Types of screen API objects.
#include <screen/screen.h>
enum { SCREEN_OBJECT_TYPE_CONTEXT = 0 SCREEN_OBJECT_TYPE_GROUP = 1 SCREEN_OBJECT_TYPE_DISPLAY = 2 SCREEN_OBJECT_TYPE_DEVICE = 3 SCREEN_OBJECT_TYPE_PIXMAP = 4 SCREEN_OBJECT_TYPE_WINDOW = 8 };