Re: [PyOpenGL-Users] GL_VENDOR

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

René Dudfield wrote:
> On Thu, Sep 24, 2009 at 7:48 AM, Mads Ipsen <mp...@co...> wrote:
>   
>> How come glGetString(GL_VENDOR) returns None if I don't have an OpenGL
>> context?
>>
>> My innocent purpose of querying the vendor string is to display some
>> driver info in an 'about box'. Normally I get the context by launching a
>> QGLWidget from Qt, but it would be really silly to do this for the
>> purpose of displaying an about box.
>>
>> All tricks and suggestions are most welcome,
>>
>> Mads
>>
>>     
> Hi,
>
> That can crash on some machines too without a connection.  It's for
> querying the GL connection, so you need a connection to use it.
>
> Reading from the glxinfo program might be another idea to try... if
> it's there on the platform.
>
> cheers,
>
>   
OK, so how do I in the simplest possible manner set up an OpenGL context
so I can query the vendor string, i.e. without opening any redundant
windows?

Calling glxinfo (or any other external program) is not an option, since
we do cross platform development.

Mads

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| Mads Ipsen, Scientific developer                           |
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