求模拟鼠标单击的WinAPI

Question

Form1中有一个textBox1控件
请问如何用API模拟单击到textBox1文本中
最好贴上代码看一下

Answer 1

我就是想问下模拟鼠标单击的API

Answer 2

 [DllImport("User32.dll", EntryPoint = "SendMessage")]
        private static extern int SendMessage(
        IntPtr hWnd,
        int Msg,
        int wParam,
        int lParam
        );
        private void button1_Click(object sender, EventArgs e)
        {            SendMessage((IntPtr)comboBox2.Handle, 0x0201, 0, 0);
            SendMessage((IntPtr)comboBox2.Handle, 0x0202, 0, 0);        }其中API参数的含义为：        //按下鼠标左键
        public static int WM_LBUTTONDOWN = 0x0201;
        //释放鼠标左键
        public static int WM_LBUTTONUP = 0x0202;

Answer 3

        [DllImport("sser32.dll")]
        static extern int SendMessage(IntPtr hWnd,int Msg,int wParam,int lParam);        //按下鼠标左键
        public static int WM_LBUTTONDOWN = 0x0201;
        //释放鼠标左键
        public static int WM_LBUTTONUP = 0x0202;        private void button1_Click(object sender, EventArgs e)
        {
            SendMessage((IntPtr)comboBox2.Handle, 0x0201, 0, 0);
            SendMessage((IntPtr)comboBox2.Handle, 0x0202, 0, 0);
        }