--- /dev/null
+#ifndef MSP_GRAPHICS_DISPLAY_PLATFORM_H_
+#define MSP_GRAPHICS_DISPLAY_PLATFORM_H_
+
+#include "cocoadisplay.h"
+
+namespace Msp {
+namespace Graphics {
+
+typedef CocoaDisplay *DisplayHandle;
+typedef int MonitorHandle;
+typedef int ModeHandle;
+
+} // namespace Graphics
+} // namespace Msp
+
+#endif