added wxRTTI to XRC handlers (patch #752996 by David Falkinder)

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@21078 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

contrib/include/wx/xrc/xh_bmp.h

@@ -20,6 +20,7 @@
 
 class WXXMLDLLEXPORT wxBitmapXmlHandler : public wxXmlResourceHandler
 {
+DECLARE_DYNAMIC_CLASS(wxBitmapXmlHandler)
 public:
     wxBitmapXmlHandler();
     virtual wxObject *DoCreateResource();
@@ -28,6 +29,7 @@ public:
 
 class WXXMLDLLEXPORT wxIconXmlHandler : public wxXmlResourceHandler
 {
+DECLARE_DYNAMIC_CLASS(wxIconXmlHandler)
 public:
     wxIconXmlHandler();
     virtual wxObject *DoCreateResource();