void composite_startup(gboolean reconfig);
void composite_shutdown(gboolean reconfig);
+void composite_setup_root_window();
+void composite_enable_for_window(Window win);
+
gboolean composite_window_has_alpha(Visual *vis);
XID composite_get_window_picture(Window win, Visual *vis);
Pixmap composite_get_window_pixmap(Window win);