make some important single-parameter constructors explicit

for symmetry also the other constructors in the same class
and mark their destructors as virtual if they are anyway
(cherry picked from commit 870349eada8c0e56d58c8d2ee40ad561a9f982fe)

Conflicts:
vcl/inc/vcl/button.hxx
vcl/inc/vcl/combobox.hxx
vcl/inc/vcl/ctrl.hxx
vcl/inc/vcl/dialog.hxx
vcl/inc/vcl/dockingarea.hxx
vcl/inc/vcl/event.hxx
vcl/inc/vcl/field.hxx
vcl/inc/vcl/fixed.hxx
vcl/inc/vcl/floatwin.hxx
vcl/inc/vcl/fontmanager.hxx
vcl/inc/vcl/group.hxx
vcl/inc/vcl/lstbox.hxx
vcl/inc/vcl/menu.hxx
vcl/inc/vcl/menubtn.hxx
vcl/inc/vcl/metaact.hxx
vcl/inc/vcl/morebtn.hxx
vcl/inc/vcl/pngread.hxx
vcl/inc/vcl/scrbar.hxx
vcl/inc/vcl/spin.hxx
vcl/inc/vcl/spinfld.hxx
vcl/inc/vcl/split.hxx
vcl/inc/vcl/syschild.hxx
vcl/inc/vcl/tabpage.hxx
vcl/inc/vcl/virdev.hxx
vcl/inc/vcl/wrkwin.hxx

Change-Id: I8c29f74208cf382a9baa01c2e2d0757688cb4641

25 files changed, 172 insertions, 172 deletions

diff --git a/include/vcl/button.hxx b/include/vcl/button.hxx
index 8c116b0644dd..e57ea3cbed26 100644
--- a/include/vcl/button.hxx
+++ b/include/vcl/button.hxx
@@ -61,10 +61,10 @@ public:
     SAL_DLLPRIVATE void             ImplSetSeparatorX( long nX );
 
 protected:
-                        Button( WindowType nType );
+    explicit            Button( WindowType nType );
 
 public:
-                       ~Button();
+    virtual            ~Button();
 
     virtual void        Click();
 
@@ -136,7 +136,7 @@ public:
     SAL_DLLPRIVATE sal_Bool            ImplIsDefButton() const;
 
 protected:
-                    PushButton( WindowType nType );
+    explicit        PushButton( WindowType nType );
 
     virtual void    FillLayoutData() const;
     virtual const Font&
@@ -144,9 +144,9 @@ protected:
     virtual const Color&
                     GetCanonicalTextColor( const StyleSettings& _rStyle ) const;
 public:
-                    PushButton( Window* pParent, WinBits nStyle = 0 );
-                    PushButton( Window* pParent, const ResId& rResId );
-                    ~PushButton();
+    explicit        PushButton( Window* pParent, WinBits nStyle = 0 );
+    explicit        PushButton( Window* pParent, const ResId& );
+    virtual         ~PushButton();
 
     virtual void    MouseButtonDown( const MouseEvent& rMEvt );
     virtual void    Tracking( const TrackingEvent& rTEvt );
@@ -219,8 +219,8 @@ private:
     SAL_DLLPRIVATE                 OKButton & operator= (const OKButton &);
 
 public:
-                    OKButton( Window* pParent, WinBits nStyle = WB_DEFBUTTON );
-                    OKButton( Window* pParent, const ResId& rResId );
+    explicit        OKButton( Window* pParent, WinBits nStyle = WB_DEFBUTTON );
+    explicit        OKButton( Window* pParent, const ResId& );
 
     virtual void    Click();
 };
@@ -241,8 +241,8 @@ private:
     SAL_DLLPRIVATE      CancelButton & operator= (const CancelButton &);
 
 public:
-                    CancelButton( Window* pParent, WinBits nStyle = 0 );
-                    CancelButton( Window* pParent, const ResId& rResId );
+    explicit        CancelButton( Window* pParent, WinBits nStyle = 0 );
+    explicit        CancelButton( Window* pParent, const ResId& );
 
     virtual void    Click();
 };
@@ -250,7 +250,7 @@ public:
 class VCL_DLLPUBLIC CloseButton : public CancelButton
 {
 public:
-    CloseButton(Window* pParent, WinBits nStyle = 0);
+    explicit CloseButton(Window* pParent, WinBits nStyle = 0);
 };
 
 
@@ -270,8 +270,8 @@ private:
     SAL_DLLPRIVATE      HelpButton & operator= ( const HelpButton & );
 
 public:
-                    HelpButton( Window* pParent, WinBits nStyle = 0 );
-                    HelpButton( Window* pParent, const ResId& rResId );
+    explicit        HelpButton( Window* pParent, WinBits nStyle = 0 );
+    explicit        HelpButton( Window* pParent, const ResId& );
 
     virtual void    Click();
 };
@@ -342,9 +342,9 @@ protected:
     void            DrawRadioButtonState( );
 
 public:
-                    RadioButton( Window* pParent, WinBits nWinStyle = 0 );
-                    RadioButton( Window* pParent, const ResId& rResId );
-                    ~RadioButton();
+    explicit        RadioButton( Window* pParent, WinBits nWinStyle = 0 );
+    explicit        RadioButton( Window* pParent, const ResId& );
+    virtual         ~RadioButton();
 
     virtual void    MouseButtonDown( const MouseEvent& rMEvt );
     virtual void    Tracking( const TrackingEvent& rTEvt );
@@ -460,8 +460,8 @@ public:
     SAL_DLLPRIVATE void         ImplCheck();
     SAL_DLLPRIVATE void         ImplSetMinimumNWFSize();
 public:
-                    CheckBox( Window* pParent, WinBits nStyle = 0 );
-                    CheckBox( Window* pParent, const ResId& rResId );
+    explicit        CheckBox( Window* pParent, WinBits nStyle = 0 );
+    explicit        CheckBox( Window* pParent, const ResId& );
 
     virtual void    MouseButtonDown( const MouseEvent& rMEvt );
     virtual void    Tracking( const TrackingEvent& rTEvt );
@@ -541,9 +541,9 @@ class VCL_DLLPUBLIC ImageRadioButton : public RadioButton
     SAL_DLLPRIVATE  ImageRadioButton & operator= ( const ImageRadioButton & );
 
 public:
-                    ImageRadioButton( Window* pParent, WinBits nStyle = 0 );
-                    ImageRadioButton( Window* pParent, const ResId& rResId );
-                    ~ImageRadioButton();
+    explicit        ImageRadioButton( Window* pParent, WinBits nStyle = 0 );
+    explicit        ImageRadioButton( Window* pParent, const ResId& );
+    virtual         ~ImageRadioButton();
 };
 
 class VCL_DLLPUBLIC TriStateBox : public CheckBox
@@ -553,9 +553,9 @@ class VCL_DLLPUBLIC TriStateBox : public CheckBox
     SAL_DLLPRIVATE  TriStateBox & operator= ( const TriStateBox & );
 
 public:
-            TriStateBox( Window* pParent, WinBits nStyle = 0 );
-            TriStateBox( Window* pParent, const ResId& rResId );
-            ~TriStateBox();
+    explicit        TriStateBox( Window* pParent, WinBits nStyle = 0 );
+    explicit        TriStateBox( Window* pParent, const ResId& );
+    virtual         ~TriStateBox();
 };
 
 class VCL_DLLPUBLIC DisclosureButton : public CheckBox
@@ -563,8 +563,8 @@ class VCL_DLLPUBLIC DisclosureButton : public CheckBox
 protected:
     SAL_DLLPRIVATE virtual void ImplDrawCheckBoxState();
 public:
-    DisclosureButton( Window* pParent, WinBits nStyle = 0 );
-    DisclosureButton( Window* pParent, const ResId& rResId );
+    explicit DisclosureButton( Window* pParent, WinBits nStyle = 0 );
+    explicit DisclosureButton( Window* pParent, const ResId& rResId );
 
     virtual void    KeyInput( const KeyEvent& rKEvt );
 };
diff --git a/include/vcl/combobox.hxx b/include/vcl/combobox.hxx
index f0637109716a..63518749a494 100644
--- a/include/vcl/combobox.hxx
+++ b/include/vcl/combobox.hxx
@@ -84,14 +84,14 @@ protected:
     SAL_DLLPRIVATE long     getMaxWidthScrollBarAndDownButton() const;
 
 protected:
-                    ComboBox( WindowType nType );
+    explicit            ComboBox( WindowType nType );
     sal_Bool            IsDropDownBox() const { return mpFloatWin ? sal_True : sal_False; }
 
     virtual void  FillLayoutData() const;
 public:
-                    ComboBox( Window* pParent, WinBits nStyle = 0 );
-                    ComboBox( Window* pParent, const ResId& rResId );
-                    ~ComboBox();
+    explicit        ComboBox( Window* pParent, WinBits nStyle = 0 );
+    explicit        ComboBox( Window* pParent, const ResId& );
+    virtual         ~ComboBox();
 
     virtual void    Draw( OutputDevice* pDev, const Point& rPos, const Size& rSize, sal_uLong nFlags );
     virtual void    Resize();
diff --git a/include/vcl/ctrl.hxx b/include/vcl/ctrl.hxx
index 390f416ae142..1b3a6d153326 100644
--- a/include/vcl/ctrl.hxx
+++ b/include/vcl/ctrl.hxx
@@ -124,9 +124,9 @@ public:
     SAL_DLLPRIVATE void ImplDrawFrame( OutputDevice* pDev, Rectangle& rRect );
 
 public:
-                    Control( Window* pParent, WinBits nWinStyle = 0 );
-                    Control( Window* pParent, const ResId& rResId );
-                    ~Control();
+    explicit        Control( Window* pParent, WinBits nWinStyle = 0 );
+    explicit        Control( Window* pParent, const ResId& );
+    virtual         ~Control();
 
     virtual void    GetFocus();
     virtual void    LoseFocus();
diff --git a/include/vcl/dialog.hxx b/include/vcl/dialog.hxx
index d7994c61580e..a8737d15395f 100644
--- a/include/vcl/dialog.hxx
+++ b/include/vcl/dialog.hxx
@@ -81,8 +81,8 @@ public:
     SAL_DLLPRIVATE bool isDeferredInit() const { return mbIsDefferedInit; }
 
 protected:
-                    Dialog( WindowType nType );
-                    Dialog( Window* pParent, const OString& rID, const OUString& rUIXMLDescription, WindowType nType );
+    explicit        Dialog( WindowType nType );
+    explicit        Dialog( Window* pParent, const OString& rID, const OUString& rUIXMLDescription, WindowType nType );
     virtual void    Draw( OutputDevice* pDev, const Point& rPos, const Size& rSize, sal_uLong nFlags );
 
 protected:
@@ -91,8 +91,8 @@ protected:
     void set_content_area(VclBox *pBox);
 
 public:
-                    Dialog( Window* pParent, WinBits nStyle = WB_STDDIALOG );
-                    Dialog( Window* pParent, const OString& rID, const OUString& rUIXMLDescription );
+    explicit        Dialog( Window* pParent, WinBits nStyle = WB_STDDIALOG );
+    explicit        Dialog( Window* pParent, const OString& rID, const OUString& rUIXMLDescription );
     virtual         ~Dialog();
 
     virtual long    Notify( NotifyEvent& rNEvt );
@@ -152,8 +152,8 @@ class VCL_DLLPUBLIC ModelessDialog : public Dialog
     SAL_DLLPRIVATE         ModelessDialog & operator= (const ModelessDialog &);
 
 public:
-                    ModelessDialog( Window* pParent, const ResId& rResId );
-                    ModelessDialog( Window* pParent, const OString& rID, const OUString& rUIXMLDescription );
+    explicit        ModelessDialog( Window* pParent, const ResId& rResId );
+    explicit        ModelessDialog( Window* pParent, const OString& rID, const OUString& rUIXMLDescription );
 };
 
 // ---------------
@@ -163,9 +163,9 @@ public:
 class VCL_DLLPUBLIC ModalDialog : public Dialog
 {
 public:
-                    ModalDialog( Window* pParent, WinBits nStyle = WB_STDMODAL );
-                    ModalDialog( Window* pParent, const OString& rID, const OUString& rUIXMLDescription );
-                    ModalDialog( Window* pParent, const ResId& rResId );
+    explicit        ModalDialog( Window* pParent, WinBits nStyle = WB_STDMODAL );
+    explicit        ModalDialog( Window* pParent, const OString& rID, const OUString& rUIXMLDescription );
+    explicit        ModalDialog( Window* pParent, const ResId& rResId );
 
 protected:
     using Window::Show;
diff --git a/include/vcl/dockingarea.hxx b/include/vcl/dockingarea.hxx
index a5778519e3ae..722cf2a3d698 100644
--- a/include/vcl/dockingarea.hxx
+++ b/include/vcl/dockingarea.hxx
@@ -40,8 +40,8 @@ private:
     SAL_DLLPRIVATE  DockingAreaWindow & operator= (const DockingAreaWindow &);
 
 public:
-                    DockingAreaWindow( Window *pParent );
-                    ~DockingAreaWindow();
+    explicit        DockingAreaWindow( Window* pParent );
+    virtual         ~DockingAreaWindow();
 
     void            SetAlign( WindowAlign eNewAlign );
     WindowAlign     GetAlign() const;
diff --git a/include/vcl/event.hxx b/include/vcl/event.hxx
index e89d52ad1e9a..1d3c76e0ba7b 100644
--- a/include/vcl/event.hxx
+++ b/include/vcl/event.hxx
@@ -118,8 +118,8 @@ private:
     sal_uInt16          mnCode;
 
 public:
-                    MouseEvent();
-                    MouseEvent( const Point& rPos, sal_uInt16 nClicks = 1,
+    explicit        MouseEvent();
+    explicit        MouseEvent( const Point& rPos, sal_uInt16 nClicks = 1,
                                 sal_uInt16 nMode = 0, sal_uInt16 nButtons = 0,
                                 sal_uInt16 nModifier = 0 );
 
@@ -254,9 +254,9 @@ private:
     sal_Bool            mbKeyboardActivated;
 
 public:
-                    HelpEvent();
-                    HelpEvent( sal_uInt16 nHelpMode );
-                    HelpEvent( const Point& rMousePos, sal_uInt16 nHelpMode );
+    explicit        HelpEvent();
+    explicit        HelpEvent( sal_uInt16 nHelpMode );
+    explicit        HelpEvent( const Point& rMousePos, sal_uInt16 nHelpMode );
 
     const Point&    GetMousePosPixel() const;
     sal_uInt16          GetMode() const { return mnMode; }
@@ -347,8 +347,8 @@ private:
     sal_uInt16              mnFlags;
 
 public:
-                        TrackingEvent();
-                        TrackingEvent( const MouseEvent& rMEvt,
+    explicit            TrackingEvent();
+    explicit            TrackingEvent( const MouseEvent&,
                                        sal_uInt16 nTrackFlags = 0 );
 
     const MouseEvent&   GetMouseEvent() const { return maMEvt; }
@@ -481,8 +481,8 @@ private:
     sal_uInt16                  mnType;
 
 public:
-                            DataChangedEvent();
-                            DataChangedEvent( sal_uInt16 nType,
+    explicit                DataChangedEvent();
+    explicit                DataChangedEvent( sal_uInt16 nType,
                                               const void* pData = NULL,
                                               sal_uLong nFlags = 0 );
 
diff --git a/include/vcl/field.hxx b/include/vcl/field.hxx
index babab8da29d2..97ff8f1136ad 100644
--- a/include/vcl/field.hxx
+++ b/include/vcl/field.hxx
@@ -60,7 +60,7 @@ protected:
     sal_Bool                    IsDefaultLocale() const { return mbDefaultLocale; }
 
 public:
-                            FormatterBase( Edit* pField = NULL );
+    explicit                FormatterBase( Edit* pField = NULL );
     virtual                 ~FormatterBase();
 
     const LocaleDataWrapper& GetLocaleDataWrapper() const;
@@ -119,7 +119,7 @@ protected:
     SAL_DLLPRIVATE sal_Bool&    ImplGetInPattKeyInput() { return mbInPattKeyInput; }
 
 public:
-                           ~PatternFormatter();
+    virtual                 ~PatternFormatter();
 
     virtual void            Reformat();
 
@@ -175,7 +175,7 @@ protected:
     SAL_DLLPRIVATE void     ImplSetUserValue( sal_Int64 nNewValue, Selection* pNewSelection = NULL );
 
 public:
-                            ~NumericFormatter();
+    virtual                 ~NumericFormatter();
 
     virtual void            Reformat();
 
@@ -235,7 +235,7 @@ protected:
     SAL_DLLPRIVATE sal_Bool     ImplMetricReformat( const OUString& rStr, double& rValue, OUString& rOutStr );
 
 public:
-                            ~MetricFormatter();
+    virtual                 ~MetricFormatter();
 
     virtual void            CustomConvert() = 0;
     virtual void            Reformat();
@@ -286,7 +286,7 @@ protected:
     SAL_DLLPRIVATE sal_Bool     ImplCurrencyReformat( const OUString& rStr, OUString& rOutStr );
 
 public:
-                            ~CurrencyFormatter();
+    virtual                 ~CurrencyFormatter();
 
     virtual void            Reformat();
 
@@ -336,7 +336,7 @@ protected:
     SAL_DLLPRIVATE sal_Bool     ImplAllowMalformedInput() const;
 
 public:
-                            ~DateFormatter();
+    virtual                 ~DateFormatter();
 
     virtual void            Reformat();
     virtual void            ReformatAll();
@@ -431,7 +431,7 @@ public:
                                 HOUR_24
                             };
 
-                            ~TimeFormatter();
+    virtual                 ~TimeFormatter();
 
     virtual void            Reformat();
     virtual void            ReformatAll();
@@ -483,8 +483,8 @@ public:
 class VCL_DLLPUBLIC PatternField : public SpinField, public PatternFormatter
 {
 public:
-                            PatternField( Window* pParent, WinBits nWinStyle );
-                            ~PatternField();
+    explicit                PatternField( Window* pParent, WinBits nWinStyle );
+    virtual                 ~PatternField();
 
     virtual long            PreNotify( NotifyEvent& rNEvt );
     virtual long            Notify( NotifyEvent& rNEvt );
@@ -502,9 +502,9 @@ protected:
     SAL_DLLPRIVATE void     ImplLoadRes( const ResId& rResId );
 
 public:
-                            NumericField( Window* pParent, WinBits nWinStyle );
-                            NumericField( Window* pParent, const ResId& rResId );
-                            ~NumericField();
+    explicit                NumericField( Window* pParent, WinBits nWinStyle );
+    explicit                NumericField( Window* pParent, const ResId& );
+    virtual                 ~NumericField();
 
     virtual long            PreNotify( NotifyEvent& rNEvt );
     virtual long            Notify( NotifyEvent& rNEvt );
@@ -532,9 +532,9 @@ protected:
     SAL_DLLPRIVATE void     ImplLoadRes( const ResId& rResId );
 
 public:
-                            MetricField( Window* pParent, WinBits nWinStyle );
-                            MetricField( Window* pParent, const ResId& rResId );
-                            ~MetricField();
+    explicit                MetricField( Window* pParent, WinBits nWinStyle );
+    explicit                MetricField( Window* pParent, const ResId& );
+    virtual                 ~MetricField();
 
     virtual long            PreNotify( NotifyEvent& rNEvt );
     virtual long            Notify( NotifyEvent& rNEvt );
@@ -632,9 +632,9 @@ protected:
     SAL_DLLPRIVATE void     ImplLoadRes( const ResId& rResId );
 
 public:
-                            DateField( Window* pParent, WinBits nWinStyle );
-                            DateField( Window* pParent, const ResId& rResId );
-                            ~DateField();
+    explicit                DateField( Window* pParent, WinBits nWinStyle );
+    explicit                DateField( Window* pParent, const ResId& );
+    virtual                 ~DateField();
 
     virtual long            PreNotify( NotifyEvent& rNEvt );
     virtual long            Notify( NotifyEvent& rNEvt );
@@ -668,9 +668,9 @@ protected:
     SAL_DLLPRIVATE void     ImplLoadRes( const ResId& rResId );
 
 public:
-                            TimeField( Window* pParent, WinBits nWinStyle );
-                            TimeField( Window* pParent, const ResId& rResId );
-                            ~TimeField();
+    explicit                TimeField( Window* pParent, WinBits nWinStyle );
+    explicit                TimeField( Window* pParent, const ResId& );
+    virtual                 ~TimeField();
 
     virtual long            PreNotify( NotifyEvent& rNEvt );
     virtual long            Notify( NotifyEvent& rNEvt );
@@ -718,9 +718,9 @@ public:
 class VCL_DLLPUBLIC NumericBox : public ComboBox, public NumericFormatter
 {
 public:
-                            NumericBox( Window* pParent, WinBits nWinStyle );
-                            NumericBox( Window* pParent, const ResId& rResId );
-                            ~NumericBox();
+    explicit                NumericBox( Window* pParent, WinBits nWinStyle );
+    explicit                NumericBox( Window* pParent, const ResId& );
+    virtual                 ~NumericBox();
 
     virtual long            PreNotify( NotifyEvent& rNEvt );
     virtual long            Notify( NotifyEvent& rNEvt );
@@ -741,9 +741,9 @@ public:
 class VCL_DLLPUBLIC MetricBox : public ComboBox, public MetricFormatter
 {
 public:
-                            MetricBox( Window* pParent, WinBits nWinStyle );
-                            MetricBox( Window* pParent, const ResId& rResId );
-                            ~MetricBox();
+    explicit                MetricBox( Window* pParent, WinBits nWinStyle );
+    explicit                MetricBox( Window* pParent, const ResId& );
+    virtual                 ~MetricBox();
 
     virtual long            PreNotify( NotifyEvent& rNEvt );
     virtual long            Notify( NotifyEvent& rNEvt );
@@ -773,9 +773,9 @@ public:
 class VCL_DLLPUBLIC CurrencyBox : public ComboBox, public CurrencyFormatter
 {
 public:
-                            CurrencyBox( Window* pParent, WinBits nWinStyle );
-                            CurrencyBox( Window* pParent, const ResId& rResId );
-                            ~CurrencyBox();
+    explicit                CurrencyBox( Window* pParent, WinBits nWinStyle );
+    explicit                CurrencyBox( Window* pParent, const ResId& );
+    virtual                 ~CurrencyBox();
 
     virtual long            PreNotify( NotifyEvent& rNEvt );
     virtual long            Notify( NotifyEvent& rNEvt );
@@ -795,8 +795,8 @@ public:
 class VCL_DLLPUBLIC DateBox : public ComboBox, public DateFormatter
 {
 public:
-                            DateBox( Window* pParent, WinBits nWinStyle );
-                            ~DateBox();
+    explicit                DateBox( Window* pParent, WinBits nWinStyle );
+    virtual                 ~DateBox();
 
     virtual long            PreNotify( NotifyEvent& rNEvt );
     virtual long            Notify( NotifyEvent& rNEvt );
@@ -815,8 +815,8 @@ public:
 class VCL_DLLPUBLIC TimeBox : public ComboBox, public TimeFormatter
 {
 public:
-                            TimeBox( Window* pParent, WinBits nWinStyle );
-                            ~TimeBox();
+    explicit                TimeBox( Window* pParent, WinBits nWinStyle );
+    virtual                 ~TimeBox();
 
     virtual long            PreNotify( NotifyEvent& rNEvt );
     virtual long            Notify( NotifyEvent& rNEvt );
diff --git a/include/vcl/fixed.hxx b/include/vcl/fixed.hxx
index b592d98a48d2..d8379e5be6ca 100644
--- a/include/vcl/fixed.hxx
+++ b/include/vcl/fixed.hxx
@@ -59,9 +59,9 @@ protected:
     virtual Window* getAccessibleRelationLabelFor() const;
 
 public:
-                    FixedText( Window* pParent, WinBits nStyle = 0 );
-                    FixedText( Window* pParent, const ResId& rResId );
-                    ~FixedText();
+    explicit        FixedText( Window* pParent, WinBits nStyle = 0 );
+    explicit        FixedText( Window* pParent, const ResId& rResId );
+    virtual         ~FixedText();
 
     virtual void    Paint( const Rectangle& rRect );
     virtual void    Draw( OutputDevice* pDev, const Point& rPos, const Size& rSize, sal_uLong nFlags );
@@ -85,7 +85,7 @@ public:
 class VCL_DLLPUBLIC SelectableFixedText : public Edit
 {
 public:
-    SelectableFixedText( Window* pParent, WinBits nStyle = 0 );
+    explicit SelectableFixedText( Window* pParent, WinBits nStyle = 0 );
 
     virtual void    LoseFocus();
 };
@@ -112,8 +112,8 @@ protected:
                     GetCanonicalTextColor( const StyleSettings& _rStyle ) const;
 
 public:
-                    FixedLine( Window* pParent, WinBits nStyle = WB_HORZ );
-                    FixedLine( Window* pParent, const ResId& rResId );
+    explicit        FixedLine( Window* pParent, WinBits nStyle = WB_HORZ );
+    explicit        FixedLine( Window* pParent, const ResId& );
 
     virtual void    Paint( const Rectangle& rRect );
     virtual void    Draw( OutputDevice* pDev, const Point& rPos, const Size& rSize, sal_uLong nFlags );
@@ -145,9 +145,9 @@ protected:
     SAL_DLLPRIVATE void    ImplLoadRes( const ResId& rResId );
 
 public:
-                    FixedBitmap( Window* pParent, WinBits nStyle = 0 );
-                    FixedBitmap( Window* pParent, const ResId& rResId );
-                    ~FixedBitmap();
+    explicit        FixedBitmap( Window* pParent, WinBits nStyle = 0 );
+    explicit        FixedBitmap( Window* pParent, const ResId& );
+    virtual         ~FixedBitmap();
 
     virtual void    Paint( const Rectangle& rRect );
     virtual void    Draw( OutputDevice* pDev, const Point& rPos, const Size& rSize, sal_uLong nFlags );
@@ -183,9 +183,9 @@ protected:
     SAL_DLLPRIVATE void    ImplLoadRes( const ResId& rResId );
 
 public:
-                    FixedImage( Window* pParent, WinBits nStyle = 0 );
-                    FixedImage( Window* pParent, const ResId& rResId );
-                    ~FixedImage();
+    explicit        FixedImage( Window* pParent, WinBits nStyle = 0 );
+    explicit        FixedImage( Window* pParent, const ResId& );
+    virtual         ~FixedImage();
 
     virtual void    Paint( const Rectangle& rRect );
     virtual void    Draw( OutputDevice* pDev, const Point& rPos, const Size& rSize, sal_uLong nFlags );
diff --git a/include/vcl/floatwin.hxx b/include/vcl/floatwin.hxx
index 4f29b40e01a5..b840417892c2 100644
--- a/include/vcl/floatwin.hxx
+++ b/include/vcl/floatwin.hxx
@@ -115,9 +115,9 @@ public:
     SAL_DLLPRIVATE sal_Bool             ImplIsInPrivatePopupMode() const { return mbInPopupMode; }
 
 public:
-                    FloatingWindow( Window* pParent, WinBits nStyle = WB_STDFLOATWIN );
-                    FloatingWindow( Window* pParent, const ResId& rResId );
-                    ~FloatingWindow();
+    explicit        FloatingWindow( Window* pParent, WinBits nStyle = WB_STDFLOATWIN );
+    explicit        FloatingWindow( Window* pParent, const ResId& );
+    virtual         ~FloatingWindow();
 
     virtual long    Notify( NotifyEvent& rNEvt );
     virtual void    StateChanged( StateChangedType nType );
diff --git a/include/vcl/fontmanager.hxx b/include/vcl/fontmanager.hxx
index 05955f984710..cfddd75d55d8 100644
--- a/include/vcl/fontmanager.hxx
+++ b/include/vcl/fontmanager.hxx
@@ -216,7 +216,7 @@ class VCL_PLUGIN_PUBLIC PrintFontManager
         std::map< sal_Unicode, sal_Int32 >          m_aEncodingVector;
         std::map< sal_Unicode, OString >       m_aNonEncoded;
 
-        PrintFont( fonttype::type eType );
+        explicit PrintFont( fonttype::type eType );
         virtual ~PrintFont();
         virtual bool queryMetricPage( int nPage, utl::MultiAtomProvider* pProvider ) = 0;
 
diff --git a/include/vcl/group.hxx b/include/vcl/group.hxx
index 647aabe66570..b06b5015896c 100644
--- a/include/vcl/group.hxx
+++ b/include/vcl/group.hxx
@@ -46,8 +46,8 @@ private:
                     GetCanonicalTextColor( const StyleSettings& _rStyle ) const;
 
 public:
-                    GroupBox( Window* pParent, WinBits nStyle = 0 );
-                    GroupBox( Window* pParent, const ResId& rResId );
+    explicit        GroupBox( Window* pParent, WinBits nStyle = 0 );
+    explicit        GroupBox( Window* pParent, const ResId& );
 
     virtual void    Paint( const Rectangle& rRect );
     virtual void    Draw( OutputDevice* pDev, const Point& rPos, const Size& rSize, sal_uLong nFlags );
diff --git a/include/vcl/lstbox.hxx b/include/vcl/lstbox.hxx
index 79026116c473..b66223328cbe 100644
--- a/include/vcl/lstbox.hxx
+++ b/include/vcl/lstbox.hxx
@@ -69,14 +69,14 @@ protected:
     sal_Bool                IsDropDownBox() const { return mpFloatWin ? sal_True : sal_False; }
 
 protected:
-                        ListBox( WindowType nType );
+    explicit            ListBox( WindowType nType );
 
     virtual void        FillLayoutData() const;
 
 public:
-                        ListBox( Window* pParent, WinBits nStyle = WB_BORDER );
-                        ListBox( Window* pParent, const ResId& rResId );
-                        ~ListBox();
+    explicit            ListBox( Window* pParent, WinBits nStyle = WB_BORDER );
+    explicit            ListBox( Window* pParent, const ResId& );
+    virtual             ~ListBox();
 
     virtual void        Draw( OutputDevice* pDev, const Point& rPos, const Size& rSize, sal_uLong nFlags );
     virtual void        Resize();
@@ -241,8 +241,8 @@ private:
     sal_uInt16          GetSavedValue();
 
 public:
-                    MultiListBox( Window* pParent, WinBits nStyle = 0 );
-                    MultiListBox( Window* pParent, const ResId& rResId );
+    explicit        MultiListBox( Window* pParent, WinBits nStyle = 0 );
+    explicit        MultiListBox( Window* pParent, const ResId& rResId );
 };
 
 #endif  // _SV_LSTBOX_HXX
diff --git a/include/vcl/menu.hxx b/include/vcl/menu.hxx
index c9bc3b538711..d0f0c0c08988 100644
--- a/include/vcl/menu.hxx
+++ b/include/vcl/menu.hxx
@@ -80,7 +80,7 @@ struct ImplMenuDelData
     ImplMenuDelData* mpNext;
     const Menu* mpMenu;
 
-    ImplMenuDelData( const Menu* pMenu );
+    explicit ImplMenuDelData( const Menu* );
     ~ImplMenuDelData();
 
     bool isDeleted() const { return mpMenu == 0; }
@@ -181,7 +181,7 @@ public:
     SAL_DLLPRIVATE Menu*            ImplGetStartedFrom() const { return pStartedFrom; }
 
                             Menu();
-                            Menu( sal_Bool bMenuBar );
+    explicit                Menu( sal_Bool bMenuBar );
     SAL_DLLPRIVATE Window*  ImplGetWindow() const { return pWindow; }
     void ImplSelectWithStart( Menu* pStartMenu = NULL );
 
@@ -463,8 +463,8 @@ protected:
 public:
                         PopupMenu();
                         PopupMenu( const PopupMenu& rMenu );
-                        PopupMenu( const ResId& rResId );
-                        ~PopupMenu();
+    explicit            PopupMenu( const ResId& );
+    virtual             ~PopupMenu();
 
     void                SetText( const OUString& rTitle )  { aTitleText = rTitle; }
     const OUString&     GetText() const                     { return aTitleText; }
diff --git a/include/vcl/menubtn.hxx b/include/vcl/menubtn.hxx
index 4036ee9059b1..85dc0150b539 100644
--- a/include/vcl/menubtn.hxx
+++ b/include/vcl/menubtn.hxx
@@ -67,9 +67,9 @@ protected:
     SAL_DLLPRIVATE void    ImplLoadRes( const ResId& rResId );
 
 public:
-                    MenuButton( Window* pParent, WinBits nStyle = 0 );
-                    MenuButton( Window* pParent, const ResId& rResId );
-                    ~MenuButton();
+    explicit        MenuButton( Window* pParent, WinBits nStyle = 0 );
+    explicit        MenuButton( Window* pParent, const ResId& );
+    virtual         ~MenuButton();
 
     virtual void    MouseButtonDown( const MouseEvent& rMEvt );
     virtual void    KeyInput( const KeyEvent& rKEvt );
diff --git a/include/vcl/metaact.hxx b/include/vcl/metaact.hxx
index 961baaecd1ff..40dbcdce28db 100644
--- a/include/vcl/metaact.hxx
+++ b/include/vcl/metaact.hxx
@@ -141,7 +141,7 @@ protected:
 
 public:
                         MetaAction();
-                        MetaAction( sal_uInt16 nType );
+    explicit            MetaAction( sal_uInt16 nType );
 
     virtual void        Execute( OutputDevice* pOut );
 
@@ -193,7 +193,7 @@ private:
 public:
                         DECL_META_ACTION( Point, META_POINT_ACTION )
 
-                        MetaPointAction( const Point& rPt );
+    explicit            MetaPointAction( const Point& );
 
     virtual void        Move( long nHorzMove, long nVertMove );
     virtual void        Scale( double fScaleX, double fScaleY );
@@ -236,7 +236,7 @@ private:
 public:
                         DECL_META_ACTION( Rect, META_RECT_ACTION )
 
-                        MetaRectAction( const Rectangle& rRect );
+    explicit            MetaRectAction( const Rectangle& );
 
     virtual void        Move( long nHorzMove, long nVertMove );
     virtual void        Scale( double fScaleX, double fScaleY );
@@ -279,7 +279,7 @@ private:
 public:
                         DECL_META_ACTION( Ellipse, META_ELLIPSE_ACTION )
 
-                        MetaEllipseAction( const Rectangle& rRect );
+    explicit            MetaEllipseAction( const Rectangle& );
 
     virtual void        Move( long nHorzMove, long nVertMove );
     virtual void        Scale( double fScaleX, double fScaleY );
@@ -371,8 +371,8 @@ private:
 public:
                         DECL_META_ACTION( PolyLine, META_POLYLINE_ACTION )
 
-                        MetaPolyLineAction( const Polygon& rPoly );
-                        MetaPolyLineAction( const Polygon& rPoly, const LineInfo& rLineInfo );
+    explicit            MetaPolyLineAction( const Polygon& );
+    explicit            MetaPolyLineAction( const Polygon&, const LineInfo& );
 
     virtual void        Move( long nHorzMove, long nVertMove );
     virtual void        Scale( double fScaleX, double fScaleY );
@@ -392,7 +392,7 @@ private:
 public:
                         DECL_META_ACTION( Polygon, META_POLYGON_ACTION )
 
-                        MetaPolygonAction( const Polygon& rPoly );
+    explicit            MetaPolygonAction( const Polygon& );
 
     virtual void        Move( long nHorzMove, long nVertMove );
     virtual void        Scale( double fScaleX, double fScaleY );
@@ -411,7 +411,7 @@ private:
 public:
                         DECL_META_ACTION( PolyPolygon, META_POLYPOLYGON_ACTION )
 
-                        MetaPolyPolygonAction( const PolyPolygon& rPolyPoly );
+    explicit            MetaPolyPolygonAction( const PolyPolygon& );
 
     virtual void        Move( long nHorzMove, long nVertMove );
     virtual void        Scale( double fScaleX, double fScaleY );
@@ -915,7 +915,7 @@ private:
 public:
                         DECL_META_ACTION( ISectRectClipRegion, META_ISECTRECTCLIPREGION_ACTION )
 
-                        MetaISectRectClipRegionAction( const Rectangle& rRect );
+    explicit            MetaISectRectClipRegionAction( const Rectangle& );
 
     virtual void        Move( long nHorzMove, long nVertMove );
     virtual void        Scale( double fScaleX, double fScaleY );
@@ -934,7 +934,7 @@ private:
 public:
                         DECL_META_ACTION( ISectRegionClipRegion, META_ISECTREGIONCLIPREGION_ACTION )
 
-                        MetaISectRegionClipRegionAction( const Region& rRegion );
+    explicit            MetaISectRegionClipRegionAction( const Region& );
 
     virtual void        Move( long nHorzMove, long nVertMove );
     virtual void        Scale( double fScaleX, double fScaleY );
@@ -1009,7 +1009,7 @@ private:
 public:
                         DECL_META_ACTION( TextColor, META_TEXTCOLOR_ACTION )
 
-                        MetaTextColorAction( const Color& rColor );
+    explicit            MetaTextColorAction( const Color& );
 
     const Color&        GetColor() const { return maColor; }
 };
@@ -1079,7 +1079,7 @@ private:
 public:
                         DECL_META_ACTION( TextAlign, META_TEXTALIGN_ACTION )
 
-                        MetaTextAlignAction( TextAlign aAlign );
+    explicit            MetaTextAlignAction( TextAlign eAlign );
 
     TextAlign           GetTextAlign() const { return maAlign; }
 };
@@ -1095,7 +1095,7 @@ private:
 public:
                         DECL_META_ACTION( MapMode, META_MAPMODE_ACTION )
 
-                        MetaMapModeAction( const MapMode& rMapMode );
+    explicit            MetaMapModeAction( const MapMode& );
 
     virtual void        Scale( double fScaleX, double fScaleY );
 
@@ -1113,7 +1113,7 @@ private:
 public:
                         DECL_META_ACTION( Font, META_FONT_ACTION )
 
-                        MetaFontAction( const Font& rFont );
+    explicit            MetaFontAction( const Font& );
 
     virtual void        Scale( double fScaleX, double fScaleY );
 
@@ -1131,7 +1131,7 @@ private:
 public:
                         DECL_META_ACTION( Push, META_PUSH_ACTION )
 
-                        MetaPushAction( sal_uInt16 nFlags );
+    explicit            MetaPushAction( sal_uInt16 nFlags );
 
     sal_uInt16              GetFlags() const { return mnFlags; }
 };
@@ -1154,7 +1154,7 @@ private:
 public:
                         DECL_META_ACTION( RasterOp, META_RASTEROP_ACTION )
 
-                        MetaRasterOpAction( RasterOp eRasterOp );
+    explicit            MetaRasterOpAction( RasterOp eRasterOp );
 
     RasterOp            GetRasterOp() const { return meRasterOp; }
 };
@@ -1263,12 +1263,12 @@ private:
     virtual sal_Bool    Compare( const MetaAction& ) const;
 
 protected:
-                        ~MetaCommentAction();
+    virtual             ~MetaCommentAction();
 
 public:
-                        MetaCommentAction( sal_Int32 nValue = 0L );
-                        MetaCommentAction( const MetaCommentAction& rAct );
-                        MetaCommentAction( const OString& rComment, sal_Int32 nValue = 0L, const sal_uInt8* pData = NULL, sal_uInt32 nDataSize = 0UL );
+    explicit            MetaCommentAction( sal_Int32 nValue = 0L );
+    explicit            MetaCommentAction( const MetaCommentAction& rAct );
+    explicit            MetaCommentAction( const OString& rComment, sal_Int32 nValue = 0L, const sal_uInt8* pData = NULL, sal_uInt32 nDataSize = 0UL );
 
     virtual void        Move( long nHorzMove, long nVertMove );
     virtual void        Scale( double fScaleX, double fScaleY );
@@ -1294,7 +1294,7 @@ private:
 public:
                         DECL_META_ACTION( LayoutMode, META_LAYOUTMODE_ACTION )
 
-                        MetaLayoutModeAction( sal_uInt32 nLayoutMode );
+    explicit            MetaLayoutModeAction( sal_uInt32 nLayoutMode );
 
     sal_uInt32          GetLayoutMode() const { return mnLayoutMode; }
 };
@@ -1309,7 +1309,7 @@ private:
 public:
                         DECL_META_ACTION( TextLanguage, META_TEXTLANGUAGE_ACTION )
 
-                        MetaTextLanguageAction( LanguageType );
+    explicit            MetaTextLanguageAction( LanguageType );
 
     LanguageType        GetTextLanguage() const { return meTextLanguage; }
 };
diff --git a/include/vcl/morebtn.hxx b/include/vcl/morebtn.hxx
index a715f37357d7..7b5399f41eb1 100644
--- a/include/vcl/morebtn.hxx
+++ b/include/vcl/morebtn.hxx
@@ -50,9 +50,9 @@ protected:
     SAL_DLLPRIVATE void ImplLoadRes( const ResId& rResId );
 
 public:
-                        MoreButton( Window* pParent, WinBits nStyle = 0 );
-                        MoreButton( Window* pParent, const ResId& rResId );
-                        ~MoreButton();
+    explicit            MoreButton( Window* pParent, WinBits nStyle = 0 );
+    explicit            MoreButton( Window* pParent, const ResId& );
+    virtual             ~MoreButton();
 
     void                Click();
 
diff --git a/include/vcl/pngread.hxx b/include/vcl/pngread.hxx
index b36a0ee6106a..cc1218702bfb 100644
--- a/include/vcl/pngread.hxx
+++ b/include/vcl/pngread.hxx
@@ -40,7 +40,7 @@ namespace vcl
 
         /* the PNG chunks are read within the c'tor, so the stream will
         be positioned at the end of the PNG */
-        PNGReader( SvStream& rStm );
+        explicit PNGReader( SvStream& rStm );
         ~PNGReader();
 
         /* an empty preview size hint (=default) will read the whole image
diff --git a/include/vcl/scrbar.hxx b/include/vcl/scrbar.hxx
index 4a1a164121be..78ef0c2c588b 100644
--- a/include/vcl/scrbar.hxx
+++ b/include/vcl/scrbar.hxx
@@ -90,9 +90,9 @@ private:
     DECL_DLLPRIVATE_LINK(       ImplAutoTimerHdl, void* );
 
 public:
-                    ScrollBar( Window* pParent, WinBits nStyle = WB_VERT );
-                    ScrollBar( Window* pParent, const ResId& rResId );
-                    ~ScrollBar();
+    explicit        ScrollBar( Window* pParent, WinBits nStyle = WB_VERT );
+    explicit        ScrollBar( Window* pParent, const ResId& );
+    virtual         ~ScrollBar();
 
     virtual void    MouseButtonDown( const MouseEvent& rMEvt );
     virtual void    Tracking( const TrackingEvent& rTEvt );
@@ -155,7 +155,7 @@ private:
     SAL_DLLPRIVATE void ImplInitSettings();
 
 public:
-                    ScrollBarBox( Window* pParent, WinBits nStyle = 0 );
+    explicit        ScrollBarBox( Window* pParent, WinBits nStyle = 0 );
 
     virtual void    StateChanged( StateChangedType nType );
     virtual void    DataChanged( const DataChangedEvent& rDCEvt );
diff --git a/include/vcl/spin.hxx b/include/vcl/spin.hxx
index 3966034c0938..429230483057 100644
--- a/include/vcl/spin.hxx
+++ b/include/vcl/spin.hxx
@@ -56,8 +56,8 @@ private:
     DECL_DLLPRIVATE_LINK(     ImplTimeout, Timer* );
 
 public:
-                    SpinButton( Window* pParent, WinBits nStyle = 0 );
-                    ~SpinButton();
+    explicit        SpinButton( Window* pParent, WinBits nStyle = 0 );
+    virtual         ~SpinButton();
 
     virtual void    Up();
     virtual void    Down();
diff --git a/include/vcl/spinfld.hxx b/include/vcl/spinfld.hxx
index 4a902d17aeaa..9e4aae9fbd39 100644
--- a/include/vcl/spinfld.hxx
+++ b/include/vcl/spinfld.hxx
@@ -59,7 +59,7 @@ private:
     SAL_DLLPRIVATE void   ImplCalcButtonAreas( OutputDevice* pDev, const Size& rOutSz, Rectangle& rDDArea, Rectangle& rSpinUpArea, Rectangle& rSpinDownArea );
 
 protected:
-                    SpinField( WindowType nTyp );
+    explicit        SpinField( WindowType nTyp );
 
     virtual long    Notify( NotifyEvent& rNEvt );
     virtual void    Command( const CommandEvent& rCEvt );
@@ -70,9 +70,9 @@ protected:
     Rectangle *     ImplFindPartRect( const Point& rPt );
 
 public:
-                    SpinField( Window* pParent, WinBits nWinStyle = 0 );
-                    SpinField( Window* pParent, const ResId& rResId );
-                    ~SpinField();
+    explicit        SpinField( Window* pParent, WinBits nWinStyle = 0 );
+    explicit        SpinField( Window* pParent, const ResId& );
+    virtual         ~SpinField();
 
     virtual sal_Bool    ShowDropDown( sal_Bool bShow );
 
diff --git a/include/vcl/split.hxx b/include/vcl/split.hxx
index 1710ea62f5eb..937ef7d2ab38 100644
--- a/include/vcl/split.hxx
+++ b/include/vcl/split.hxx
@@ -66,9 +66,9 @@ protected:
     SAL_DLLPRIVATE void      ImplInit( Window* pParent, WinBits nWinStyle );
 
 public:
-                        Splitter( Window* pParent, WinBits nStyle = WB_VSCROLL );
-                        Splitter( Window* pParent, const ResId& rResId );
-                        ~Splitter();
+    explicit            Splitter( Window* pParent, WinBits nStyle = WB_VSCROLL );
+    explicit            Splitter( Window* pParent, const ResId& );
+    virtual             ~Splitter();
 
     virtual void        StartSplit();
     virtual void        EndSplit();
diff --git a/include/vcl/syschild.hxx b/include/vcl/syschild.hxx
index 66875e8979b5..2e1af9163860 100644
--- a/include/vcl/syschild.hxx
+++ b/include/vcl/syschild.hxx
@@ -43,10 +43,10 @@ private:
     SAL_DLLPRIVATE          SystemChildWindow & operator= (const SystemChildWindow &);
 
 public:
-                            SystemChildWindow( Window* pParent, WinBits nStyle = 0 );
+    explicit                SystemChildWindow( Window* pParent, WinBits nStyle = 0 );
                             // create a SystemChildWindow using the given SystemWindowData
-                            SystemChildWindow( Window* pParent, WinBits nStyle, SystemWindowData *pData, sal_Bool bShow = sal_True );
-                            ~SystemChildWindow();
+    explicit                SystemChildWindow( Window* pParent, WinBits nStyle, SystemWindowData *pData, sal_Bool bShow = sal_True );
+    virtual                 ~SystemChildWindow();
 
     const SystemEnvData*    GetSystemData() const;
 
diff --git a/include/vcl/tabpage.hxx b/include/vcl/tabpage.hxx
index 3414ec76e834..b8fe9c5581d1 100644
--- a/include/vcl/tabpage.hxx
+++ b/include/vcl/tabpage.hxx
@@ -39,10 +39,10 @@ private:
     SAL_DLLPRIVATE void ImplInitSettings();
 
 public:
-                    TabPage( Window* pParent, WinBits nStyle = 0 );
-                    TabPage(Window *pParent, const OString& rID, const OUString& rUIXMLDescription);
+    explicit        TabPage( Window* pParent, WinBits nStyle = 0 );
+    explicit        TabPage( Window *pParent, const OString& rID, const OUString& rUIXMLDescription );
 
-                    TabPage( Window* pParent, const ResId& rResId );
+    explicit        TabPage( Window* pParent, const ResId& rResId );
 
     virtual void    Paint( const Rectangle& rRect );
     virtual void    Draw( OutputDevice* pDev, const Point& rPos, const Size& rSize, sal_uLong nFlags );
diff --git a/include/vcl/virdev.hxx b/include/vcl/virdev.hxx
index 5d8a70e8f3dc..41caf3e0eef8 100644
--- a/include/vcl/virdev.hxx
+++ b/include/vcl/virdev.hxx
@@ -72,7 +72,7 @@ public:
         indicate: take default screen depth. Only 0, 1 and 8
         are allowed here, with 1 denoting binary mask and 8 a graylevel mask.
      */
-                        VirtualDevice( sal_uInt16 nBitCount = 0 );
+    explicit            VirtualDevice( sal_uInt16 nBitCount = 0 );
 
     /** Create a virtual device of size 1x1
 
@@ -84,7 +84,7 @@ public:
         indicate: take default screen depth. Only 0 and 1
         are allowed here, with 1 denoting binary mask.
      */
-                        VirtualDevice( const OutputDevice& rCompDev,
+     explicit           VirtualDevice( const OutputDevice& rCompDev,
                                        sal_uInt16 nBitCount = 0 );
 
     /** Create a virtual device  of size 1x1 with alpha channel
@@ -102,14 +102,14 @@ public:
         indicate: take default screen depth. Only 0 and 1
         are allowed here, with 1 denoting binary mask.
      */
-                        VirtualDevice( const OutputDevice& rCompDev,
+     explicit           VirtualDevice( const OutputDevice& rCompDev,
                                        sal_uInt16 nBitCount, sal_uInt16 nAlphaBitCount );
 
     /** Create a virtual device using an existing system dependent device or graphics context
         Any rendering will happen directly on the context and not on any intermediate bitmap.
         Note: This might not be suported on all platforms !
     */
-                        VirtualDevice( const SystemGraphicsData *pData, sal_uInt16 nBitCount );
+    explicit            VirtualDevice( const SystemGraphicsData *pData, sal_uInt16 nBitCount );
 
     virtual             ~VirtualDevice();
 
diff --git a/include/vcl/wrkwin.hxx b/include/vcl/wrkwin.hxx
index d151d1f12232..feca149699e2 100644
--- a/include/vcl/wrkwin.hxx
+++ b/include/vcl/wrkwin.hxx
@@ -57,15 +57,15 @@ private:
     SAL_DLLPRIVATE WorkWindow&  operator =( const WorkWindow& rWin );
 
 protected:
-                        WorkWindow( WindowType nType );
+    explict         WorkWindow( WindowType nType );
     SAL_DLLPRIVATE void ImplInit( Window* pParent, WinBits nStyle, SystemParentData* pSystemParentData = NULL );
     SAL_DLLPRIVATE void ImplSetFrameState( sal_uLong aFrameState );
 
 public:
-                    WorkWindow( Window* pParent, WinBits nStyle = WB_STDWORK );
-                    WorkWindow( Window* pParent, const ::com::sun::star::uno::Any& aSystemWorkWindowToken, WinBits nStyle = WB_STDWORK );
-                    WorkWindow( SystemParentData* pParent ); // Not in the REMOTE-Version
-                    ~WorkWindow();
+    explicit        WorkWindow( Window* pParent, WinBits nStyle = WB_STDWORK );
+    explicit        WorkWindow( Window* pParent, const ::com::sun::star::uno::Any& aSystemWorkWindowToken, WinBits nStyle = WB_STDWORK );
+    explicit        WorkWindow( SystemParentData* pParent ); // Not in the REMOTE-Version
+    virtual         ~WorkWindow();
 
     virtual sal_Bool    Close();