glXQueryContextInfoEXT - query context information



C SPECIFICATION

       int glXQueryContextInfoEXT( Display *dpy,
                                   GLXContext ctx,
                                   int attribute,
                                   int *value )



PARAMETERS

       dpy        Specifies the connection to the X server.


       ctx        Specifies a GLX rendering context.


       attribute  The  visual  ID  that  the  context was created
                  with.


       value      The X screen the the context was created for.


       _param5    The context with which this context shares dis-
                  play  lists.   or NULL if this context does not
                  share display lists.



DESCRIPTION

       glXQueryContextInfoEXT  returns the the visual id,  screen
       number, and share list of ctx. This call may cause a round
       trip to the server.

       glXQueryContextInfoEXT is part of  the  EXT_import_context
       extension,  not  part  of  the  core  GLX  command set. If
       GLX_EXT_import_context is included in the string  returned
       by  glXQueryExtensionsString,  when  called  with argument
       GLX_EXTENSIONS, extension EXT_import_context is supported.



ERRORS

       GLXBadContext  is  generated  if  ctx  does not refer to a
       valid context.



SEE ALSO

       glXCreateContext,                         glXQueryVersion,
       glXQueryExtensionsString