using System;

using System.Collections.Generic;

using System.ComponentModel;

using System.Data;

using System.Drawing;

using System.Linq;

using System.Text;

using System.Windows.Forms;

using System.Runtime.InteropServices;



namespace WindowsFormsApplication3

{

    public partial class Form1 : Form

    {

        public Form1()

        {

            InitializeComponent();

        }



        [DllImport("user32.dll", EntryPoint = "SendMessage")]

        static extern bool PostMessage(IntPtr hwnd, uint msg, IntPtr wParam, IntPtr lParam); 

        [DllImport("User32.dll", EntryPoint = "FindWindow")]

        private static extern IntPtr FindWindow(string lpClassName, string lpWindowName);

        [DllImport("User32.dll", EntryPoint = "FindWindowEx")]

        private static extern IntPtr FindWindowEx(IntPtr hwndParent, IntPtr hwndChildAfter, string lpClassName, string lpWindowName);



        public static uint WM_LBUTTONDOWN = 0x201; 

        //按下鼠标左键

        public static uint WM_LBUTTONUP = 0x202;

        //释放鼠标左键



        private void Form1_Load(object sender, EventArgs e)

        {

           

        }



        public static IntPtr gethWnd() 

        {

            String s = "EVE - xxxxx";

            IntPtr hWnd =  FindWindow("triuiScreen", s);

            if (hWnd == IntPtr.Zero)

	        {

                MessageBox.Show("error");

		        return IntPtr.Zero;

	        }else

            {

                return hWnd;

            }

        }



        IntPtr hWnds = gethWnd();



     &