cOSModDyn.h

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//
//
#ifndef _INC_cOSModDyn_H
#define _INC_cOSModDyn_H
#ifndef NO_PRAGMA_ONCE
#pragma once
#endif
 
#include "../GrayLibBase.h"
#include "GrayCore/include/cOSModImpl.h"
#include "GrayCore/include/cAppState.h"
 
namespace GrayLib
{
        class GRAYLIB_LINK cOSModDyn : public cOSModImpl
        {
 
                typedef cOSModImpl SUPER_t;
 
        public:
                cOSModDyn(const char* pszModuleName) noexcept
                        : cOSModImpl(pszModuleName)
                {
                }
 
                virtual HRESULT RegisterModule(DWORD dwGrayLibVer, cOSModDyn** ppMod, IUnknown* pContainer)
                {
 
                        UNREFERENCED_PARAMETER(pContainer);
                        if (dwGrayLibVer != _INC_GrayLibBase_H)
                                return HRESULT_WIN32_C(ERROR_PRODUCT_VERSION);
 
                        // My *Core DLL is the correct version and packing is correct?
                        HRESULT hRes = cAppState::CheckValidSignature(_INC_GrayCore_H, sizeof(cAppState));
                        if (FAILED(hRes))
                                return hRes;
 
                        ASSERT(IsLoaded());
                        if (ppMod != nullptr)
                        {
                                *ppMod = this;
                        }
                        return S_OK; // We are good with dwGrayLibVer!
                }
 
                virtual void UnRegisterModule()
                {
                        // Unload all my connected data (if possible)
                }
        };
 
        typedef HRESULT(GRAYCALL COSMod_RegisterModuleC)(UINT32 dwGrayLibVer, cOSModDyn** ppMod, IUnknown* pContainer);
 
#ifdef USE_64BIT
#define COSMod_RegisterModuleS GRAY_NAMES "_RegisterModule"     // Gray_RegisterModule name as a string. 64 bit
#else
#define COSMod_RegisterModuleS "_" GRAY_NAMES "_RegisterModule@12"      // Gray_RegisterModule name as a string. 32 bit name has decoration.
#endif
 
#ifdef GRAY_DLL // _WINDLL
        // Declare/expose *_RegisterModule() for dynamically pluggable DLL.
#define COSMODULE_RegisterModule_IMPL(N) COSMODULE_IMPL(N); \
extern "C" __DECL_EXPORT HRESULT GRAYCALL CATOM_CAT(Gray,_RegisterModule)(DWORD dwGrayLibVer, ::GrayLib::cOSModDyn** ppMod, IUnknown* pContainer) { return N::g_Module.RegisterModule(dwGrayLibVer, ppMod, pContainer); }
#else
#define COSMODULE_RegisterModule_IMPL(N)
#endif // GRAY_DLL
 
}
 
#endif