al_update_display_region man page on DragonFly
[printable version]
al_update_display_region(3) al_update_display_region(3)
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(3), but tries to update only the spec‐
ified 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(3))
will specify the behavior of this function in the display.
SEE ALSO
al_flip_display(3), al_get_display_option(3)
Allegro reference manual al_update_display_region(3)
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