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78 lines
2.1 KiB
78 lines
2.1 KiB
//=================================================================
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//
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// DllWrapperBase.h
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//
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// Copyright (c) 1999-2001 Microsoft Corporation, All Rights Reserved
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//
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//=================================================================
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#ifndef _DLLWRAPPERBASE_H_
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#define _DLLWRAPPERBASE_H_
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#include "ResourceManager.h"
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#include "TimedDllResource.h"
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/******************************************************************************
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* Function pointer typedefs. Add new functions here as required.
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*****************************************************************************/
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// << section empty in base class only>>
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/******************************************************************************
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* Wrapper class to load/unload, for registration with ResourceManager.
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******************************************************************************/
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class CDllWrapperBase : public CTimedDllResource
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{
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private:
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// Member variables (function pointers) pointing to dll procs.
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// Add new functions here as required.
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BOOL GetVarFromVersionInfo(LPCTSTR a_szFile,
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LPCTSTR a_szVar,
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CHString &a_strValue);
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BOOL GetVersionLanguage(void *a_vpInfo, WORD *a_wpLang, WORD *a_wpCodePage);
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HINSTANCE m_hDll; // handle to the dll this class wraps
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LPCTSTR m_tstrWrappedDllName; // name of dll this class wraps
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protected:
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// Handy wrapers to simplify calls and hide m_hDll...
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bool LoadLibrary();
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FARPROC GetProcAddress(LPCSTR a_strProcName);
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public:
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// Constructor and destructor:
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CDllWrapperBase(LPCTSTR a_chstrWrappedDllName);
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~CDllWrapperBase();
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// Initialization function to check function pointers. Requires derived
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// class implementation.
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virtual bool Init() = 0;
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// Helper for retrieving the version.
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BOOL GetDllVersion(CHString& a_chstrVersion);
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// Member functions wrapping dll procs.
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// Add new functions here as required:
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// << section empty in base class only >>
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};
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#endif
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