Send window to the back

Hi everyone

I have a main form which loads a crystal reports preview form.

I want to be able to set the main form to fall behind the reports preview form after it is loaded.

Can anybody help

Thanks

Code:

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'How to set a form as bottom of the order and keep it there
'using subClassing
'
'I didn't write this it was handed over to me..I tried it out
'and it does seem to do the trick..however you must end it by
'using dblClick on form..if you use the stop key in VB it will
'crash....so it must be unloaded via code

'bas module code

Public Declare Function SetWindowLong Lib "user32" _
                Alias "SetWindowLongA" (ByVal hwnd As Long, _
                ByVal nIndex As Long, ByVal dwNewLong As Long) As Long
Public Declare Function CallWindowProc Lib "user32" _
                Alias "CallWindowProcA" (ByVal lpPrevWndFunc As Long, _
                ByVal hwnd As Long, ByVal Msg As Long, _
                ByVal wParam As Long, ByVal lParam As Long) As Long
Public Declare Function SetWindowPos Lib "user32" (ByVal hwnd As Long, _
                ByVal hWndInsertAfter As Long, ByVal x As Long, _
                ByVal y As Long, ByVal cx As Long, ByVal cy As Long, _
                ByVal wFlags As Long) As Long

Public Const GWL_WNDPROC = (-4)
Public Const WM_PAINT = &HF
Public Const WM_ACTIVATE = &H6
Public Const SWP_NOMOVE = &H2
Public Const SWP_NOSIZE = &H1
Public Const HWND_BOTTOM = 1

Public winProc As Long


Public Function WindowProc(ByVal hwnd As Long, ByVal wMsg As Long, ByVal wParam As Long, ByVal lParam As Long) As Long
    Dim lFlags As Long
    lFlags = SWP_NOSIZE Or SWP_NOMOVE
   
    Select Case wMsg
        Case WM_ACTIVATE
            SetWindowPos hwnd, HWND_BOTTOM, 0, 0, 0, 0, lFlags
        Case Else
            WindowProc = CallWindowProc(winProc, hwnd, wMsg, wParam, lParam)
            Exit Function
    End Select
End Function

Public Sub SubClass(hwnd As Long)
    On Error Resume Next
    winProc = SetWindowLong(hwnd, GWL_WNDPROC, AddressOf WindowProc)
End Sub


Public Sub UnSubClass(hwnd As Long)
    If winProc Then
        SetWindowLong hwnd, GWL_WNDPROC, winProc
        winProc = 0
    End If
End Sub



'Form Event Code

Private Sub Form_Activate()

    Me.ClipControls = False
    Me.BorderStyle = 0
    Me.Caption = ""
    Me.Refresh
   
End Sub

Private Sub Form_DblClick()
  UnSubClass Me.hwnd
  Unload Me
End Sub

Private Sub Form_Load()
   
    SubClass Me.hwnd

End Sub

Private Sub Form_Unload(Cancel As Integer)
   
    UnSubClass Me.hwnd
   
End Sub

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Thanks HeSaidJoe

I'll try that