The following mouse pointers are built-in and may be assigned to any of the mouse pointer variables. Of course, you can also define your own custom mouse pointers using an icon file.
MOUSE_INACTIVE_POINTER (0)
Same as mouse_drag_pointer = MOUSE_ACTIVE_POINTER.
MOUSE_ACTIVE_POINTER (1)
Same as mouse_drop_pointer = MOUSE_ACTIVE_POINTER.
MOUSE_DRAG_POINTER
Same as mouse_over_pointer = MOUSE_INACTIVE_POINTER.
MOUSE_DROP_POINTER
Same as mouse_over_pointer = MOUSE_ACTIVE_POINTER.