NAME

       al_update_display_region - Allegro 5 API

SYNOPSIS

              #include <allegro5/allegro.h>

              void al_update_display_region(int x, int y, int width, int height)

DESCRIPTION

       Does  the  same  as  al_flip_display(3alleg5),  but tries to update only the specified region.  With many
       drivers this is not possible, but for some it can improve performance.

       The ALLEGRO_UPDATE_DISPLAY_REGION option (see al_get_display_option(3alleg5)) will specify  the  behavior
       of this function in the display.

SEE ALSO

       al_flip_display(3alleg5), al_get_display_option(3alleg5)

Allegro reference manual                                                     al_update_display_region(3alleg5)()