glXGetCurrentDisplay.3G - Man Page
get display for current context
C Specification
Display * glXGetCurrentDisplay( void )
Description
glXGetCurrentDisplay returns the display for the current context. If no context is current, NULL is returned.
glXGetCurrentDisplay returns client-side information. It does not make a round trip to the server, and therefore does not flush any pending events.
Notes
glXGetCurrentDisplay is only supported if the GLX version is 1.2 or greater.