C#实现的三种方式实现模拟键盘按键

发布时间：2020-12-15 17:53:27 所属栏目：百科来源：网络整理

导读：今天PHP站长网 52php.cn把收集自互联网的代码分享给大家，仅供参考。 private void button1_Click(object sender,EventArgs e) { textBox1.Focus(); SendKeys.Send("{A}"); } 模拟组合键：CTRL + A private void button1_

以下代码由PHP站长网 52php.cn收集自互联网

现在PHP站长网小编把它分享给大家，仅供参考

        private void button1_Click(object sender,EventArgs e)
        {
            textBox1.Focus();
            SendKeys.Send("{A}");
        }

模拟组合键：CTRL + A

        private void button1_Click(object sender,EventArgs e)
        {
            webBrowser1.Focus();
            SendKeys.Send("^{A}");
        }

SendKeys.Send // 异步模拟按键(不阻塞UI)

        [DllImport("user32.dll",EntryPoint = "keybd_event",SetLastError = true)]
        public static extern void keybd_event(Keys bVk,byte bScan,uint dwFlags,uint dwExtraInfo);

        private void button1_Click(object sender,EventArgs e)
        {
            textBox1.Focus();
            keybd_event(Keys.A,0);
        }

模拟组合键：CTRL + A

        public const int KEYEVENTF_KEYUP = 2;

        private void button1_Click(object sender,EventArgs e)
        {
            webBrowser1.Focus();
            keybd_event(Keys.ControlKey,0);
            keybd_event(Keys.A,0);
            keybd_event(Keys.ControlKey,KEYEVENTF_KEYUP,0);
        }

上面两种方式都是全局范围呢，现在介绍如何对单个窗口进行模拟按键

        [DllImport("user32.dll",EntryPoint = "PostMessageA",SetLastError = true)]
        public static extern int PostMessage(IntPtr hWnd,int Msg,Keys wParam,int lParam);

        public const int WM_CHAR = 256;

        private void button1_Click(object sender,EventArgs e)
        {
            textBox1.Focus();
            PostMessage(textBox1.Handle,256,Keys.A,2);
        }

        public const int WM_KEYDOWN = 256;
        public const int WM_KEYUP = 257;

        private void button1_Click(object sender,0); 
            PostMessage(webBrowser1.Handle,WM_KEYDOWN,0);
        }

转自：http://blog.csdn.net/u012395622/article/details/46414213

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