al_win_remove_window_callback - Allegro 5 API
bool al_win_remove_window_callback(ALLEGRO_DISPLAY *display,
bool (*callback)(ALLEGRO_DISPLAY *display, UINT message, WPARAM wparam,
LPARAM lparam, LRESULT *result, void *userdata), void *userdata)
Removes the callback that was previously registered with
al_win_add_window_callback(3alleg5). The userdata pointer must be the same
as what was used during the registration of the callback.
Returns true if the callback was removed.