' Process messages.
Public Function NewWindowProc(ByVal hwnd As Long, ByVal msg _
    As Long, ByVal wParam As Long, lParam As WINDOWPOS) As _
    Long
Const WM_NCDESTROY = &H82
Const WM_WINDOWPOSCHANGING = &H46
Const WM_EXITSIZEMOVE = &H232

    ' If we're being destroyed,
    ' restore the original WindowProc.
    If msg = WM_NCDESTROY Then
        SetWindowLong _
            hwnd, GWL_WNDPROC, _
            OldWindowProc
    End If

    ' See if we are moving or done moving.
    If msg = WM_WINDOWPOSCHANGING Then Form1.Moving
    If msg = WM_EXITSIZEMOVE Then Form1.Moved

    ' Continue normal processing. VERY IMPORTANT!
    NewWindowProc = CallWindowProc( _
        OldWindowProc, hwnd, msg, wParam, _
        lParam)
End Function