window_set_cursor

With this function you can set the cursor for the game window to any one of the constants listed below (to find the current cursor being used you can use the function window_get_cursor() which will also return one of these constants):

Constant	Cursor
cr_none
cr_default
cr_arrow
cr_cross
cr_beam
cr_size_nesw
cr_size_ns
cr_size_nwse
cr_size_we
cr_uparrow
cr_hourglass
cr_drag
cr_appstart
cr_handpoint
cr_size_all

Syntax:

window_set_cursor(cursor);

Returns:

N/A

Example:

if mouse_check_button_pressed(mb_left)
    {
    window_set_cursor(cr_drag);
    }

The above code will change the window cursor to the standard windows drag cursor if the left mouse button has been pressed.