enable_triple_buffer - Man Page

#include <allegro.h>

int enable_triple_buffer();

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 particular  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.

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

gfx_capabilities(3), request_scroll(3), request_video_bitmap(3), ex3buf(3), exupdate(3)

ex3buf(3), exupdate(3), gfx_capabilities(3).