Sample.ProgressBarForm.IMessageFilter C# (CSharp) Method

        bool IMessageFilter.PreFilterMessage(ref Message m)
        {
            if( m.Msg >= WM_MOUSEFIRST && m.Msg <= WM_MOUSELAST ) { 
                return true;
            }
            if( m.Msg >= WM_KEYFIRST && m.Msg <= WM_KEYLAST ) { 
                return true;
            }
            return false;
        }