+                                     nullptr );
 
         GtkBorder border;
         gtk_style_context_get_border(mpCheckButtonStyle, GTK_STATE_FLAG_NORMAL, &border);
@@ -1255,7 +1255,7 @@ bool GtkSalGraphics::getNativeControlRegion( ControlType nType, ControlPart nPar
 
             gtk_style_context_get_style( mpMenuItemStyle,
                                          "indicator-size", &indicator_size,
-                                         (char *)NULL );
+                                         nullptr );
 
             point = MAX(0, rControlRegion.GetHeight() - indicator_size);
             aEditRect = Rectangle( Point( 0, point / 2),
@@ -1697,11 +1697,11 @@ void GtkSalGraphics::updateSettings( AllSettings& rSettings )
     // get cursor blink time
     gboolean blink = false;
 
-    g_object_get( pSettings, "gtk-cursor-blink", &blink, (char *)NULL );
+    g_object_get( pSettings, "gtk-cursor-blink", &blink, nullptr );
     if( blink )
     {
         gint blink_time = static_cast<gint>(STYLE_CURSOR_NOBLINKTIME);
-        g_object_get( pSettings, "gtk-cursor-blink-time", &blink_time, (char *)NULL );
+        g_object_get( pSettings, "gtk-cursor-blink-time", &blink_time, nullptr );
         // set the blink_time if there is a setting and it is reasonable
         // else leave the default value
         if( blink_time > 100 && blink_time != gint(STYLE_CURSOR_NOBLINKTIME) )
@@ -1717,7 +1717,7 @@ void GtkSalGraphics::updateSettings( AllSettings& rSettings )
                   "gtk-double-click-distance", &iDoubleClickDistance,
                   "gtk-dnd-drag-threshold", &iDragThreshold,
                   "gtk-menu-popup-delay", &iMenuPopupDelay,
-                  (char *)NULL );
+                  nullptr );
     aMouseSettings.SetDoubleClickTime( iDoubleClickTime );
     aMouseSettings.SetDoubleClickWidth( iDoubleClickDistance );
     aMouseSettings.SetDoubleClickHeight( iDoubleClickDistance );
@@ -1730,7 +1730,7 @@ void GtkSalGraphics::updateSettings( AllSettings& rSettings )
     g_object_get( pSettings,
         "gtk-menu-images", &showmenuicons,
         "gtk-primary-button-warps-slider", &primarybuttonwarps,
-        (char *)NULL );
+        nullptr );
     aStyleSet.SetPreferredUseImagesInMenus(showmenuicons);
     aStyleSet.SetPrimaryButtonWarpsSlider(primarybuttonwarps);
 
@@ -1744,14 +1744,14 @@ void GtkSalGraphics::updateSettings( AllSettings& rSettings )
                                  "slider-width", &slider_width,
                                  "trough-border", &trough_border,
                                  "min-slider-length", &min_slider_length,
-                                 (char *)NULL );
+                                 nullptr );
     gint magic = trough_border ? 1 : 0;
     aStyleSet.SetScrollBarSize( slider_width + 2*trough_border );
     aStyleSet.SetMinThumbSize( min_slider_length - magic );
 
     // preferred icon style
     gchar* pIconThemeName = NULL;
-    g_object_get( pSettings, "gtk-icon-theme-name", &pIconThemeName, (char *)NULL );
+    g_object_get( pSettings, "gtk-icon-theme-name", &pIconThemeName, nullptr );
     aStyleSet.SetPreferredIconTheme( OUString::createFromAscii( pIconThemeName ) );
     g_free( pIconThemeName );
 
@@ -1762,7 +1762,7 @@ void GtkSalGraphics::updateSettings( AllSettings& rSettings )
     // finally update the collected settings
     rSettings.SetStyleSettings( aStyleSet );
     gchar* pThemeName = NULL;
-    g_object_get( pSettings, "gtk-theme-name", &pThemeName, (char *)NULL );
+    g_object_get( pSettings, "gtk-theme-name", &pThemeName, nullptr );
     #if OSL_DEBUG_LEVEL > 1
     fprintf( stderr, "Theme name is \"%s\"\n", pThemeName );
     #endif
diff --git a/vcl/unx/kde4/KDESalFrame.cxx b/vcl/unx/kde4/KDESalFrame.cxx
index 540773dde5f0..6c464ac810a5 100644
--- a/vcl/unx/kde4/KDESalFrame.cxx
+++ b/vcl/unx/kde4/KDESalFrame.cxx
@@ -72,7 +72,7 @@ static Color toColor( const QColor &rColor )
 */
 static OUString readEntryUntranslated( KConfigGroup *pGroup, const char *pKey )
 {
-    return OUString::createFromAscii( (const char *) pGroup->readEntryUntranslated( pKey ).toAscii() );
+    return OUString::createFromAscii( static_cast<const char *>(pGroup->readEntryUntranslated( pKey ).toAscii()) );
 }
 
 /** Helper function to add information to Font from QFont.
@@ -85,7 +85,7 @@ static vcl::Font toFont( const QFont &rQFont, const ::com::sun::star::lang::Loca
     QFontInfo qFontInfo( rQFont );
 
     // set family name
-    aInfo.m_aFamilyName = OUString( (const char *) rQFont.family().toUtf8(), strlen( (const char *) rQFont.family().toUtf8() ), RTL_TEXTENCODING_UTF8 );
+    aInfo.m_aFamilyName = OUString( static_cast<const char *>(rQFont.family().toUtf8()), strlen( static_cast<const char *>(rQFont.family().toUtf8()) ), RTL_TEXTENCODING_UTF8 );
 
     // set italic
     aInfo.m_eItalic = ( qFontInfo.italic()? ITALIC_NORMAL: ITALIC_NONE );
diff --git a/vcl/workben/outdevgrind.cxx b/vcl/workben/outdevgrind.cxx
index 7407c51a5fe5..aad7dec896db 100644
--- a/vcl/workben/outdevgrind.cxx
+++ b/vcl/workben/outdevgrind.cxx
@@ -64,7 +64,7 @@ public:
 class TestWindow : public Dialog
 {
     public:
-        TestWindow() : Dialog( (vcl::Window *) NULL )
+        TestWindow() : Dialog( nullptr )
         {
             SetText( OUString("OutDev grinding") );
             SetSizePixel( Size( 1024, 1024 ) );