netbsd man page for d_yield_proc

d_yield_proc(3alleg4)						  Allegro manual					     d_yield_proc(3alleg4)

NAME
       d_yield_proc - Invisible dialog procedure that yields CPU time slices. Allegro game programming library.

SYNOPSIS
       #include <allegro.h>

       int d_yield_proc(int msg, DIALOG *d, int c);

DESCRIPTION
       An invisible helper object that yields time slices for the scheduler (if the system supports it) when the GUI has nothing to do but waiting
       for user actions. You should put one instance of this object in each dialog array because it may be  needed  on	systems  with  an  unusual
       scheduling algorithm (for instance QNX) in order to make the GUI fully responsive.

SEE ALSO
       rest(3alleg4), exgui(3alleg4)

Allegro 							   version 4.4.2					     d_yield_proc(3alleg4)