在WPF上实现系统消息获

本文仅为博主备忘用

        void WSInitialed(object sender, EventArgs e)
        {
            WindowInteropHelper helper = new WindowInteropHelper(this);
            IntPtr handle = helper.Handle;
            HwndSource hs = HwndSource.FromHwnd(handle);
            hs.AddHook(new HwndSourceHook(WndProc));
        }

        protected IntPtr WndProc(IntPtr hwnd, int msg, IntPtr wParam, IntPtr lParam, ref bool handled)
        {
        }