Article: Q145619
Product(s): Microsoft Visual Basic for Windows
Version(s): WINDOWS:4.0
Operating System(s):
Keyword(s): kbVBp400bug kbVBp500bug kbOSWin98fix kbGrpDSVB kbDSupport
Last Modified: 11-JAN-2001
-------------------------------------------------------------------------------
The information in this article applies to:
- Microsoft Visual Basic Standard Edition, 32-bit, for Windows, version 4.0
- Microsoft Visual Basic Professional Edition, 32-bit, for Windows, version 4.0
- Microsoft Visual Basic Enterprise Edition, 32-bit, for Windows, version 4.0
-------------------------------------------------------------------------------
SYMPTOMS
========
Under certain circumstances, a maximized MDI child form is invisible and cannot
be made visible. The problem occurs under Windows 95, Windows NT 4.0, and
Windows 2000 when using the 32-bit version of Visual Basic 4.0.
RESOLUTION
==========
When the MaxButton property of Form1 is set to True, the problem does not occur.
STATUS
======
Microsoft has confirmed this to be an issue in Microsoft Windows 95, Windows NT
4.0, and Windows 2000. This problem has been fixed in Microsoft Windows 98.
MORE INFORMATION
================
Steps to Reproduce Behavior
---------------------------
1. Start Visual Basic 4.0, 32-bit. If it is already running, click New Project
on the File menu.
2. Use the Insert/MDI Form menu option to add an MDIForm to the project.
3. In the Design Environment Property window, set the following properties for
Form1:
MinButton = False
MaxButton = False
ControlBox = False
MDIChild = True
WindowState = 2 - Maximized
Caption =
Borderstyle = 0 - None 'Options 1 - 5 will also work.
4. Run the application. Form1 will not be visible.
Workaround
----------
1. Start Visual Basic 4.0, 32-bit. If it is already running, click New Project
on the File menu.
2. Use the Insert/MDI Form menu option to add an MDIForm to the project.
3. In the Design Environment Property window, set the following properties for
Form1:
MinButton = False MaxButton = False ControlBox = False MDIChild = True
WindowState = 0 - Normal Caption = Borderstyle = 0 - None 'Options 1 - 5 will
also work.
4. In the General Declaration section of Form1, paste the following:
Private Sub Form_Load()
'You could copy the following 4 lines to the Resize
'event of MDIForm1 as well for best results.
Form1.Top = 0
Form1.Left = 0
Form1.Width = MDIForm1.Width - 185
Form1.Height = MDIForm1.Height - 470
End Sub
5. Run the application. Form1 will be visible.
Additional query words:
======================================================================
Keywords : kbVBp400bug kbVBp500bug kbOSWin98fix kbGrpDSVB kbDSupport
Technology : kbVBSearch kbAudDeveloper kbVB400Search kbVB400
Version : WINDOWS:4.0
Issue type : kbbug
Solution Type : kbfix
=============================================================================