NAME

       retrace_count - Retrace count simulator. Allegro game programming library.

SYNOPSIS

       #include <allegro.h>

       extern volatile int retrace_count;

DESCRIPTION

       If the retrace simulator is installed, this count is incremented on each vertical retrace;
       otherwise, if the refresh rate is known,  the  count  is  incremented  at  the  same  rate
       (ignoring  retraces);  otherwise, it is incremented 70 times a second. This provides a way
       of controlling the speed of your program without installing user timer functions.

SEE ALSO

       ex3d(3alleg4), exblend(3alleg4), exdbuf(3alleg4), exflip(3alleg4), exlights(3alleg4)