update_dialog - Man Page

#include <allegro.h>

int update_dialog(DIALOG_PLAYER *player);

Updates the status of a dialog object returned by init_dialog(). Returns  TRUE if the dialog is still active, or FALSE if it has terminated. Upon a  return value of FALSE, it is up to you whether to call shutdown_dialog()  or to continue execution. The object that requested the exit can be  determined from the player->obj field.

init_dialog(3)

DIALOG_PLAYER(3), init_dialog(3).