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

       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));

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

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

Allegro                                           version 4.4.3                       find_dialog_focus(3alleg4)

#include<allegro.h>intfind_dialog_focus(DIALOG*dialog);