[Qtwebengine] Qt 5.4.2 MSVC WebEngine use

[Kai Koehne]

> -----Original Message-----
> [...]
> Anyway, the issue seems to be that this host application does not use Qt
> built with -opengl. But for my plugin I built it against the Qt -opengl version.
> And when loading my plugin it still uses the non opengl version. Mixing
> binaries leads to crashes.

Yes, this is a delicate setup. You should really use the same Qt version, otherwise
bad things will happen (TM).

Another option might be to configure your Qt with -qtnamespace and
-qtlibinfix.
 
> I am not using QtQuick but still require the opengl support to use
> QWebEngineView?
> Could you please clarify what is required to run web engine?

QWebEngineView uses the SceneGraph in the QtQuick module as a compositor.
So yes, even if you use Qt5WebEngineWidgets it uses Qt Quick, which in
turn relies on a graphics part directly supporting OpenGL, ANGLE, llvmpipe, 
or the Qt Quick 2D Renderer.

Regards

Kai