1. added wxFont::GetHFONT() const (GetResourceHandle() is not const...)

2. added GetHfont[Of] convenience macros to msw/private.h
3. wxWindow::GetCharWidth/Height() now use correct font


git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/branches/WX_2_2_BRANCH@7643 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

include/wx/msw/font.h

@@ -78,6 +78,11 @@ public:
     virtual bool RealizeResource();
     virtual WXHANDLE GetResourceHandle();
     virtual bool FreeResource(bool force = FALSE);
+
+    // for consistency with other wxMSW classes and to have a const
+    // GetResourceHandle()-like function we have a synonym for it
+    WXHFONT GetHFONT() const;
+
     /*
        virtual bool UseResource();
        virtual bool ReleaseResource();