+struct mswindows_subwindow_data
+{
+ HWND clip_window;
+};
+
+#define MSWINDOWS_SUBWINDOW_DATA(i) \
+((struct mswindows_subwindow_data *) (i)->data)
+
+#define IMAGE_INSTANCE_MSWINDOWS_CLIPWINDOW(i) \
+ (MSWINDOWS_SUBWINDOW_DATA (i)->clip_window)
+
+#define XIMAGE_INSTANCE_MSWINDOWS_CLIPWINDOW(i) \
+ IMAGE_INSTANCE_MSWINDOWS_CLIPWINDOW (XIMAGE_INSTANCE (i))
+