man voice_sweep_pan () - Starts a pan sweep for a voice. Allegro game programming library.
NAME
voice_sweep_pan - Starts a pan sweep for a voice. Allegro game programming library.
SYNOPSIS
#include <allegro.h>
void voice_sweep_pan(int voice, int time, int endpan);
DESCRIPTION
Starts a pan sweep (left <-> right movement) from the current position to the specified ending position, lasting for time milliseconds.