oh thanks, but for some reason when i try to play test the game in Gamemaker Studio 1.4 (im using the 1.4.1749 version) it gives me this:
Error : display_set_gui_size(0) : cannot use function/script name for a variable, using "__display_set_gui_size_hook"
Error : display_set_gui_maximize(0) : cannot use function/script name for a variable, using "__display_set_gui_maximize_hook"
Error : display_set_gui_maximise(0) : cannot use function/script name for a variable, using "__display_set_gui_maximize_hook"