BUG: HalfHeight Forms Closable Even If Closable = False (137411)


The information in this article applies to:

  • Microsoft Visual FoxPro for Windows 3.0
  • Microsoft Visual FoxPro for Windows 3.0b
  • Microsoft Visual FoxPro for Windows 5.0
  • Microsoft Visual FoxPro for Windows 5.0a
This article was previously published under Q137411

SYMPTOMS

If you create a form with a halfheight title bar and set the Closable property of the form to false (.F.), you can still close the form.

WORKAROUND

To avoid the problem, use the QueryUnload event. Put a NODEFAULT in its code to make it impossible to close the form: 
   x = CREATEOBJECT( 'myform' )
   x.Show
   READ EVENTS

   DEFINE CLASS myform AS Form

     HalfHeightCaption = .t.

     Add Object cmdclose AS CommandButton
     cmdclose.Caption = "Close"

     PROCEDURE cmdclose.click
          thisform.release
     ENDPROC

     PROCEDURE QueryUnload
          NODEFAULT
     ENDPROC

     PROCEDURE Destroy
          CLEAR EVENTS
     ENDPROC

   ENDDEFINE

STATUS

Microsoft has confirmed this to be a problem in the Microsoft products listed at the beginning of this article. We are researching this problem and will post new information here in the Microsoft Knowledge Base as it becomes available.

MORE INFORMATION

This problem seems to occur more often when Visual FoxPro is run in Windows 95 rather than Windows NT 4.0. However, the problem may still occur in Windows NT 4.0, usually in Visual FoxPro 5.x. Visual FoxPro 3.0b rarely, if ever, exhibits the problem when run under Windows NT 4.0.

Steps to Reproduce Problem

Execute the following in the Command window: 
   oForm = CREATEOBJECT('Form')
   oForm.HalfHeightCaption = .T.
   oForm.Closable = .F.
   oForm.Show()
   READ EVENTS
Double-click the form's control box to close the form. Although the form appears to close, the READ EVENTS is still in effect. To clear the READ EVENTS and return to the Command window, choose Cancel from the Program menu.
Modification Type:MajorLast Reviewed:5/7/2003
Keywords:kbBug kbcode kbProgramming KB137411
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