根据进程名来结束程序

 bool Widget::Kill(const QString &name)

{

    HANDLE hSnapShot = ::CreateToolhelp32Snapshot(TH32CS_SNAPPROCESS,0);

    if(hSnapShot == 0)

    {

            return false;

    }

    PROCESSENTRY32 thePE;

    thePE.dwSize = sizeof(PROCESSENTRY32);

    //遍历正在运行的第一个系统进程

    BOOL Status = Process32First(hSnapShot,&thePE);

    BOOL bHaveFlag = FALSE;

    DWORD ProcessID = 0;

    while(Status)

    {

            //遍历正在运行的下一个系统进程

            Status = Process32Next(hSnapShot,&thePE);

            //找到相应的进程 *.exe

            if(0 == _tcscmp(QString::fromWCharArray(thePE.szExeFile).toAscii(),name.toAscii()))

            {

                    bHaveFlag = TRUE;

                    ProcessID = thePE.th32ProcessID;

                    //结束指定的进程 ProcessID

                    if(!TerminateProcess(OpenProcess (PROCESS_TERMINATE||PROCESS_QUERY_INFORMATION,false,ProcessID),0))

                    {

                            //MessageBox(NULL, "无法终止指定的进程！", NULL, MB_ICONWARNING||MB_OK);

                    }

                    break;

            }

    }

    CloseHandle(hSnapShot);

}