Article: Q160161
Product(s): Microsoft Visual Basic for Windows
Version(s): WINDOWS:4.0
Operating System(s):
Keyword(s): kbGrpDSVB
Last Modified: 11-JAN-2001
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The information in this article applies to:
- Microsoft Visual Basic Standard Edition, 32-bit, for Windows, version 4.0
- Microsoft Visual Basic Professional Edition, 16-bit, for Windows, version 4.0
- Microsoft Visual Basic Professional Edition, 32-bit, for Windows, version 4.0
- Microsoft Visual Basic Enterprise Edition, 16-bit, for Windows, version 4.0
- Microsoft Visual Basic Enterprise Edition, 32-bit, for Windows, version 4.0
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SYMPTOMS
========
With a form that contains at least two controls that are capable of receiving
focus, if the SPACE BAR+ARROW KEY combination is pressed while the focus is on
the control whose click event contains the code "Unload Me," a General
Protection Fault (GPF) will occur.
RESOLUTION
==========
Instead of unloading the form immediately in the click event of a control, place
a Timer control on the form and use it to defer this action for one millisecond
using the following code:
Private Sub Command1_Click()
'''Unload Me
Timer1.Interval = 1
End Sub
Private Sub Timer1_Timer()
Unload Me
End Sub
STATUS
======
Microsoft has confirmed this to be a bug in the Microsoft products listed at the
beginning of this article. This bug has been fixed in Visual Basic 6.0.
MORE INFORMATION
================
Steps to Reproduce Problem
--------------------------
1. Start a new project in Visual Basic. Form1 is created by default.
2. Place two CommandButtons, Command1 and Command2, on Form1.
3. Place the following code in the Command1_Click event:
Private Sub Command1_Click()
Unload Me
End Sub
4. Run the project by pressing the F5 key.
5. With the focus on Command1, press the SPACE BAR+ARROW KEY combination and
note that a GFP occurs.
Additional query words: kbVBp400bug kbVBp600fix kbVBp kbdsd kbDSupport kbCtrl
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Keywords : kbGrpDSVB
Technology : kbVBSearch kbAudDeveloper kbVB400Search kbVB400 kbVB16bitSearch
Version : WINDOWS:4.0
Issue type : kbbug
Solution Type : kbfix
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