FreeBSD Manual Pages
vsync(3) Allegro manual vsync(3) NAME vsync - Waits for a vertical retrace to begin. Allegro game programming library. SYNOPSIS #include <allegro.h> void vsync(); DESCRIPTION Waits for a vertical retrace to begin. The retrace happens when the electron beam in your monitor has reached the bottom of the screen and is moving back to the top ready for another scan. During this short pe- riod the graphics card isn't sending any data to the monitor, so you can do things to it that aren't possible at other times, such as alter- ing the palette without causing flickering (snow). Allegro will auto- matically wait for a retrace before altering the palette or doing any hardware scrolling, though, so you don't normally need to bother with this function. SEE ALSO set_palette(3), scroll_screen(3) Allegro version 4.4.3 vsync(3)
NAME | SYNOPSIS | DESCRIPTION | SEE ALSO
Want to link to this manual page? Use this URL:
<https://man.freebsd.org/cgi/man.cgi?query=vsync&sektion=3&manpath=FreeBSD+Ports+14.3.quarterly>