EXAMPLE

case MUIV_Application_ReturnID_Quit:
{
   LONG active;

   get(pop1,MUIA_Popasl_Active,&active);
   if (!active) get(pop2,MUIA_Popasl_Active,&active);
   if (!active) get(pop3,MUIA_Popasl_Active,&active);
   if (!active) get(pop4,MUIA_Popasl_Active,&active);

   if (active)
      MUI_Request(app,window,0,NULL,"OK",
                  "Cannot quit now, still some asl popups opened.");
   else
      running = FALSE;
}
break;