initial (not yet working) code for DirectFB port

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@40865 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

include/wx/dfb/dcscreen.h

@@ -0,0 +1,31 @@
+/////////////////////////////////////////////////////////////////////////////
+// Name:        wx/dfb/dcscreen.h
+// Purpose:     wxScreenDC declaration
+// Author:      Vaclav Slavik
+// Created:     2006-08-10
+// RCS-ID:      $Id$
+// Copyright:   (c) 2006 REA Elektronik GmbH
+// Licence:     wxWindows licence
+/////////////////////////////////////////////////////////////////////////////
+
+#ifndef _WX_DFB_DCSCREEN_H_
+#define _WX_DFB_DCSCREEN_H_
+
+#include "wx/dc.h"
+
+class WXDLLIMPEXP_CORE wxScreenDC: public wxDC
+{
+public:
+    wxScreenDC();
+
+    static bool StartDrawingOnTop(wxWindow *WXUNUSED(window))
+        { return true; }
+    static bool StartDrawingOnTop(wxRect *WXUNUSED(rect) = NULL)
+        { return true; }
+    static bool EndDrawingOnTop()
+        { return true; }
+
+    DECLARE_DYNAMIC_CLASS(wxScreenDC)
+};
+
+#endif // _WX_DFB_DCSCREEN_H_