[Qt-creator] Qt Creator 3.4 binaries will be compiled with MSVC 2013 (dynamic opengl)

Ziller Eike Eike.Ziller at theqtcompany.com
Wed Apr 1 09:43:06 CEST 2015

> On Apr 1, 2015, at 3:07 AM, Henry Skoglund <fromqt at tungware.se> wrote:
> Hi,
> about my gripe that Qt 5.4.1 didn't install the MSVC dlls into Windows, 
> you are right, it sure did, my bad! (The culprit was me copying the 
> MSVC2013 dlls manually earlier on to make my Creator plugin work, which 
> I of course forgot :-) And 5.4.1 anyway, as you wrote, uses MSVC2010.
> And about that opengl32sw.dll crash: since you can delete the file as a 
> workaround I think it's no big deal, I mentioned XP in VirtualBox and 
> VMWare Fusion work fine which I think is the vast majority of the XP 
> users remaining, it's just Workstation and Player that bombs, and that 
> on a Ubuntu PC that has no graphics card, just the Haswell integrated 
> graphics).

> (BTW I tested with SET QT_OPENGL=software but no change).

Yeah, my bad, I didn’t realize that opengl32sw.dll is actually the software renderer, that is obviously problematic  :D

> Happy Easter! Rgrds Henry
> On 2015-03-31 09:02, Koehne Kai wrote:
>>> -----Original Message-----
>>> From: Henry Skoglund [mailto:fromqt at tungware.se]
>>> Sent: Tuesday, March 31, 2015 2:48 AM
>>> To: qt-creator at qt-project.org; Koehne Kai
>>> Subject: Re: [Qt-creator] Qt Creator 3.4 binaries will be compiled with MSVC
>>> 2013 (dynamic opengl)
>>> Hi, couldn't resist taking you up on that XP claim :-)
>>> I tested Qt Creator 3.3.81 built morning of March 30:
>>> * On my XP machine: works fine (no patching required!)
>>> * Windows 10 latest preview: works fine (future proof)
>>> * Windows XP in Virtual Box 4.3.10: works fine
>>> * Windows XP in VMWare Fusion 6.0.5: works fine
>>> * Windows XP in VMWare Workstation 11.1.0: crashes with illegal instruction
>>> in opengl32sw.dll :-( The cure is to delete that file opengl32sw.dll and try
>>> again, then Qt Creator works, except of course for the Welcome plugin which
>>> is not so welcoming)
>>> So why the snag in the VMWare Workstation XP? Well I ran qtdiag.exe (BTW
>>> what an excellent program that is, has no pretty UI but in my mind it's part of
>>> the real gold in Qt) turns out in both VMWare cases it's the same vmx_fb.dll
>>> that's used, for the XP in Fusion it returns LibGL vendor VMWare Inc. format
>>> version 2.0, which seems kosher for opengl32sw.dll. But for the XP in
>>> Workstation 11 it returns LibGL vendor Microsoft Corp Generic GDI format
>>> version 1.1, and that's probably why opengl32sw.dll goes haywire and has to
>>> be taken out behind the barn and shot.
>> As Eike already mentioned opengl32sw.dll is only used as a last fallback, so this migh explain the difference too. Bad enough, I had hopes the software renderer really works across all graphics drivers :(
>> (It doesn't crash for me btw with a stock Windows XP in VirtualBox).
>>> + also for now installing the MSVC2013 dlls into the bowels of Windows,
>>> the vanilla Qt 5.4.1 installs them alongside qtcreator.exe and as you know this
>>> is heavily frowned upon by Microsoft. (Unless of course you are Microsoft, in
>>> that case you can grant yourself an exemption from this rule like when
>>> installing the new Visual C++ Tools/Windows 10 Kit.)
>> Huh? I don't think we've changed anything in this regard, we've been installing vcredist for MSVC2010 previously, now vcredist for MSVC2013 ...
>>> Rgrds Henry
>> Thanks a lot for the testing :)
>>> P.S. BTW saw that 3.3.81 brings along Timeline.dll, is that a new feature (QML
>>> profiler stuff)?
>> Not really a feature, just factoring out stuff in a separate dll AFAIK.
>> Regards
>> Kai
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Eike Ziller, Senior Software Engineer - The Qt Company GmbH
The Qt Company GmbH, Rudower Chaussee 13, D-12489 Berlin
Geschäftsführer: Mika Pälsi, Juha Varelius, Tuula Haataja
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