php man page for find_dialog_focus

find_dialog_focus(3alleg4)					  Allegro manual					find_dialog_focus(3alleg4)

NAME
       find_dialog_focus - Searches the dialog for the object which has the input focus. Allegro game programming library.

SYNOPSIS
       #include <allegro.h>

       int find_dialog_focus(DIALOG *dialog);

DESCRIPTION
       Searches  the  dialog for the object which has the input focus, returning an index or -1 if the focus is not set. This is useful if you are
       calling do_dialog() several times in a row and want to leave the focus in the same place it was when the dialog was last displayed, as  you
       can call do_dialog(dlg, find_dialog_focus(dlg));

SEE ALSO
       do_dialog(3alleg4), init_dialog(3alleg4), offer_focus(3alleg4)

Allegro 							   version 4.4.2					find_dialog_focus(3alleg4)