get_window_background_image — Gets a copy of the background image of the HALCON window.
get_window_background_image returns a copy of the background image set in the HALCON window given by WindowHandle in an image BackgroundImage. This operator is specially useful in cases where the user would like to perform some operations in one of the callback functions of a drawing object attached to the window. See set_drawing_object_callback for more details.
Copy of the background image.
HALCON Window ID.
If the window exists and the specified parameters are correct get_window_background_image returns 2 (H_MSG_TRUE). If necessary an exception is raised.
close_window, detach_background_from_window, attach_drawing_object_to_window