exupdate(3)                     Allegro manual                     exupdate(3)



NAME
       exupdate - Supporting different screen update methods in a single
       program. Allegro game programming library.

SYNOPSIS
       #include <allegro.h>


       Example exupdate

DESCRIPTION
       This program demonstrates how to support double buffering, page
       flipping, and triple buffering as options within a single program, and
       how to make things run at a constant rate no matter what the speed of
       your computer. You have to use this example from the command line to
       specify as first parameter a number which represents the type of video
       update you want: 1 for double buffering with memory bitmaps, 2 for page
       flipping, 3 for triple buffering and 4 for double buffering with system
       bitmaps. After this, a dialog allows you to select a screen resolution
       and finally you will see a kaleidoscopic animation, along with a frames
       per second counter on the top left of the screen.


SEE ALSO
       BITMAP(3), END_OF_FUNCTION(3), END_OF_MAIN(3), LOCK_FUNCTION(3),
       LOCK_VARIABLE(3), PALETTE(3), SCREEN_H(3), SCREEN_W(3),
       acquire_bitmap(3), allegro_error(3), allegro_init(3),
       allegro_message(3), bitmap_color_depth(3), blit(3), clear_bitmap(3),
       create_bitmap(3), create_system_bitmap(3), create_video_bitmap(3),
       desktop_palette(3), destroy_bitmap(3), enable_triple_buffer(3),
       fixcos(3), fixed(3), fixmul(3), fixsin(3), fixtoi(3), font(3),
       ftofix(3), generate_332_palette(3), gfx_capabilities(3),
       gfx_mode_select_ex(3), install_int_ex(3), install_keyboard(3),
       install_mouse(3), install_timer(3), keypressed(3), line(3), makecol(3),
       poll_scroll(3), release_bitmap(3), request_video_bitmap(3), screen(3),
       set_color_depth(3), set_gfx_mode(3), set_palette(3),
       show_video_bitmap(3), textout_ex(3), textprintf_ex(3), triangle(3),
       vsync(3), xor_mode(3)



Allegro                          version 4.2.3                     exupdate(3)
