[Interest] QtQuick under Windows Remote Desktop?

Shantanu Tushar shaan7in at gmail.com
Wed Oct 21 07:01:12 CEST 2015


You're welcome :)

On Wed, Oct 21, 2015 at 12:07 AM, Michael R Nelson <mnelson at sutron.com>
wrote:

> Your post was very helpful, thanks.
>
>
>
> I’ve confirmed the driver selection works as described in the link you
> posted, even in the Qt 5.5.1 mingw install I’m using. I’ve lost track of
> what may have been at issue originally, as it all works as it’s supposed to
> now, but suspect perhaps I stumbled across a case where the driver
> selection logic errantly proceeds with OpenGL. In any case, it’s working
> now, thanks again for your input.
>
>
>
> Mike
>
>
>
> *From:* Shantanu Tushar [mailto:shaan7in at gmail.com]
> *Sent:* Tuesday, October 20, 2015 3:40 AM
> *To:* Michael R Nelson <mnelson at sutron.com>
> *Cc:* Gunnar Roth <gunnar.roth at gmx.de>; interest at qt-project.org
> *Subject:* Re: RE: [Interest] QtQuick under Windows Remote Desktop?
>
>
>
> Adding to what Gunnar said, a very easy way to see what mode your app
> actually is running is to use
> http://technet.microsoft.com/en-in/sysinternals/bb896653.aspx and see
> what DLLs are loaded. If libGLES and friends are loaded, its ANGLE,
> otherwise it will be opengl32.dll from windows system directory.
>
> Also from
> http://blog.qt.io/blog/2014/11/27/qt-weekly-21-dynamic-opengl-implementation-loading-in-qt-5-4/
> -
>
> Pro tip: The debug output printed from the platform plugin can be very
> helpful to check which implementation gets loaded. To enable these prints,
> set the environment variable QT_LOGGING_RULES to qt.qpa.gl=true.
>
>
>
>
>
> On Mon, Oct 19, 2015 at 6:53 PM, Michael R Nelson <mnelson at sutron.com>
> wrote:
>
> Hi Gunnar,
>
>
>
> I do have libegl.dll and libGLESv2.dll in qt bin folder. I’ll see if I can
> get better results using MSVC2013 tool-chain.
>
>
>
> Thanks,
>
> Mike
>
>
>
> *From:* Gunnar Roth [mailto:gunnar.roth at gmx.de]
> *Sent:* Monday, October 19, 2015 9:04 AM
> *To:* Michael R Nelson <mnelson at sutron.com>
> *Cc:* Shantanu Tushar <shaan7in at gmail.com>; interest at qt-project.org
> *Subject:* Aw: RE: [Interest] QtQuick under Windows Remote Desktop?
>
>
>
> Hi Michael,
>
> i cannot find any information concerning Qt mingw build supporting ANGLE.
> So I assume it does not support it. Do you have libegl and libGLESv2.dll in
> the qt bin folder? These are angle dlls.
>
>
>
> My selfbuild qt with vs2012 and -opengl dynamic option configured, works
> with open gl and angle and uses angle when doing a remote desktop
> connection.
>
> AFAIK current qt msvc build binaries also are build with opengl dynamic
> option.
>
>
>
> Regards,
>
> Gunnar
>
>
>
>
>
> *Gesendet:* Montag, 19. Oktober 2015 um 14:35 Uhr
> *Von:* "Michael R Nelson" <mnelson at sutron.com>
> *An:* "Gunnar Roth" <gunnar.roth at gmx.de>, "Shantanu Tushar" <
> shaan7in at gmail.com>
> *Cc:* "interest at qt-project.org" <interest at qt-project.org>
> *Betreff:* RE: [Interest] QtQuick under Windows Remote Desktop?
>
> Hello,
>
> Thanks for your response.
>
> I installed using offline installer, Qt 5.5.1 for Windows 32-bit (MinGw
> 4.9.2).
> My OS is Windows 7, 64-bit.
>
> Here's my main:
>
> int main(int argc, char *argv[])
> {
> QCoreApplication::setAttribute(Qt::AA_UseOpenGLES);
>
> QApplication app(argc, argv);
>
> QQmlApplicationEngine engine;
> engine.load(QUrl(QStringLiteral("qrc:/main.qml")));
>
> return app.exec();
> }
>
> Thanks,
> Mike
>
>
> -----Original Message-----
> From: Gunnar Roth [mailto:gunnar.roth at gmx.de <gunnar.roth at gmx.de>]
> Sent: Saturday, October 17, 2015 2:25 PM
> To: Michael R Nelson <mnelson at sutron.com>
> Cc: interest at qt-project.org
> Subject: Re: [Interest] QtQuick under Windows Remote Desktop?
>
> Why don’t you give us the Version of Qt, you are using ? What windows
> version?
> Did you build qt yourself? What is your configure line , if yes?
>
> Regards,
> Gunnar
>
>
> > Am 17.10.2015 um 14:36 schrieb Michael R Nelson <mnelson at sutron.com>:
> >
> > Hello,
> >
> > I would like our QtQuick app to be viewable/usable over Windows Remote
> Desktop. My understanding is that means using ANGLE rather than OpenGL. I
> thought this could be forced at run-time by calling
> QCoreApplication::setAttribute(Qt::AA_UseOpenGLES), but the outcome was the
> same (no window content and lots of OpenGL related warnings). Is a run-time
> switch of some sort possible? Or, must the app be compiled differently? Can
> someone provide some hints as to how I can get this working?
> >
> > Thanks,
> > Mike
> >
> >
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> --
>
> Shantanu Tushar    (UTC +0530)
> shantanu.io
>
> ------------------------------
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-- 
Shantanu Tushar    (UTC +0530)
shantanu.io
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