xfree86 man page for dmxqueryextension

DMXQueryExtension(3X)													     DMXQueryExtension(3X)

NAME
       DMXQueryExtension - determine if DMX is available

SYNOPSIS
       #include <X11/extensions/dmxext.h>

       Bool DMXQueryExtension(Display *dpy,
			      int *event_basep,
			      int *error_basep);

DESCRIPTION
       DMXQueryExtension() determines if the DMX protocol extension is available.  It will be available if the server is an Xdmx(1) server.

RETURN VALUE
       If  the	DMX  protocol extension is available, event_basep and error_basep will be set to the event and error bases, respectively, and True
       will be returned.  Otherwise, False will be returned.

SEE ALSO
       DMXQueryVersion(3X), DMX(3X), Xdmx(1)

XFree86 							   Version 4.7.0					     DMXQueryExtension(3X)