removing max button on mdi parent

search gave me no luck so can anyone tell me how to remove the max button within an mdi parent? the max button on the top right of the form.

thanks in advance.

I have just writen this code. Works on WinXP-SP2. Haven't tested on other platform:

VB Code:

'Inside MDIForm
Option Explicit
 
Private Declare Function GetSystemMenu Lib "user32" _
                            (ByVal hWnd As Long, _
                            ByVal bRevert As Long) As Long
 
Private Declare Function DeleteMenu Lib "user32" _
                            (ByVal hMenu As Long, _
                            ByVal nPosition As Long, _
                            ByVal wFlags As Long) As Long
 
Private Declare Function DrawMenuBar Lib "user32" _
                            (ByVal hWnd As Long) As Long
 
Private Declare Function GetWindowLong Lib _
                 "user32" Alias "GetWindowLongA" (ByVal hWnd _
                 As Long, ByVal nIndex As Long) As Long
 
Private Declare Function SetWindowLong Lib _
                "user32" Alias "SetWindowLongA" (ByVal hWnd _
                  As Long, ByVal nIndex As Long, ByVal dwNewLong _
                 As Long) As Long
 
Private Const MF_BYCOMMAND = &H0
Private Const SC_MAXIMIZE As Long = &HF030&
 
Private Const GWL_STYLE& = (-16)
Private Const WS_MAXIMIZEBOX As Long = &H10000
 
'=================================================================
Private Sub MDIForm_Load()
 
    DisableMaxButton
 
End Sub
 
'=================================================================
Public Sub DisableMaxButton()
 
    'This sub Removes Maximize button from control box and system menu.
    Dim hMenu As Long
    Dim OldStyle As Long
 
    'Remove Max button
    OldStyle = GetWindowLong(Me.hWnd, GWL_STYLE)
    SetWindowLong Me.hWnd, GWL_STYLE, OldStyle And (Not WS_MAXIMIZEBOX)
        
    'Remove from system menu
    hMenu = GetSystemMenu(Me.hWnd, 0&)
 
    If hMenu Then
        Call DeleteMenu(hMenu, SC_MAXIMIZE, MF_BYCOMMAND)
        Call DrawMenuBar(Me.hWnd)
        
    End If
 
End Sub

thanks for the code. will have to test it on other platforms too. and will get back to you.