+#if defined(USE_ARGB) && defined(OWN_WINDOW)
+/* 1 if config var set to 1, otherwise 0 */
+extern int use_argb_visual;
+/* 1 if use_argb_visual=1 and argb visual was found, otherwise 0 */
+extern int have_argb_visual;
+#endif
+/* range of 0-255 for alpha */
+extern int own_window_argb_value;
+