Qt 设置某窗口置顶

bool setFocus()

{

    HWND top = GetDesktopWindow();

    DWORD PID;

    HWND pHwnd = NULL;

    while(1) {

        pHwnd = FindWindowEx(top, pHwnd, L"Qt5QWindowIcon", NULL);

        if(!pHwnd) {

            DEBUG() << "窗口遍历完毕!";

            break;

        }

        GetWindowThreadProcessId(pHwnd, &PID);

        //获取*.exe进程信息

        QString cmd="tasklist";

        QStringList args;

        args<<"/FI"<<"IMAGENAME eq GsdAtFrame.exe";

        args<<"/FO"<<"CSV";     //CSV格式显示

        args<<"/NH";        //不显示标题栏

        QProcess *process = new QProcess;

        process->start(cmd,args);

        process->waitForStarted();

        process->waitForFinished();

        QString data = process->readAll();

        process->close();

        //获取进程PID

        QStringList temp = data.split(",");

        uint pid = temp[1].remove("\"").toInt();   //移除："，得到：PID

        if(PID == pid) {

            AttachThreadInput(GetWindowThreadProcessId(::GetForegroundWindow(),NULL), GetCurrentThreadId(),TRUE);

            SetForegroundWindow(pHwnd);

            SetFocus(pHwnd);

            AttachThreadInput(GetWindowThreadProcessId(::GetForegroundWindow(),NULL), GetCurrentThreadId(),FALSE);

            DEBUG() << "设置窗口焦点成功";

            return true;

        }

    }

    DEBUG() << "设置窗口焦点失败";

    return false;

}