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/* Copyright (C) 2002-2005 RealVNC Ltd. All Rights Reserved.
*
* This is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This software is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this software; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,
* USA.
*/
// Helper class managing dynamic linkage to DLL functions.
#ifndef __RFB_WIN32_DYNAMICFN_H__
#define __RFB_WIN32_DYNAMICFN_H__
#include <windows.h>
namespace rfb {
namespace win32 {
class DynamicFnBase {
public:
DynamicFnBase(const TCHAR* dllName, const char* fnName);
~DynamicFnBase();
bool isValid() const {return fnPtr != 0;}
protected:
void* fnPtr;
HMODULE dllHandle;
private:
DynamicFnBase(const DynamicFnBase&);
DynamicFnBase operator=(const DynamicFnBase&);
};
template<class T> class DynamicFn : public DynamicFnBase {
public:
DynamicFn(const TCHAR* dllName, const char* fnName) : DynamicFnBase(dllName, fnName) {}
T operator *() const {return (T)fnPtr;};
};
};
};
#endif
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