Disable Scrollbar from a Form MDI Container

Question

Does anyone know how to stop Child Forms from moving beyond the screen and displaying a scrollbar?

I wish there was a limit to moving the Child Forms... that they only move up to the screen size and do not go beyond that

I don’t want scrollbars on the main form.

Thank you in advance!

Answer 1

Correct me if I’m wrong, but to deactivate you can follow these attempts:

• Has some control within the shape that is extending the size of it, or is larger than the window itself.
• Change the property AutoScroll for False.
• Change the property AutoScaleMode for Dpi.
• Move some controls to a visible location in the window.

Didn’t you? I found this model on this filing cabinet. Try the following:

1. State this function

<DllImport("user32.dll")> _
Private Shared Function ShowScrollBar(ByVal hWnd As IntPtr, ByVal wBar As Integer, ByVal bShow As Integer) As Integer
End Function

2. Declare the Wnd method

Protected Overrides Sub WndProc(ByRef m As Message)
    If mdiClient IsNot Nothing Then
        'Oculta as barras
        ShowScrollBar(mdiClient.Handle, SB_BOTH, 0)
    End If
    MyBase.WndProc(m)
End Sub

3. Declare this field

Private mdiClient As MdiClient = Nothing

4. Put this in the initialization method of your initializer class

For Each c As Control In Me.Controls
   'Procura os clientes MDI na sua janela

    If TypeOf c Is MdiClient Then
       mdiClient = CType(c, MdiClient)
    End If
Next