Event handler for OK buttons
[C++]
virtual void OnOK(
   UINT id,
   const CXlControlOK* ctl
);
ID of the button which was pressed.
Pointer to the control which originated the event.
This overrideable function is called whenever a button of type
            CXlControlOK
            is pressed. Its default behaviour is to call EndDialog(TRUE)
            in order to close the dialog.
            
Header: xldialog.h