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/cocoa/dcmemory.h

@@ -45,7 +45,7 @@ protected:
 // Blitting
     virtual bool CocoaDoBlitOnFocusedDC(wxCoord xdest, wxCoord ydest,
         wxCoord width, wxCoord height, wxCoord xsrc, wxCoord ysrc,
-        int logicalFunc, bool useMask, wxCoord xsrcMask, wxCoord ysrcMask);
+        wxRasterOperationMode logicalFunc, bool useMask, wxCoord xsrcMask, wxCoord ysrcMask);
 
 private:
     void Init();