added wxIconLocation; minor fixes to wxIcon on some platforms

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@21279 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

include/wx/msw/icon.h

@@ -53,15 +53,19 @@ public:
 
         // from raw data
     wxIcon(const char bits[], int width, int height);
+
         // from XPM data
     wxIcon(const char **data) { CreateIconFromXpm(data); }
 
     wxIcon(char **data) { CreateIconFromXpm((const char **)data); }
+
         // from resource/file
     wxIcon(const wxString& name,
            long type = wxBITMAP_TYPE_ICO_RESOURCE,
            int desiredWidth = -1, int desiredHeight = -1);
 
+    wxIcon(const wxIconLocation& loc);
+
     virtual ~wxIcon();
 
     virtual bool LoadFile(const wxString& name,