1. wxDropTarget::OnData() returns wxDragResult now, not bool

2. fixed assert failure in wxMSW::wxListBox
3. wxFileHistory automatically deletes non existinf files from menu
4. wxDropTarget coordinates are client (and not screen) under MSW too
5. wxConvertBitmapToDib and vice versa seem to work!
6. client data field if filled by wxListBox and wxChoice and it's also deleted
   (this just wasn't done before!)


git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@4153 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

include/wx/msw/checklst.h

@@ -16,17 +16,15 @@
 #pragma interface "checklst.h"
 #endif
 
-// No!
-// typedef   unsigned int  size_t;
-#include <stddef.h>
-
 #include "wx/setup.h"
 
 #if !wxUSE_OWNER_DRAWN
   #error  "wxCheckListBox class requires owner-drawn functionality."
 #endif
 
-class wxCheckListBoxItem; // fwd decl, define in checklst.cpp
+#include "wx/listbox.h"
+
+class wxCheckListBoxItem; // fwd decl, defined in checklst.cpp
 
 class WXDLLEXPORT wxCheckListBox : public wxListBox
 {