freebsd man page for exupdate

exupdate(3alleg4)						  Allegro manual						 exupdate(3alleg4)

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(3alleg4),   END_OF_FUNCTION(3alleg4),   END_OF_MAIN(3alleg4),   LOCK_FUNCTION(3alleg4),	LOCK_VARIABLE(3alleg4),  PALETTE(3alleg4),
       SCREEN_H(3alleg4), SCREEN_W(3alleg4),  acquire_bitmap(3alleg4),	allegro_error(3alleg4),  allegro_init(3alleg4),  allegro_message(3alleg4),
       bitmap_color_depth(3alleg4), blit(3alleg4), clear_bitmap(3alleg4), create_bitmap(3alleg4), create_system_bitmap(3alleg4), create_video_bit-
       map(3alleg4),  desktop_palette(3alleg4),  destroy_bitmap(3alleg4),  enable_triple_buffer(3alleg4),  fixcos(3alleg4),  fixed(3alleg4),  fix-
       mul(3alleg4),  fixsin(3alleg4),	fixtoi(3alleg4), font(3alleg4), ftofix(3alleg4), generate_332_palette(3alleg4), gfx_capabilities(3alleg4),
       gfx_mode_select_ex(3alleg4),  install_int_ex(3alleg4),  install_keyboard(3alleg4),  install_mouse(3alleg4),  install_timer(3alleg4),   key-
       pressed(3alleg4),    line(3alleg4),   makecol(3alleg4),	 poll_scroll(3alleg4),	 release_bitmap(3alleg4),   request_video_bitmap(3alleg4),
       screen(3alleg4), set_color_depth(3alleg4), set_gfx_mode(3alleg4),  set_palette(3alleg4),  show_video_bitmap(3alleg4),  textout_ex(3alleg4),
       textprintf_ex(3alleg4), triangle(3alleg4), vsync(3alleg4), xor_mode(3alleg4)

Allegro 							   version 4.4.2						 exupdate(3alleg4)