[Interest] [Qt3D] Get OpenGL Information

[Andy]

I have something working on Mac OS X that I'm trying to get working on
Windows.  I would like access to the OpenGL context so I can see what I'm
actually getting when I try to set the format.

I have a QWindow subclass and I'm doing this (same as the examples I think):

   setSurfaceType( QSurface::OpenGLSurface );


   QSurfaceFormat format;


   if ( QOpenGLContext::openGLModuleType() == QOpenGLContext::LibGL )

   {

      format.setVersion( 4, 3 );

      format.setProfile( QSurfaceFormat::CoreProfile );

   }


   format.setDepthBufferSize( 24 );

   format.setSamples( 4 );

   format.setStencilBufferSize( 8 );


   setFormat( format );

   create();


The docs for QWindow::format() state explicitly that the OpenGL information
may not be updated in create(), so use the QOpenGLContext's format() to get
this information instead.

How do I get access to my subclassed QWindow's QOpenGLContext using Qt3D?
I see a QOpenGLInformationService class that I think provides the info I
want, but it's private.

Thanks!

---
Andy Maloney  //  https://asmaloney.com
twitter ~ @asmaloney <https://twitter.com/asmaloney>
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