[Interest] Is the OpenGL vs Angle distinction important for widget apps?

[Ian Monroe]

You are forgetting about QtWebEngine. It needs opengl of some sort
regardless of whether you use Qml or QWidgets.

On Sun, Mar 22, 2015, 09:30 Agocs Laszlo <laszlo.agocs at theqtcompany.com>
wrote:

> As long as the application is pure widgets, without ever using QOpenGL/QGL
> classes or QQuickWidget, it will not attempt to initialize any OpenGL
> stuff. (if that's not the case, it's a bug, we had some of these recently,
> like QTBUG-43832) This means that not having OpenGL or ANGLE working (or
> available) is not a problem for such apps.
>
> Starting with 5.5 the only type of pre-built packages for Windows are the
> dynamic GL ones, so the confusion of needing to ship ANGLE libs even for
> widget-only apps will go away.
>
> Cheers,
> Laszlo
>
>
> ________________________________________
> From: interest-bounces+laszlo.agocs=theqtcompany.com at qt-project.org
> <interest-bounces+laszlo.agocs=theqtcompany.com at qt-project.org> on behalf
> of Giuseppe D'Angelo <dangelog at gmail.com>
> Sent: Sunday, March 22, 2015 4:48 PM
> To: Nikos Chantziaras
> Cc: interest at qt-project.org
> Subject: Re: [Interest] Is the OpenGL vs Angle distinction important for
> widget apps?
>
> On 22 March 2015 at 10:28, Nikos Chantziaras <realnc at gmail.com> wrote:
> > For applications that don't use Qml and only use QWidget, does it matter
> > whether Qt was built with OpenGL or Angle on Windows?
>
> It still matters because
>
> 1) ANGLE means extra dependencies to be shipped along your app
> 2) ANGLE does not work on Windows XP
>
> So for pure-widgets applications it might make more sense to use the
> Desktop OpenGL build of Qt. YMMV :)
>
> --
> Giuseppe D'Angelo
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