Hi
I had the same similar issue, I was using a parent widget, with buttons and a
frame with a child qglwidget derived class.
What I did was to create a method in the child qglwidget derived class to
initialize the shaders, and I only calls this method inside the showEvent() of
the parent widget class.
Regards
Joao de Deus
Em Sexta-feira, 29 de Novembro de 2013 6:58, Csaba Csernai
<[email protected]> escreveu:
Hi everyone!
I would like to ask your help in some Qt 5 matter. I think it's somewhat
related to QTBUG-31451, but not sure.
When I create a QGLWidget with a parent which not yet visible, then it seems to
fail to compile shaders although QGLContext is valid( at least the isValid
function returns true).
e.g.: there is a tab widget, which is visible, and from code we add another
tab, so that it contains a QWidget and inside the QWidget, there is a
QGLWidget( yeah, i kno w it's messed up, but that's it). So when we create the
QGLWidget with the QWidget parent, the QWidget is not visible, and - as far as
i discovered - it has no window handle.
It worked fine, in 4.8, and i compile with msvc 11.0.
My question is that is it a bug or did I miss something? Would someone point me
in the right direction?Should i post my findings to the mentioned bug thread or
create a new one?
Thanks.
Bye,
--
Csaba Csernai
C/C++ Software Developer
Mediso Medical Imaging Systems Ltd.
Hungary, H-1022 Budapest,
Alsótörökvész 14.
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