Added automatic dialog scrolling ability

Added ability to resize wizard bitmaps automatically
Made it easier to derive from wxWizard and override behaviour,
mainly by making members protected instead of private



git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@50942 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

include/wx/generic/propdlg.h

@@ -103,6 +103,9 @@ public:
     void SetBookCtrl(wxBookCtrlBase* book) { m_bookCtrl = book; }
     wxBookCtrlBase* GetBookCtrl() const { return m_bookCtrl; }
 
+    // Override function in base
+    virtual wxWindow* GetContentWindow() const;
+
     // Set and get the inner sizer
     void SetInnerSize(wxSizer* sizer) { m_innerSizer = sizer; }
     wxSizer* GetInnerSizer() const { return m_innerSizer ; }