FIX: IDE Crashes When Repeatedly Placing a Control on a Form

 Last reviewed: December 18, 1997
Article ID: Q171818
The information in this article applies to:
  • Microsoft Visual Basic Control Creation, Learning, Professional, and Enterprise Editions for Windows, version 5.0

SYMPTOMS

When you select a control from the Toolbox with the mouse, immediately press the ENTER key to create the control instance on a form, UserDocument, or property page, and then quickly click on the Toolbox again, the following error may occur: 

   "VB5 has created an invalid page fault in module VB5.EXE at
   0137:00568412"

CAUSE

The problem is that the Toolbox registers the two single clicks as a double click. It then assumes that the control to be created has already been selected by the first click. However, when the ENTER key was pressed between the two clicks, the control selection was set back to 0, so the correct control is no longer selected when the second click occurs.

RESOLUTION

Install the Visual Studio 97 Service Pack 2 or allow time for the control to be created before clicking on the Toolbox again.

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 Studio 97 Service Pack 2.

For more information on the Visual Studio 97 Service Pack 2, please see the following article in the Microsoft Knowledge Base: 

   ARTICLE-ID: Q170365
   TITLE     : INFO: Visual Studio 97 Service Packs - What, Where, and Why
For a list of the Visual Basic 5.0 bugs that were fixed in the Visual Studio 97 Service Pack 2, please see the following article in the Microsoft Knowledge Base: 

   ARTICLE-ID: Q171554
   TITLE     : INFO: Visual Basic 5.0 Fixes in Visual Studio 97
               Service Pack 2

MORE INFORMATION

This behavior occurs whenever you click a control on the Toolbox, hit the ENTER key to create the control, and then click on the Toolbox again within the space and time limit of a double-click.

NOTE: This is easier to reproduce if the 'double-click' time set via the Control Panel is increased (set to slower).

Steps to Reproduce Behavior

  1. Create a new Visual Basic 5.0 Standard EXE project.

  2. Click on a control in the Toolbox, immediately press the ENTER key and then quickly click on the same control in the Toolbox.

An invalid page fault may occur if the second click occurs within the space and time limit of the double-click setting. 
Keywords          : vb5all VS97FixlistSP3 VS97FixlistSP2 VB5FixlistSP2
Version           : 5.0
Platform          : WINDOWS
Issue type        : kbbug
Solution Type     : kbfix kbservicepack

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Last reviewed: December 18, 1997
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