WPF 中使用Hook

public DocumentWindow()

      {

          InitializeComponent();

  this.SourceInitialized += new EventHandler(OnSourceInitialized);

      }

      void OnSourceInitialized(object sender, EventArgs e)

      {

          HwndSource source = (HwndSource)PresentationSource.FromVisual(this);

          source.AddHook(new HwndSourceHook(HandleMessages));

      }

      private IntPtr HandleMessages(IntPtr hwnd, int msg, IntPtr wParam, IntPtr lParam, ref bool handled)

      {

          //KeyboardHook  一个钩子类

          KeyboardHook hk = new KeyboardHook();

          hk.KeyDown += new System.Windows.Forms.KeyEventHandler(kh_KeyDown);

          return System.IntPtr.Zero;

      }

      void kh_KeyDown(object sender, System.Windows.Forms.KeyEventArgs e)

      {

          if (e.KeyCode == Keys.F5)

          {

              System.Windows.Forms.MessageBox.Show("f5");

              e.Handled = true;

              Microsoft.Office.Interop.PowerPoint._Presentation myPres =

                (Microsoft.Office.Interop.PowerPoint.Presentation)framer.ActiveDocument;

              myPres.SlideShowSettings.RangeType = PpSlideShowRangeType.ppShowSlideRange;

              var mm = myPres.SlideShowSettings;

              var app = myPres.Application;

              mm.Run();

          }

          else if (e.KeyCode == Keys.Escape)

          {

              //System.Windows.Forms.MessageBox.Show("退?出?");

              e.Handled = true;

              this.Close();

          }

          if (e.KeyCode == Keys.Right)

          {

             // e.Handled = true;

             // Microsoft.Office.Interop.PowerPoint._Presentation myPres =

             //  (Microsoft.Office.Interop.PowerPoint.Presentation)framer.ActiveDocument;

             // myPres.SlideShowSettings.RangeType = PpSlideShowRangeType.ppShowSlideRange;

             // var mm = myPres.SlideShowSettings;

             // mm.LoopUntilStopped=Microsoft.Office.Core.MsoTriState.msoTrue;

             ////myPres.SlideShowWindow.View.LastSlideViewed

             //// var app = myPres.Application;

             // mm.Run();

          }

          //if (e.KeyCode == Keys.F1 && !fInCall)

          //{

          //    e.Handled = true;

          //    fInCall = true;

          //    tmrDelayedCall = new Timer();

          //    tmrDelayedCall.Interval = 1;

          //    tmrDelayedCall.Tick += new

          //    EventHandler(tmrDelayedCall_Tick);

          //    tmrDelayedCall.Start();

          //}

      }

hook 类实现 IDisposable接口