1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
|
.TH al_update_display_region 3 "" "Allegro reference manual"
.SH NAME
.PP
al_update_display_region \- Allegro 5 API
.SH SYNOPSIS
.IP
.nf
\f[C]
#include\ <allegro5/allegro.h>
void\ al_update_display_region(int\ x,\ int\ y,\ int\ width,\ int\ height)
\f[]
.fi
.SH DESCRIPTION
.PP
Does the same as al_flip_display(3), but tries to update only the
specified region.
With many drivers this is not possible, but for some it can improve
performance.
.PP
The ALLEGRO_UPDATE_DISPLAY_REGION option (see al_get_display_option(3))
will specify the behavior of this function in the display.
.SH SEE ALSO
.PP
al_flip_display(3), al_get_display_option(3)
|
