man d_clear_proc () - Dialog procedure to clear the screen. Allegro game programming library.
NAME
d_clear_proc - Dialog procedure to clear the screen. Allegro game programming library.
SYNOPSIS
#include <allegro.h>
int d_clear_proc(int msg, DIALOG *d, int c);
DESCRIPTION
This just clears the screen when it is drawn. Useful as the first object in a dialog.