Qt獲取所有進程、終止某個進程

Qt獲取所有進程、終止某個進程

代碼中用到Qt庫的地方， 不使用Qt庫的可以替換為自己相應的函數

方法一：

    //Qt開源庫， 通過QProcess啟動系統命令“tasklist.exe”, 獲取正在運行的進程
    QProcess process;
    process.start("tasklist.exe");
    if(process.waitForFinished())
    {
        QByteArray result = process.readAll();
    ｝

方法二：

    //如果系統找不到Psapi.h
    //需要安裝microsoft sdk, https://www.microsoft.com/en-us/download/details.aspx?id=8279
    #include <Psapi.h>

    unsigned long aProcesses[1024], cbNeeded, cProcesses;
    //枚舉所有進程ID
    if( !EnumProcesses(aProcesses,sizeof(aProcesses),&cbNeeded) )
    {
        qDebug()<<"text01"; //Qt開源庫，輸出字符串
    }
    QStringList lprocess;   //Qt開源庫，字符串列表

    //計算有多少個進程
    cProcesses = cbNeeded / sizeof(unsigned long);

    for(unsigned int i = 0; i < cProcesses; i++)
    {
        if(aProcesses[i] == 0)
        {
            continue;
        }
        //獲取已存在的進程對象句柄
        HANDLE hProcess = OpenProcess(PROCESS_QUERY_INFORMATION | PROCESS_VM_READ, 0, aProcesses[i]);
        wchar_t buffer[50];
        GetModuleBaseName(hProcess, 0, buffer, 50); //獲取進程名
        CloseHandle(hProcess);
        lprocess << QString::fromWCharArray(buffer); //Qt開源庫
    }
    qDebug()<<lprocess; //Qt開源庫

終止進程：

    int KillProcess(LPCSTR processName)
    {
        PROCESSENTRY32 pe;
        DWORD id=0;
        HANDLE hSnapshot = CreateToolhelp32Snapshot(TH32CS_SNAPPROCESS,0);
        pe.dwSize = sizeof(PROCESSENTRY32);
        if(!Process32First(hSnapshot,&pe))
        {
            return 0;
        }

        while(1)
        {
            pe.dwSize=sizeof(PROCESSENTRY32);
            if(Process32Next(hSnapshot,&pe)==FALSE)
            {
                break;
            }
            //find processName
            if(wcsicmp(pe.szExeFile, processName)==0)
            {
                id = pe.th32ProcessID;
                break;
            }
        }
        CloseHandle(hSnapshot);
        //if(id == 0)
        // return ;

        //Kill The Process
        HANDLE hProcess = OpenProcess( PROCESS_ALL_ACCESS, FALSE, id );
        if (hProcess != NULL)
        {
            TerminateProcess(hProcess,0);
            CloseHandle(hProcess);
        }
        return 1;
    }