QT 启动与关闭外部程序

QString filepath = QDir::currentPath()

    QString fullpath = filepath+"\\pp\\dist\\start"

    QString title = fullpath+"\\main.exe"

    title = title.replace("/","\\")

    fullpath = fullpath.replace("/","\\")

    QProcess p(this)

    p.setWorkingDirectory(fullpath)

    p.start("cmd", QStringList()<<"/c"<<"start main.exe")

    p.waitForStarted()

    p.waitForFinished()

关闭

    QProcess p(this)

    p.setWorkingDirectory(fullpath)

    p.start("cmd", QStringList()<<"/c"<<"taskkill /f /t /im main.exe")

    p.waitForStarted()

    p.waitForFinished()

下面的代码在VS2008中测试通过

private Process p

private void button1_Click(object sender, EventArgs e)

{

if (p == null || p.HasExited)

{

//ProcessStartInfo psInfo = new ProcessStartInfo("notepad.exe")

//psInfo.WindowStyle = ProcessWindowStyle.Hidden

//隐藏

//p = Process.Start(psInfo)

p = Process.Start("notepad.exe")

}

}

private void button2_Click(object sender, EventArgs e)

{

if (p != null &&!p.HasExited)

{

p.Kill()

//如果启动的程序有显示界面，并且该进程不是隐藏启动的，也可以用下面的语句关闭该进程

//p.CloseMainWindow()

}

}

QString KillStr = "taskkill /f /im main.exe"

QProcess *Process = new QProcess(this)

Process->start(KillStr)