[Interest] QOpenGLContext::currentContext() returning nullptr (in some cases)

[Giuseppe D'Angelo]

Il 21/12/2016 16:00, Andy ha scritto:
> In what situations should I expect QOpenGLContext::currentContext() to
> return a nullptr? I thought with the fallback/ANGLE stuff I could always
> expect at least the ANGLE stuff to kick in - as in the second example.

Well, the situation is far more complex, and there's no "ANGLE
fallback". Read the docs on Windows and its "dynamic GL" support to
better understand the role of ANGLE in all of this. Besides, ANGLE only
provides OpenGL ES 2 (3?), so it cannot possibly provide a (Desktop)
OpenGL 3.3 context.

HTH,
-- 
Giuseppe D'Angelo | giuseppe.dangelo at kdab.com | Senior Software Engineer
KDAB (UK) Ltd., a KDAB Group company | Tel: UK +44-1625-809908
KDAB - Qt, C++ and OpenGL Experts

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