opendarwin man page for enable_triple_buffer

enable_triple_buffer(3alleg4)					  Allegro manual				     enable_triple_buffer(3alleg4)

NAME
       enable_triple_buffer - Enables triple buffering. Allegro game programming library.

SYNOPSIS
       #include <allegro.h>

       int enable_triple_buffer();

DESCRIPTION
       If  the	GFX_CAN_TRIPLE_BUFFER bit of the gfx_capabilities field is not set, you can attempt to enable it by calling this function. In par-
       ticular if you are running in mode-X in a clean DOS environment, this routine will enable the timer retrace simulator, which will  activate
       the triple buffering functions.

RETURN VALUE
       Returns zero if triple buffering is enabled, -1 otherwise.

SEE ALSO
       gfx_capabilities(3alleg4), request_scroll(3alleg4), request_video_bitmap(3alleg4), ex3buf(3alleg4), exupdate(3alleg4)

Allegro 							   version 4.4.2				     enable_triple_buffer(3alleg4)