Den mån 6 mars 2023 kl 21:21 skrev Scott Bloom <sc...@towel42.com>: > > > > 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 > > 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.
If possible, keep it on the list, to not leave us hanging. I think it's valuable for both Qt devs and users to see other people's laundry, even if it's a bit dirty :) Elvis > > Thanks > > Scott > > _______________________________________________ > Interest mailing list > Interest@qt-project.org > https://lists.qt-project.org/listinfo/interest _______________________________________________ Interest mailing list Interest@qt-project.org https://lists.qt-project.org/listinfo/interest
