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al_win_remove_window_callback - Allegro 5 API
#include <allegro5/allegro_windows.h> 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.