private void InitUserActivityHook() { // 安装键盘钩子 keyHook = new KeyboardHook(); // 钩住键按下 keyHook.KeyDown += new System.Windows.Forms.KeyEventHandler(hook_KeyDown); // 钩住键松开 keyHook.KeyUp += new System.Windows.Forms.KeyEventHandler(hook_KeyUp); keyHook.Start(); }