Inheritance: System.ComponentModel.HandledEventArgs
Exemple #1
0
        private void OnKeyPressed(object sender, GlobalKeyboardHookEventArgs e)
        {
            //Debug.WriteLine(e.KeyboardData.VirtualCode);

            //if (e.KeyboardData.VirtualCode != GlobalKeyboardHook.VkSnapshot)
            //    return;

            // seems, not needed in the life.
            //if (e.KeyboardState == GlobalKeyboardHook.KeyboardState.SysKeyDown &&
            //    e.KeyboardData.Flags == GlobalKeyboardHook.LlkhfAltdown)
            //{
            //    MessageBox.Show("Alt + Print Screen");
            //    e.Handled = true;
            //}
            //else

            //TODO:加入选项是否完全拦截
            if (e.KeyboardState == GlobalKeyboardHook.KeyboardState.KeyDown && e.KeyboardData.VirtualCode == (int)Keys.Left)
            {
                button1_Click(null, null);
                e.Handled = true;
            }
            else if (e.KeyboardState == GlobalKeyboardHook.KeyboardState.KeyDown && e.KeyboardData.VirtualCode == (int)Keys.Right)
            {
                button2_Click(null, null);
                e.Handled = true;
            }
        }
        public IntPtr LowLevelKeyboardProc(int nCode, IntPtr wParam, IntPtr lParam)
        {
            bool fEatKeyStroke = false;

            var wparamTyped = wParam.ToInt32();
            if (Enum.IsDefined(typeof(KeyboardState), wparamTyped))
            {
                object o = Marshal.PtrToStructure(lParam, typeof(LowLevelKeyboardInputEvent));
                LowLevelKeyboardInputEvent p = (LowLevelKeyboardInputEvent)o;

                var eventArguments = new GlobalKeyboardHookEventArgs(p, (KeyboardState)wparamTyped);

                EventHandler<GlobalKeyboardHookEventArgs> handler = KeyboardPressed;
                handler?.Invoke(this, eventArguments);

                fEatKeyStroke = eventArguments.Handled;
            }

            return fEatKeyStroke ? (IntPtr)1 : CallNextHookEx(IntPtr.Zero, nCode, wParam, lParam);
        }