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.TH DMXQueryExtension 3X __vendorversion__
.SH NAME
DMXQueryExtension \- determine if DMX is available
.SH SYNOPSIS
.B #include <X11/extensions/dmxext.h>
.sp
.nf
.BI "Bool DMXQueryExtension(Display " *dpy ,
.BI "                       int " *event_basep ,
.BI "                       int " *error_basep );
.fi
.SH DESCRIPTION
.B DMXQueryExtension()
determines if the DMX protocol extension is available.  It will be
available if the server is an
.BR Xdmx (1)
server.
.SH "RETURN VALUE"
If the DMX protocol extension is available,
.I event_basep
and
.I error_basep
will be set to the event and error bases, respectively, and
.B True
will be returned.  Otherwise,
.B False
will be returned.
.SH "SEE ALSO"
.BR DMXQueryVersion "(3X), "
.BR DMX "(3X), " Xdmx (1)

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