大漠对象的创建

方法一:

	WinExec("regsvr32.exe dm.dll /s",SW_SHOW);
	Cdmsoft dm;
	CoInitialize(NULL);
	CLSID clsid;
	HRESULT hr=CLSIDFromProgID(OLESTR("dm.dmsoft"),&clsid);
	Idmsoft *ptr;
	hr = CoCreateInstance(clsid,NULL,CLSCTX_INPROC_SERVER,__uuidof(Idmsoft),(LPVOID*)&ptr);
	string s = ptr->Ver();
	CoUninitialize();

方法二：免注册方式

//创建新的大漠对象
Idmsoft *InitNewDm()
{
	Idmsoft *m_dm = NULL;
	//COleVariant temp1,temp2;
	bool m_bInit = false;

	//下面直接加载dll创建对象，避免进行注册文件
	typedef HRESULT (__stdcall * pfnGCO) (REFCLSID, REFIID, void**);
	pfnGCO fnGCO = NULL;
	HINSTANCE hdllInst = LoadLibrary("dm.dll");
	fnGCO = (pfnGCO)GetProcAddress(hdllInst, "DllGetClassObject");
	if (fnGCO != 0)
	{
		IClassFactory* pcf = NULL;
		HRESULT hr=(fnGCO)(__uuidof(dmsoft), IID_IClassFactory, (void**)&pcf);
		if (SUCCEEDED(hr) && (pcf != NULL))
		{
			hr = pcf->CreateInstance(NULL, __uuidof(Idmsoft), (void**)&m_dm);
			if ((SUCCEEDED(hr) && (m_dm != NULL))==FALSE)
				return false;
		}
		pcf->Release();
		m_bInit=true;
	}
	else
		m_bInit=false;

	return m_dm;
};