prj/cam/src/object/querynul.h

   1 /*
   2 @Copyright Looking Glass Studios, Inc.
   3 1996,1997,1998,1999,2000 Unpublished Work.
   4 */
   5
   6 // $Header: r:/t2repos/thief2/src/object/querynul.h,v 1.4 2000/01/29 13:24:49 adurant Exp $
   7 #pragma once
   8
   9 #ifndef __QUERYNUL_H
  10 #define __QUERYNUL_H
  11 #include <lnkquery.h>
  12
  13 ////////////////////////////////////////////////////////////
  14 // THE NULL LINK QUERY
  15 //
  16 // Has no links.  Is always done.  So there.
  17 //
  18
  19 class cNullLinkQuery : public ILinkQuery
  20 {
  21    DECLARE_UNAGGREGATABLE();
  22 public:
  23    cNullLinkQuery() {};
  24
  25    STDMETHOD_(BOOL,Done)() const;
  26    STDMETHOD(Link)(sLink* link) const;
  27    STDMETHOD(Next)();
  28
  29    STDMETHOD_(LinkID,ID)() const { return LINKID_NULL;};
  30    STDMETHOD_(void*,Data)() const { return NULL;};
  31    STDMETHOD_(ILinkQuery*,Inverse)() { AddRef(); return this;};
  32 };
  33
  34
  35
  36 #endif // __QUERYNUL_H
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