ossimCallback2wRet.h

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//----------------------------------------------------------------------------
//
// File: ossimCallback2wRet.h
// 
// License:  MIT
// 
// See LICENSE.txt file in the top level directory for more details.
//
// Author:  David Burken
//
// Description:
//
// Simple templated callback class that takes a two parameters(arguments) "P1"
// and has a return "RT".
//
// See link for more detail description:
// http://www.tutok.sk/fastgl/callback.html
// 
//----------------------------------------------------------------------------
// $Id$

#ifndef ossimCallback2wRet_HEADER
#define ossimCallback2wRet_HEADER 1

template <class P1, class P2, class RT> class ossimCallback2wRet
{
public:
   ossimCallback2wRet(){}
   virtual ~ossimCallback2wRet(){}
   virtual RT operator()(P1 p1, P2 p2) const = 0;
};

#endif /* #ifndef ossimCallback2wRet_HEADER */