如何在qt4(信号/槽)中监控QProcess finished()

It looks as if their was a solution for this in qt3, but I cannot find one for qt4 (all I have used, goggling I saw solutions for qt3).

看起来好像他们是qt3中的一个解决方案，但是我找不到qt4的解决方案(我所使用的，我看到了qt3的解决方案)。

connect(r, SIGNAL(readyReadStandardError()), this, SLOT(updateError()));
connect(r, SIGNAL(readyReadStandardOutput()), this, SLOT(updateText()));
connect(r, SIGNAL(finished(int exitcode)), this, SLOT(updateExit()));

I have my stdout/stderr SIGNAL/SLOT's working just fine, but I cannot seem to find a good solution for finished. I cannot do anything in a loop or proc->waitforfinished because I need constant updated to my UI. How can I do this?

我的stdout/stderr信号/插槽工作得很好，但是我似乎找不到一个好的解决方案。我不能在循环或proc->waitforfinished中执行任何操作，因为我需要不断更新我的UI。我该怎么做呢?

My error: Object::connect: No such signal QProcess::finished(int exitcode)

我的错误:对象::::connect:没有这样的信号QProcess:::finished(int exitcode)

Thanks

谢谢

Below are the SIGNALS for QProcess....

下面的信号QProcess ....

Signals
void    error ( QProcess::ProcessError error )
void    finished ( int exitCode, QProcess::ExitStatus exitStatus )
void    readyReadStandardError ()
void    readyReadStandardOutput ()
void    started ()
void    stateChanged ( QProcess::ProcessState newState )

2 个解决方案

#1

replace your code line

取代你的代码行

connect(r, SIGNAL(finished(int exitcode)), this, SLOT(updateExit()));

with

与

connect(r, SIGNAL(finished(int)), this, SLOT(updateExit()));

When connection signals and slots dont give a parameter name.

当连接信号和插槽没有给出参数名称时。

#2

I feel like I'm missing something here, but I have a few minutes... :)

我觉得我错过了一些东西，但我有几分钟……:)

What's wrong with the finished signal in 4.x? It just adds a few parameters to what you have from what I can tell.

4.x中完成的信号有什么问题?它只是添加了一些参数，根据我所知道的。

4.5:

void QProcess::finished( int exitCode, QProcess::ExitStatus exitStatus )

4.0:

void QProcess::finished( int exitCode )

Change your slot to have the correct arguments and just ignore them if you don't need them.

更改您的位置以获得正确的参数，如果不需要，则忽略它们。

As for needing status updates, launch the new QProcess in a separate thread and let that thread do the waiting.

至于需要状态更新，请在单独的线程中启动新的QProcess，并让该线程进行等待。

#1