added a menu allowing to change the border style used by the widget

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@38772 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

samples/widgets/slider.cpp

@@ -93,6 +93,7 @@ public:
     virtual ~SliderWidgetsPage(){};
 
     virtual wxControl *GetWidget() const { return m_slider; }
+    virtual void RecreateWidget() { CreateSlider(); }
 
 protected:
     // event handlers
@@ -333,7 +334,7 @@ void SliderWidgetsPage::Reset()
 
 void SliderWidgetsPage::CreateSlider()
 {
-    int flags = 0;
+    int flags = ms_defaultFlags;
 
     if ( m_chkInverse->GetValue() )
     {