C#获取其他程序ListView控件中的内容

【实例截图】

【核心代码】

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;
using System.Runtime.InteropServices;
namespace 读取其他软件listview控件的内容
{
    public partial class Form1 : Form
    {
        int hwnd;   //窗口句柄
        int process;//进程句柄
        int pointer;
        private const uint LVM_FIRST = 0x1000;
        private const uint LVM_GETHEADER = LVM_FIRST   31;
        private const uint LVM_GETITEMCOUNT = LVM_FIRST   4;//获取列表行数
        private const uint LVM_GETITEMTEXT = LVM_FIRST   45;//获取列表内的内容
        private const uint LVM_GETITEMW = LVM_FIRST   75;

        private const uint HDM_GETITEMCOUNT = 0x1200;//获取列表列数

        private const uint PROCESS_VM_OPERATION = 0x0008;//允许函数VirtualProtectEx使用此句柄修改进程的虚拟内存
        private const uint PROCESS_VM_READ = 0x0010;//允许函数访问权限
        private const uint PROCESS_VM_WRITE = 0x0020;//允许函数写入权限

        private const uint MEM_COMMIT = 0x1000;//为特定的页面区域分配内存中或磁盘的页面文件中的物理存储
        private const uint MEM_RELEASE = 0x8000;
        private const uint MEM_RESERVE = 0x2000;//保留进程的虚拟地址空间,而不分配任何物理存储

        private const uint PAGE_READWRITE = 4;

        private int LVIF_TEXT = 0x0001;

        [DllImport("user32.dll")]//查找窗口
        private static extern int FindWindow(
                                            string strClassName,    //窗口类名
                                            string strWindowName    //窗口标题
        );

        [DllImport("user32.dll")]//在窗口列表中寻找与指定条件相符的第一个子窗口
        private static extern int FindWindowEx(
                                              int hwndParent, // handle to parent window
                                            int hwndChildAfter, // handle to child window
                                              string className, //窗口类名            
                                              string windowName // 窗口标题
        );
        [DllImport("user32.DLL")]
        private static extern int SendMessage(int hWnd, uint Msg, int wParam, int lParam);
        [DllImport("user32.dll")]//找出某个窗口的创建者(线程或进程),返回创建者的标志符
        private static extern int GetWindowThreadProcessId(int hwnd, out int processId);
        [DllImport("kernel32.dll")]//打开一个已存在的进程对象,并返回进程的句柄
        private static extern int OpenProcess(uint dwDesiredAccess, bool bInheritHandle, int processId);
        [DllImport("kernel32.dll")]//为指定的进程分配内存地址:成功则返回分配内存的首地址
        private static extern int VirtualAllocEx(int hProcess, IntPtr lpAddress, uint dwSize, uint flAllocationType, uint flProtect);
        [DllImport("kernel32.dll")]//从指定内存中读取字节集数据
        private static extern bool ReadProcessMemory(
                                            int hProcess, //被读取者的进程句柄
                                            int lpBaseAddress,//开始读取的内存地址
                                            IntPtr lpBuffer, //数据存储变量
                                            int nSize, //要写入多少字节
                                            ref uint vNumberOfBytesRead//读取长度
        );
        [DllImport("kernel32.dll")]//将数据写入内存中
        private static extern bool WriteProcessMemory(
                                            int hProcess,//由OpenProcess返回的进程句柄
                                            int lpBaseAddress, //要写的内存首地址,再写入之前,此函数将先检查目标地址是否可用,并能容纳待写入的数据
                                            IntPtr lpBuffer, //指向要写的数据的指针
                                            int nSize, //要写入的字节数
                                            ref uint vNumberOfBytesRead
        );
        [DllImport("kernel32.dll")]
        private static extern bool CloseHandle(int handle);
        [DllImport("kernel32.dll")]//在其它进程中释放申请的虚拟内存空间
        private static extern bool VirtualFreeEx(
                                    int hProcess,//目标进程的句柄,该句柄必须拥有PROCESS_VM_OPERATION的权限
                                    int lpAddress,//指向要释放的虚拟内存空间首地址的指针
                                    uint dwSize,
                                    uint dwFreeType//释放类型
        );
        /// <summary>
        /// LVITEM结构体,是列表视图控件的一个重要的数据结构
        /// 占空间：4(int)x7=28个byte
        /// </summary>
        private struct LVITEM  //结构体
        {
            public int mask;//说明此结构中哪些成员是有效的
            public int iItem;//项目的索引值(可以视为行号)从0开始
            public int iSubItem; //子项的索引值(可以视为列号)从0开始
            public int state;//子项的状态
            public int stateMask; //状态有效的屏蔽位
            public IntPtr pszText;  //主项或子项的名称
            public int cchTextMax;//pszText所指向的缓冲区大小
        }

        public Form1()
        {
            InitializeComponent();
        }

        /// <summary>  
        /// LV列表总行数
        /// </summary>
        private int ListView_GetItemRows(int handle)
        {
            return SendMessage(handle, LVM_GETITEMCOUNT, 0, 0);
        }
        /// <summary>  
        /// LV列表总列数
        /// </summary>
        private int ListView_GetItemCols(int handle)
        {
            return SendMessage(handle, HDM_GETITEMCOUNT, 0, 0);
        }

        private void button1_Click(object sender, EventArgs e)
        {
            int headerhwnd; //listview控件的列头句柄
            int rows, cols;  //listview控件中的行列数
            int processId; //进程pid  

            hwnd = FindWindow("#32770", "Windows 任务管理器");
            hwnd = FindWindowEx(hwnd, 0, "#32770", null);
            hwnd = FindWindowEx(hwnd, 0, "SysListView32", null);//进程界面窗口的句柄,通过SPY获取
            headerhwnd = SendMessage(hwnd, LVM_GETHEADER, 0, 0);//listview的列头句柄

            rows = ListView_GetItemRows(hwnd);//总行数，即进程的数量
            cols = ListView_GetItemCols(headerhwnd);//列表列数
            GetWindowThreadProcessId(hwnd, out processId);

            //打开并插入进程
            process = OpenProcess(PROCESS_VM_OPERATION | PROCESS_VM_READ | PROCESS_VM_WRITE, false, processId);
            //申请代码的内存区,返回申请到的虚拟内存首地址
            pointer = VirtualAllocEx(process, IntPtr.Zero, 4096, MEM_RESERVE | MEM_COMMIT, PAGE_READWRITE);
            string[,] tempStr;//二维数组
            string[] temp = new string[cols];

            tempStr = GetListViewItmeValue(rows, cols);//将要读取的其他程序中的ListView控件中的文本内容保存到二维数组中

            listView1.Items.Clear();//清空LV控件信息
            //输出数组中保存的其他程序的LV控件信息
            for (int i = 0; i < rows; i  )
            {
                for (int j = 0; j < cols; j  )
                {
                    temp[j] = tempStr[i, j];
                }
                ListViewItem lvi = new ListViewItem(temp);
                listView1.Items.Add(lvi);
            }
        }

        /// <summary>
        /// 从内存中读取指定的LV控件的文本内容
        /// </summary>
        /// <param name="rows">要读取的LV控件的行数</param>
        /// <param name="cols">要读取的LV控件的列数</param>
        /// <returns>取得的LV控件信息</returns>
        private string[,] GetListViewItmeValue(int rows, int cols)
        {
            string[,] tempStr = new string[rows, cols];//二维数组:保存LV控件的文本信息
            for (int i = 0; i < rows; i  )
            {
                for (int j = 0; j < cols; j  )
                {
                    byte[] vBuffer = new byte[256];//定义一个临时缓冲区
                    LVITEM[] vItem = new LVITEM[1];
                    vItem[0].mask = LVIF_TEXT;//说明pszText是有效的
                    vItem[0].iItem = i;     //行号
                    vItem[0].iSubItem = j;  //列号
                    vItem[0].cchTextMax = vBuffer.Length;//所能存储的最大的文本为256字节
                    vItem[0].pszText = (IntPtr)((int)pointer   Marshal.SizeOf(typeof(LVITEM)));
                    uint vNumberOfBytesRead = 0;

                    //把数据写到vItem中
                    //pointer为申请到的内存的首地址
                    //UnsafeAddrOfPinnedArrayElement:获取指定数组中指定索引处的元素的地址
                    WriteProcessMemory(process, pointer, Marshal.UnsafeAddrOfPinnedArrayElement(vItem, 0), Marshal.SizeOf(typeof(LVITEM)), ref vNumberOfBytesRead);

                    //发送LVM_GETITEMW消息给hwnd,将返回的结果写入pointer指向的内存空间
                    SendMessage(hwnd, LVM_GETITEMW, i, pointer);

                    //从pointer指向的内存地址开始读取数据,写入缓冲区vBuffer中
                    ReadProcessMemory(process, ((int)pointer   Marshal.SizeOf(typeof(LVITEM))), Marshal.UnsafeAddrOfPinnedArrayElement(vBuffer, 0), vBuffer.Length, ref vNumberOfBytesRead);

                    string vText = Encoding.Unicode.GetString(vBuffer, 0, (int)vNumberOfBytesRead); ;
                    tempStr[i, j] = vText;
                }
            }
            VirtualFreeEx(process, pointer, 0, MEM_RELEASE);//在其它进程中释放申请的虚拟内存空间,MEM_RELEASE方式很彻底,完全回收
            CloseHandle(process);//关闭打开的进程对象
            return tempStr;
        }

 
    }
}