VB.NET窗口最小化

    Protected Overrides Sub WndProc(ByRef m As System.Windows.Forms.Message)        Const WM_SYSCOMMAND As Integer = &H112        Const SC_CLOSE As Integer = &HF060        Const SC_MINIMIZE As Integer = &HF020        If m.Msg = WM_SYSCOMMAND And (m.WParam = SC_MINIMIZE Or m.WParam = SC_CLOSE) Then            Me.Hide()            Exit Sub        End If        MyBase.WndProc(m)    End Sub

不加这个最小化后左下角仍会有个小窗口,并且有时还不能还原