glXGetContextIDEXT - get the XID for a context.



C SPECIFICATION

       GLXContextID glXGetContextIDEXT( const GLXContext ctx )



PARAMETERS

       ctx  Specifies a GLX rendering context.



DESCRIPTION

       glXGetContextIDEXT  returns the XID associated with a GLX-
       Context.

       No round trip is forced to the server; unlike most X calls
       that return a value, glXGetContextIDEXT does not flush any
       pending events.

       glXGetContextIDEXT  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



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