//---------------------------------------------------------------------------

// 读取ListView中的Item

// hWindow为目标ListView的句柄

// strlist用来存放ListView的Item字符串

// 来自http://www.ccrun.com

// by ccrun(老妖)

//---------------------------------------------------------------------------

void MyGetListViewItem(HWND hWindow,TStrings *strlist)

{

    const nMaxLen=1023;

    char szBuf[nMaxLen+1];

    char buf[nMaxLen+1];



    int          nLVItemCount;

    int          nColumns;

    DWORD        dwProcessID;

    HANDLE       hProcess;

    HANDLE       hHeaderCtrl;

    LVITEM       lvItemLocal;

    HDITEM       hdItemLocal;

    DWORD        dwBytesRead, dwBytesWrite;

    bool         bSuccess,bWriteOK;



    //注意：本文来自www.ccrun.com，by ccrun(老妖)，转载请注明出处。

    //本文转自 C++Builder研究 - http://www.ccrun.com/article.asp?i=583&d=eahk4z

    //为防止某些不负责任的转载者，故出此下策，在代码中加入声明，请大家原谅。



    GetWindowThreadProcessId(hWindow,&dwProcessID);

    hProcess=OpenProcess(PROCESS_ALL_ACCESS,FALSE,dwProcessID);

    if(!hProcess)  //得不到指定进程的句柄

        return;

    //在指定进程内分配存储空间

    LPVOID lpTextRemote=VirtualAllocEx(hProcess,NULL,nMaxLen+1,MEM_COMMIT,PAGE_READWRITE);

    LPVOID lpListItemRemote=VirtualAllocEx(hProcess,NULL,sizeof(LVITEM),MEM_COMMIT,PAGE_READWRITE);

    LPVOID lpHeadItemRemote=VirtualAllocEx(hProcess,NULL,sizeof(HDITEM),MEM_COMMIT,PAGE_READWRITE);

    if((!lpTextRemote) || (!lpListItemRemote) || (!lpHeadItemRemote)) //不能在指定进程内分配存储空间

        return;



    nLVItemCount=ListView_GetItemCount(hWindow);

    hHeaderCtrl=ListView_GetHeader(hWindow);

    nColumns=Header_GetItemCount(hHeaderCtrl);

    if (nColumns<=0) {

        nColumns=1;

    } else {

        buf[0]=0;

        for (int j=0;j<nColumns;j++) {

            ZeroMemory(szBuf,nMaxLen+1);

            bWriteOK= WriteProcessMemory(hProcess,lpTextRemote,(LPVOID)szBuf,nMaxLen+1,(LPDWORD)&dwBytesWrite);

            if(!bWriteOK) //写内存错误

                return;

            hdItemLocal.mask=HDI_TEXT;

            hdItemLocal.cchTextMax=nMaxLen;

            hdItemLocal.pszText=(LPTSTR)lpTextRemote;

            dwBytesWrite=0;

            bWriteOK=WriteProcessMemory(hProcess,lpHeadItemRemote,(LPVOID)&hdItemLocal,sizeof(HDITEM),(LPDWORD)&dwBytesWrite);

            if(!bWriteOK) //写内存错误

                return;



            SendMessage(hHeaderCtrl,HDM_GETITEM,(WPARAM)j,(LPARAM)lpHeadItemRemote);

            bSuccess=ReadProcessMemory(hProcess,lpTextRemote,szBuf,nMaxLen+1,&dwBytesRead);

            //从指定进程存储空间读取文本

            if(!bSuccess) //不能在指定进程内读取文本

                return;

            if (j>0) strcat(buf,"|");

            strcat(buf,AnsiString(szBuf).c_str());

        }

        strlist->Add(buf);

    }

//  strlist->Add("ListView的Columns数: " + String(nColumns));

//  strlist->Add("---------------------------");



    for (int i=0;i<nLVItemCount;i++) {

        buf[0]=0;

        for (int j=0;j<nColumns;j++) {

            ZeroMemory(szBuf,nMaxLen+1);

            bWriteOK= WriteProcessMemory(hProcess,lpTextRemote,(LPVOID)szBuf,nMaxLen+1,(LPDWORD)&dwBytesWrite);

            if(!bWriteOK) //写内存错误

                return;

            lvItemLocal.iItem=i;

            lvItemLocal.iSubItem=j;

            lvItemLocal.mask=LVIF_TEXT;

            lvItemLocal.cchTextMax=nMaxLen;

            lvItemLocal.pszText=(LPTSTR)lpTextRemote;

            dwBytesWrite=0;

            bWriteOK=WriteProcessMemory(hProcess,lpListItemRemote,(LPVOID)&lvItemLocal,sizeof(LVITEM),(LPDWORD)&dwBytesWrite);

            if(!bWriteOK) //写内存错误

                return;

            SendMessage(hWindow,LVM_GETITEMTEXT,(WPARAM)i,(LPARAM)lpListItemRemote);

            bSuccess=ReadProcessMemory(hProcess,lpTextRemote,szBuf,nMaxLen+1,&dwBytesRead);

            //从指定进程存储空间读取文本

            if(!bSuccess) //不能在指定进程内读取文本

                return;

            if (j>0) strcat(buf,"|");

            strcat(buf,AnsiString(szBuf).c_str());

        }

        strlist->Add(buf);

    }//end of for(i)

    //在指定进程内释放存储空间

    VirtualFreeEx(hProcess,lpListItemRemote,0,MEM_RELEASE);

    VirtualFreeEx(hProcess,lpTextRemote,0,MEM_RELEASE);

    //关闭指定进程句柄

    CloseHandle(hProcess);

}