From: Björn Schäpers <qt-maill...@hazardy.de> Sent: Monday, March 6, 2023 12:18 PM To: Scott Bloom <sc...@towel42.com>; interest@qt-project.org Subject: Re: [Interest] QProcess unbuffered
Am 06.03.2023 um 02:11 schrieb Scott Bloom: I have an external executable (mkvalidator from https://www.matroska.org/downloads/mkvalidator.html It never flushes the output, and it uses linefeed without carriage returns to overwrite existing text on the output. The problem is, when I run it via QProcess (on windows, Qt 5.15.10), I get zero output until the process ends. As if it was buffered, and the output was finally flushed When running from the command line, I do get output continuously during the processing. I setup a timer to waitForRead, didn’t do anything. I cant seem to force the QProcess to read all stdout or stderror info. Any thoughts? TIA Scott _______________________________________________ Interest mailing list Interest@qt-project.org<mailto:Interest@qt-project.org> https://lists.qt-project.org/listinfo/interest Hi, I had the exact same problem (but without QProcess). You have to use a trick to disable the buffering, I don't know if its possible with QProcess, you will have to use QProcess::CreateProcessArgumentModifier or most likely CreateProcess directly. If there is interest I can copy some of my data, but currently I can't access it. Kind regards, Björn. I would love any info/data you can provide. Feel free to email me privately if you want. Thanks Scott
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