FIX: Maximized Win95 MDI Child Form Disappears

• Microsoft Visual Basic Standard, Professional, and Enterprise Editions, 32-bit only, 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 and Windows NT 4.0 only 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 and Windows NT 4.0. 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 = 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: kbVBp400bug kbWinOS98fix kbVBp500bug kbDSupport kbdsd

Keywords : kbGrpVB
Version : 4.00
Platform : NT WINDOWS
Issue type : kbbug