Performs a GST_QUERY_CONTEXT query of type "gst.gl.local_context" on all #GstPads in element of direction for the local OpenGL context used by GStreamer elements.
a #GstElement to query from
the #GstPadDirection to query
location containing the current and/or resulting #GstGLContext
whether context_ptr contains a #GstGLContext
Performs a GST_QUERY_CONTEXT query of type "gst.gl.local_context" on all #GstPads in element of direction for the local OpenGL context used by GStreamer elements.