Microsoft KB Archive/171841

= FIX: Dragging Multiple Controls on a Form May Cause Crash =

Article ID: 171841

Article Last Modified on 12/10/2003

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APPLIES TO


 * Microsoft Visual Basic 5.0 Control Creation Edition
 * Microsoft Visual Basic 5.0 Learning Edition
 * Microsoft Visual Basic 5.0 Professional Edition
 * Microsoft Visual Basic 5.0 Enterprise Edition

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This article was previously published under Q171841



SYMPTOMS
Moving all controls on a form may result in the following error:

"VB5 caused an invalid page fault in module VB5.EXE at 0137:00440cb9"



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:

170365 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:

171554 INFO: Visual Basic 5.0 Fixes in Visual Studio 97 Service Pack 2



Steps to Reproduce Behavior

 * 1) Create a new Visual Basic 5.0 Standard EXE project.
 * 2) Add two controls to Form1.
 * 3) Ensure that none of the controls is currently selected.
 * 4) Press CTRL+A, or Edit | Select All to select both controls.
 * 5) Press and hold either the CTRL or SHIFT keys.
 * 6) Click and hold down the left-mouse button.
 * 7) Release the CTRL or SHIFT key or release the left-mouse button.
 * 8) Move the mouse and note the shadow of the controls.
 * 9) Click and release the left-mouse button. An invalid page fault in Visual Basic results.

NOTE: This behavior can be avoided by selecting and moving the controls after ensuring that at least one control has been selected. Additionally, use of the ESC key can circumvent the invalid page fault.

Keywords: kbbug kbfix kbvbp500sp2fix kbvs97sp2fix KB171841

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