wxCocoa: Preliminary wxMemoryDC implementation

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@22212 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

include/wx/cocoa/dcmemory.h

@@ -4,15 +4,15 @@
 // Author:      David Elliott
 // Modified by:
 // Created:     2003/03/16
-// RCS-ID:      $Id:
+// RCS-ID:      $Id$
 // Copyright:   (c) 2003 David Elliott
-// Licence:   	wxWindows license
+// Licence:   	wxWindows licence
 /////////////////////////////////////////////////////////////////////////////
 
 #ifndef __WX_COCOA_DCMEMORY_H__
 #define __WX_COCOA_DCMEMORY_H__
 
-#include "wx/dcclient.h"
+#include "wx/dc.h"
 
 class WXDLLEXPORT wxMemoryDC: public wxDC
 {
@@ -23,6 +23,9 @@ public:
     ~wxMemoryDC(void);
     virtual void SelectObject(const wxBitmap& bitmap);
     virtual void DoGetSize(int *width, int *height) const;
+protected:
+    wxBitmap m_selectedBitmap;
+    WX_NSImage m_cocoaNSImage;
 // DC stack
     virtual bool CocoaLockFocus();
     virtual bool CocoaUnlockFocus();