DOCUMENT:Q173943  18-SEP-1997  [vbwin]
TITLE   :BUG: TreeView ToolTips Do Not Appear on Windows NT
PRODUCT :Microsoft Visual Basic for Windows
PROD/VER:WINDOWS:5.0
OPER/SYS:NT WINDOWS
KEYWORDS:vb5all VBKBAX VBKBComp

======================================================================
---------------------------------------------------------------------
The information in this article applies to:

 - Microsoft Visual Basic Professional and Enterprise Editions for
   Windows, version 5.0
   on the following platform: NT
---------------------------------------------------------------------

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:

   ARTICLE-ID: Q137032
   TITLE     : 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. 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 Behavior
---------------------------

1. Start a new "Standard EXE" project in Visual Basic on Windows NT.

2. Click Components on the Project menu. Check "Microsoft Windows Common
   Controls 5.0" and click OK.

3. Add a TreeView control to Form1.

4. 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

5. Press the F5 key to start the program. NOTE: The TreeView control should
   be less than the width of the node text.

6. Move the cursor over the node. Note that the ToolTip for the node does
   not appear as expected.
======================================================================
Keywords          : vb5all VBKBAX VBKBComp
Version           : WINDOWS:5.0
Platform          : NT WINDOWS
Issue type        : kbbug

=============================================================================

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Copyright Microsoft Corporation 1997.