gui_set_screen.3alleg

Langue: en

Version: version 4.2.2 (debian - 07/07/09)

Section: 3 (Bibliothèques de fonctions)

Sommaire

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(3alleg)