Microsoft KB Archive/171838

Knowledge Base

FIX: Crash Compiling Native Code for Assignment of Variant Array

Article ID: 171838

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 Q171838

SYMPTOMS

When compiling to native code with an assignment of a variant array, you may see an application error in Visual Basic 5.0. This does not occur when compiling to p-code.

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

MORE INFORMATION

Steps to Reproduce Behavior

A crash will occur when compiling to native code in either of the following two scenarios:

Scenario 1:

1. Start Visual Basic 5.0 and create a new Standard EXE. This creates a form named Form1 by default as part of a project named Project1 by default.

2. From the General Declarations area of Form1, add the following code:

         Sub MySub(arvArray1 as variant)
             Dim arvArray2() as variant
             arvArray2(1,1) = arvArray1()
         End Sub
                           

3. From the Project menu, select Project1 Properties. In the Project Properties dialog, select Compile to Native Code on the Compile tab.
4. Click OK.
5. From the File menu, select Make Project1.exe. This will produce an application error in VB5.exe.

Scenario 2:

1. Start Visual Basic 5.0 and create a new Standard EXE. This creates a form named Form1 by default as part of a project named Project1 by default. Add a class module to this project by clicking on Add Class Module from the Project menu.

2. In the General Declarations area of the Class module, add the following code:

         Public Property Get MyProp( _
              arvArray1 As Variant) As Variant
              Dim arvArray2() As Variant
              arvArray2(1, 1) = arvArray1()
         End Property
                           

3. From the Project menu, select Project1 Properties. In the Project Properties dialog select Compile to Native Code on the Compile tab.
4. Click OK.
5. From the File menu. select Make Project1.exe. This will produce an application error in Visual Basic 5.0.

Keywords: kbbug kbfix kbvbp500sp2fix kbvs97sp2fix KB171838

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