Form won't open

I have a mdi app which uses an icon I put in the sys tray.

When I double click on the icon (and the app is minimized) the app is maximized and a child form is opened. This works ok.

If I double click on the icon (and the app is in any state) the app should appear and the child form should either be loaded of have focus set to it. This does not work. The mdi form does not even appear.

Can anybody explain why and how to correct this.

VB Code:

Private Sub MDIForm_MouseMove(Button As Integer, Shift As Integer, X As Single, Y As Single)
 
Static lngMsg As Long
Static blnFlag As Boolean
 
Dim lngResult As Long
 
  lngMsg = X / Screen.TwipsPerPixelX
  
  If blnFlag = False Then
        
    blnFlag = True
    
    Select Case lngMsg
    
      Case WM_LBUTTONDBLCLK
        
        lngResult = SetForegroundWindow(Me.hwnd)
        
        ' Check if RATs is minimized
        If Me.WindowState = vbMinimized Then Me.WindowState = vbMaximized
        
        ' Check if Pinboard is open
        If FormIsOpen("frmRelatedItems") Then
 
          ' Check if Pinboard is minimized
          If frmRelatedItems.WindowState = vbMinimized Then
            frmRelatedItems.WindowState = vbNormal
          Else
            frmRelatedItems.SetFocus
          End If
 
        Else
 
          Load frmRelatedItems
 
        End If
      
    End Select
    
    blnFlag = False
  
  End If
 
End Sub

Why do you check the state's of the form. I would automatically make the main form maximized and the child form normal and have focus. The only check I would do is to see if the child form was open.

Some users may have their mdi form in normal mode, so if it isn't minimized I don't want to change their form size.

If a child form is minimized and you set focus to it, I think it causes an error.

Now I look at it, it seems that the mdi parent will not maximize if any child forms are open, no matter what their state.

Anybody know why?

Bump