模拟鼠标发送点击

Question

本帖最后由 u010233208 于 2013-04-16 11:32:17 编辑

Answer 1

    [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;
这个中间不用延时，因为SendMessage是等待消息返回再执行下一个，而PostMessage不等待消息返回就执行下一个