>Is there a way to switch window type property at a runtime from modal to modeless and oposit. I want to forbid user navigate to other open window in vfp app when i start some action till job is done. Maybe some other solution?
>
>Thanks in advance.

WITH This
   IF .Visible    && Can't switch modality on a visible form. 
      _SCREEN.LockScreen = .T.
      .LockScreen = .T.
      .Visible = .F.
      .Show(1)   && Show modal.
   ELSE
      .Show(1)   && Show modal.
   ENDIF   
   * If form has ShowWindow = 2, you need to issue a READEVENTS to cause a wait state.
   IF .ShowWindow = 2
      READ EVENTS   
   ENDIF
ENDWITH