Disabled Restore,Move,Minimize,Maximize,Separator,Close Windows MDIForm VB6

Berikut ini adalah cara men-disabled tombol close di MDIForm di visual basic 6, untuk mempraktekannya siapkan :

          Option Explicit

          Private Declare Function DeleteMenu _
                          Lib "user32" (ByVal hMenu As Long, _
                          ByVal nPosition As Long, _

                          ByVal wFlags As Long) As Long

          Private Declare Function GetSystemMenu _
                          Lib "user32" (ByVal hwnd As Long, _
                          ByVal bRevert As Long) As Long

          Private Const MF_BYPOSITION = &H400&
          
          Dim blnKeluar As Boolean

          Dim hMenu As Long
          
          Private Sub RemoveMenus(frm As Form, _
                       remove_restore As Boolean, _

                       remove_move As Boolean, _
                       remove_size As Boolean, _
                       remove_minimize As Boolean, _
                       remove_maximize As Boolean, _
                       remove_seperator As Boolean, _

                       remove_close As Boolean)

            'Get the form's system menu handle.
            hMenu = GetSystemMenu(hwnd, False)

            If remove_close Then DeleteMenu hMenu, 6, MF_BYPOSITION
            If remove_seperator Then DeleteMenu hMenu, 5, MF_BYPOSITION
            If remove_maximize Then DeleteMenu hMenu, 4, MF_BYPOSITION
            If remove_minimize Then DeleteMenu hMenu, 3, MF_BYPOSITION

            If remove_size Then DeleteMenu hMenu, 2, MF_BYPOSITION
            If remove_move Then DeleteMenu hMenu, 1, MF_BYPOSITION
            If remove_restore Then DeleteMenu hMenu, 0, MF_BYPOSITION
          End Sub

          Private Sub MDIForm_QueryUnload(Cancel As Integer, UnloadMode As Integer)
            If blnKeluar = False Then
              Cancel = -1
            Else

              UnloadMode = 1
            End If
          End Sub

          Private Sub MDIForm_Load()
            RemoveMenus Me, False, False, _
            False, False, False, True, True
            blnKeluar = False
          End Sub

          Private Sub mnuExit_Click()
            blnKeluar = True
            Unload Me

          End Sub

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