[PyOpenGL-Users] Attempt to retrieve context when no valid context - repost

[Mads I. <mp...@co...>]

For some reason, this post ended up as a response to a previous post. This
was unintended - sorry.

Hi,

I am running an app in a PyQt based QGLWidget. If the window is minimized,
and the method for rendering the object that should be displayed is
called, I get the error 'OpenGL.error.Error: Attempt to retrieve context
when no
valid context' (included below), when glColorPointerd() is called.

Is there:

* a way to check whether a valid context is set?
* force the context to be set?

Best regards,

Mads

glColorPointerd(colors)
  File
"/home/mpi/svn/quantumconnect/external-libs/build/lib/python2.6/site-packages/OpenGL/wrapper.py",
line 410, in wrapperCall
    cArgs,
  File
"/home/mpi/svn/quantumconnect/external-libs/build/lib/python2.6/site-packages/OpenGL/arrays/arrayhelpers.py",
line 66, in __call__
    contextdata.setValue( self.constant, pyArgs[self.pointerIndex] )
  File
"/home/mpi/svn/quantumconnect/external-libs/build/lib/python2.6/site-packages/OpenGL/contextdata.py",
line 49, in setValue
    context = getContext( context )
  File
"/home/mpi/svn/quantumconnect/external-libs/build/lib/python2.6/site-packages/OpenGL/contextdata.py",
line 32, in getContext
    """Attempt to retrieve context when no valid context"""
OpenGL.error.Error: Attempt to retrieve context when no valid context