loplugin:vclwidgets

Change-Id: I4292b8838b39dbf199da3cfa0f161bae1c75e9e4

include/vcl/slider.hxx

@@ -81,7 +81,8 @@ private:
 
 public:
                     Slider( vcl::Window* pParent, WinBits nStyle = WB_HORZ );
-
+    virtual         ~Slider();
+    virtual void    dispose() SAL_OVERRIDE;
     virtual void    MouseButtonDown( const MouseEvent& rMEvt ) SAL_OVERRIDE;
     virtual void    MouseButtonUp( const MouseEvent& rMEvt ) SAL_OVERRIDE;
     virtual void    Tracking( const TrackingEvent& rTEvt ) SAL_OVERRIDE;

vcl/source/control/slider.cxx

@@ -82,6 +82,17 @@ Slider::Slider( vcl::Window* pParent, WinBits nStyle ) :
     ImplInit( pParent, nStyle );
 }
 
+Slider::~Slider()
+{
+    disposeOnce();
+}
+
+void Slider::dispose()
+{
+    mpLinkedField.clear();
+    Control::dispose();
+}
+
 void Slider::ImplInitSettings()
 {
     vcl::Window* pParent = GetParent();