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QProcess: Extend the setStandardOutputFile doc

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It seems to be a hidden gem that one can stop redirecting the standard
output to a file without creating a new QProcess instance.

I have discovered this while browsing the private implementation of
QProcess trying to answer this question:

https://stackoverflow.com/a/72989131/2682142

I believe that this should be documented unless it is not meant to be
guaranteed behavior.

Change-Id: I180764d4cc56f6395d6d65942077e3ede63c71ea
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
This commit is contained in:
Laszlo Papp 2022-07-23 12:56:04 +01:00
parent 4fde012a90
commit a1ca0c99de
1 changed files with 3 additions and 0 deletions
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src/corelib/io/qprocess.cpp
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@ -1378,6 +1378,9 @@ void QProcess::setStandardInputFile(const QString &fileName)
Calling setStandardOutputFile() after the process has started has Calling setStandardOutputFile() after the process has started has
no effect. no effect.
If \a fileName is an empty string, it stops redirecting the standard
output. This is useful for restoring the standard output after redirection.
\sa setStandardInputFile(), setStandardErrorFile(), \sa setStandardInputFile(), setStandardErrorFile(),
setStandardOutputProcess() setStandardOutputProcess()
*/ */