change generic ints to enums in wxDC (closes #9959)

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@57907 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

include/wx/gdicmn.h

@@ -85,6 +85,13 @@ enum wxBitmapType
     wxBITMAP_TYPE_ANY = 50
 };
 
+//  Polygon filling mode
+enum wxPolygonFillMode
+{
+    wxODDEVEN_RULE = 1,
+    wxWINDING_RULE
+};
+
 // Standard cursors
 enum wxStockCursor
 {