Microsoft KB Archive/221225

= FIX: Calling Method in User Ctrl w/ParamArray Causes Fatal Exception During Compile =

Article ID: 221225

Article Last Modified on 5/13/2003

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APPLIES TO


 * Microsoft Visual Basic 6.0 Learning Edition
 * Microsoft Visual Basic 6.0 Professional Edition
 * Microsoft Visual Basic 6.0 Enterprise Edition

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This article was previously published under Q221225



SYMPTOMS
If no parameter is passed, a fatal exception occurs in Visual Basic 6.0 when you compile a project that calls a method in a user control with a ParamArray parameter.



RESOLUTION
There is no workaround available for this problem. You must pass at least one parameter to avoid it.



STATUS
Microsoft has confirmed that this is a bug in the Microsoft products that are listed at the beginning of this article.

This bug was corrected in Visual Studio 6.0 Service Pack 3. For more information about Visual Studio service packs, please see the following articles in the Microsoft Knowledge Base:

194022 INFO: Visual Studio 6.0 Service Packs, What, Where, Why

194295 HOWTO: Tell That Visual Studio 6.0 Service Packs Are Installed



Steps to Reproduce Behavior
 Start a new ActiveX control project.  Add the following method: Option Explicit

Public Function PassVararg (ParamArray t As Variant) As Long End Function  Compile the user control. Start a new Standard EXE Project. Form1 is created by default. Make a reference to the user control that you just created. Place an instance of the user control on Form1.</li> Change the name of the user control to Ocx1.</li>  In Form_Load event procedure, add the following code: Dim k as Long k = Ocx1.PassVararg </li> Save the project.</li> Compile the project.

RESULT: A fatal exception occurs. This problem only occurs in an ActiveX control project. It does not happen in an ActiveX DLL project.</li></ol>

Keywords: kbbug kbfix kbctrlcreate kbvs600sp3fix KB221225

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