gui_set_screen(3alleg4) Allegro manual gui_set_screen(3alleg4)
NAME
gui_set_screen - Changes the bitmap surface GUI routines draw to. Allegro game programming library.
SYNOPSIS
#include <allegro.h>
void gui_set_screen(BITMAP *bmp);
DESCRIPTION
This function can be used to change the bitmap surface the GUI routines draw to. This can be useful if you are using a double buffering or
page flipping system. Passing NULL will cause the default surface (screen) to be used again. Example:
BITMAP *page[2];
/* Allocate two pages of video memory */
page[0] = create_video_bitmap(SCREEN_W, SCREEN_H);
page[1] = create_video_bitmap(SCREEN_W, SCREEN_H);
/* Page flip */
show_video_bitmap(page[0]);
gui_set_screen(page[0]);
SEE ALSO
gui_get_screen(3alleg4)
Allegro version 4.4.2 gui_set_screen(3alleg4)
