How to get your process name in qt?

Question

How to get your (this, this application currently running) process name in qt?

Define "process name". Do you mean the file name of the executable? — Frank Osterfeld, May 09 '12 at 15:55

score 7 · Answer 1 · answered May 09 '12 at 14:41

7

I think you're looking for QCoreApplication::applicationPid().

answered May 09 '12 at 14:41

suszterpatt

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PID is not the name. Process ID and Process Name are different attributes. – karlphillip May 09 '12 at 14:47

mtvec · Answer 2 · 2012-05-09T15:58:54.217

5

If you want to get the name of the executable (that is, the string normally kept in argv[0]), you might get that by reading the first element of QCoreApplication::arguments().

On Unix, this only works if you initialized your Q(Core)Application correctly:

int main(int argc, char* argv[])
{
    QApplication app(argc, argv);
    //...
    return app.exec();
}

Edit: Actually, it might be better to call QCoreApplication::applicationFilePath() to get the full path of the executable. Given its full path, you can easily get the name of the executable using QFileInfo::fileName().

edited May 09 '12 at 15:58

answered May 09 '12 at 15:12

mtvec

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Or QFileInfo( QCoreApplication::applicationFilePath() ).fileName() for the filename of the executable. – Frank Osterfeld May 09 '12 at 15:54
@Frank: Thanks, I added that to my answer. – mtvec May 09 '12 at 15:59
This approach might work for applications that you wrote. But keep in mind that [a process can change it's name during runtime](https://www.planet-source-code.com/vb/scripts/ShowCode.asp?txtCodeId=66443&lngWId=1), even though it is not recommended. So relying on the executable name might not be the best idea. It's best to trust the native API for the job. – karlphillip May 09 '12 at 16:40

score 3 · Answer 3 · edited May 23 '17 at 12:23

3

Unfortunately there's no such thing in Qt.

You'll have to use the native API of the platform you are working with to retrieve this information.

Windows: Check GetCurrentProcessId() and How to get Process Name in C++

Linux: How to get current process name in linux?

edited May 23 '17 at 12:23

Community

1
1

answered May 09 '12 at 14:50

karlphillip

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score 0 · Answer 4 · answered Jun 12 '19 at 21:52

0

Use the arg first part

   QStringList args = QCoreApplication::instance()->arguments();
    args.takeFirst();

answered Jun 12 '19 at 21:52

Sherif O.

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How to get your process name in qt?

4 Answers4