Can't use ActiveX in C++

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   m_sModuleName = _T("C:/Program Files/Debenu/PDF Library/ActiveX/DebenuPDFLibraryAX0912.dll");
...
HMODULE hModule = ::LoadLibrary((LPCTSTR)m_sModuleName);
        if( hModule != NULL ) {
            IClassFactory* aClassFactory = NULL;
            DllGetClassObjectFunc aDllGetClassObjectFunc = (DllGetClassObjectFunc)::GetProcAddress(hModule, "DllGetClassObject");
            Hr = aDllGetClassObjectFunc(m_clsid, IID_IClassFactory, (LPVOID*)&aClassFactory);
            if( SUCCEEDED(Hr) ) {
                Hr = aClassFactory->CreateInstance(NULL, IID_IOleObject, (LPVOID*)&pOleControl);
            }
            aClassFactory->Release();
        }

When it went to:
Hr = aClassFactory->CreateInstance(NULL, IID_IOleObject, (LPVOID*)&pOleControl);
The Hr was set the value "E_NOINTERFACE".

(I have installed the library and registered the dll.)

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changzz Members Profile Find Members Posts Beginner Joined: 18 Mar 13 Status: Offline Points: 1	Post Options Post Reply Quote changzz Report Post Thanks(0) Quote Reply Topic: Can't use ActiveX in C++ Posted: 18 Mar 13 at 10:07AM
	m_sModuleName = _T("C:/Program Files/Debenu/PDF Library/ActiveX/DebenuPDFLibraryAX0912.dll"); ... HMODULE hModule = ::LoadLibrary((LPCTSTR)m_sModuleName); if( hModule != NULL ) { IClassFactory* aClassFactory = NULL; DllGetClassObjectFunc aDllGetClassObjectFunc = (DllGetClassObjectFunc)::GetProcAddress(hModule, "DllGetClassObject"); Hr = aDllGetClassObjectFunc(m_clsid, IID_IClassFactory, (LPVOID)&aClassFactory); if( SUCCEEDED(Hr) ) { Hr = aClassFactory->CreateInstance(NULL, IID_IOleObject, (LPVOID)&pOleControl); } aClassFactory->Release(); } When it went to: Hr = aClassFactory->CreateInstance(NULL, IID_IOleObject, (LPVOID*)&pOleControl); The Hr was set the value "E_NOINTERFACE". (I have installed the library and registered the dll.)

AndrewC Members Profile Find Members Posts Moderator Group Joined: 08 Dec 10 Location: Geelong, Aust Status: Offline Points: 841	Post Options Post Reply Quote AndrewC Report Post Thanks(0) Quote Reply Posted: 21 Mar 13 at 7:59AM
	Hello, Have you tried referring to the DebenuPDFLibraryAX0912.cpp and DebenuPDFLibraryAX0912.h files in the ActiveX\Import\CPlusPlus directory of your Debenu PDF Library installation ? All of the required code should be included in these 2 files. Andrew.