Microsoft KB Archive/173943

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The information in this article applies to:


 * Microsoft Visual Basic Professional and Enterprise Editions for Windows, version 5.0

on the following platforms: NT

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SYMPTOMS
The ToolTip for a TreeView node does not appear as expected when the node text exceeds the width of the TreeView control. This problem occurs with Windows NT and COMCTL32.OCX version 5.00.3714.

RESOLUTION
To work around this problem, you may use the MouseMove event of the TreeView control to set the ToolTipText of the TreeView control so that it matches the text of the node:

Private Sub TreeView1_MouseMove(Button As Integer, Shift As Integer, _      x As Single, y As Single)

Dim n As Node

Set n = TreeView1.HitTest(x, y)

If Not (n Is Nothing) Then TreeView1.ToolTipText = n.Text Else TreeView1.ToolTipText = "" End If

End Sub

You may want to implement this workaround only for users running Windows NT. For information about determining which operating system is in use, please see the following article in the Microsoft Knowledge Base:

"Q189249 : HOWTO: Determine Which 32-bit Operating System Is Being Used"

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 Basic 6.0.

Steps to Reproduce Behavior
 Start a new "Standard EXE" project in Visual Basic on Windows NT. Click Components on the Project menu. Check "Microsoft Windows Common Controls 5.0" and click OK. Add a TreeView control to Form1.  Add the following code to Form1: Private Sub Form_Load

TreeView1.Width = 2000 TreeView1.Nodes.Add, , , _ "This is a line of really, really, really, really long text"

End Sub  Press the F5 key to start the program. NOTE: The TreeView control should be less than the width of the node text. Move the cursor over the node. Note that the ToolTip for the node does not appear as expected.

Additional query words: kbVBp500bug kbVBp600fix kbVBp kbdsd kbDSupport kbControl

Keywords         : Version          : Platform         : NT WINDOWS Issue type       : kbbug Last Reviewed: June 10, 1999