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.  If  this
       is  not  supported,  this function falls back to the behavior of al_flip_display(3alleg5).
       You  can  query  the  support  for  this  function  using   al_get_display_option(display,
       ALLEGRO_UPDATE_DISPLAY_REGION).

SEE ALSO

       al_flip_display(3alleg5), al_get_display_option(3alleg5)