#include "copyright.h"

/* $XConsortium: XQuExt.c,v 11.14 88/09/06 16:09:56 jim Exp $ */
/* Copyright    Massachusetts Institute of Technology    1986	 */

#define NEED_REPLIES
#include "Xlibint.h"

Bool
XQueryExtension (dpy, name, major_opcode, first_event, first_error)
  register Display *dpy;
  char *name;
  int *major_opcode;		/* RETURN */
  int *first_event;		/* RETURN */
  int *first_error;		/* RETURN */
{
  xQueryExtensionReply rep;
  register xQueryExtensionReq *req;

  LockDisplay (dpy);
  GetReq (QueryExtension, req);
  req->nbytes = name ? strlen (name) : 0;
  req->length += (req->nbytes + 3) >> 2;
  _XSend (dpy, name, (long) req->nbytes);
  (void) _XReply (dpy, (xReply *) & rep, 0, xTrue);
  *major_opcode = rep.major_opcode;
  *first_event = rep.first_event;
  *first_error = rep.first_error;
  UnlockDisplay (dpy);
  SyncHandle ();
  return (rep.present);
}