Knowledge Base

BUG: Form Falls to Background When MsgBox Appears

Article ID: 189741

Article Last Modified on 5/13/2003

Microsoft Visual Basic 5.0 Learning Edition
Microsoft Visual Basic 6.0 Learning Edition
Microsoft Visual Basic 5.0 Professional Edition
Microsoft Visual Basic 6.0 Professional Edition
Microsoft Visual Basic 5.0 Enterprise Edition
Microsoft Visual Basic 6.0 Enterprise Edition

This article was previously published under Q189741

SYMPTOMS

When a project has two or more visible forms and a message box is displayed, one or more forms fall to the background, possibly behind other forms. This behavior did not occur in Visual Basic version 4.0.

CAUSE

This problem occurs when a MsgBox is displayed from a form that has the following properties set:

   ShowInTaskBar = False
   BorderStyle = 3-FixedDialog

RESOLUTION

Change the ShowInTaskBar property to True or the BorderStyle property to something other than 3-FixedDialog.

STATUS

Microsoft has confirmed this to be a bug in the Microsoft products listed at the beginning of this article. We are researching this bug and will post new information here in the Microsoft Knowledge Base as it becomes available.

MORE INFORMATION

Steps To Reproduce

Start a new Standard EXE project in Visual Basic. Form1 is created by default.
Add a new form (Form2) to the project.

In the Form1 Click event, place the following code:

      Private Sub Form1_Click()
         Form2.Show
      End Sub

In the Form2 Click event, place the following code.

      Private Sub Form2_Click()
         MsgBox "Where's the Form?"
      End Sub

Change the BorderStyle property of Form2 to number 3-Fixed dialog.
Change the ShowInTaskBar property of Form2 to False.
Press the F5 key to run the project.
Click on Form1 and then click Form2. The MsgBox is displayed and then Form2 drops to the background, possibly behind Form1.

Additional query words: kbDSupport kbVBp500bug kbVBp400bug kbMessageBox kbdss kbVBp600bug

Keywords: kbbug KB189741