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August 2nd, 2011, 08:47 AM
#1
Hook CoGetClassObject
Hi,
I try to hook the CoGetClassObject() function.
In fact, the function is hooked but I can't manage to do what CoGetClassObject() does.
Well, I dont know what CoGetClassObject() does exactly so it's a bit hard to try to "emulate" it.
Here is my code :
Code:
HRESULT WINAPI MyCoGetClassObject( __in REFCLSID rclsid,
__in DWORD dwClsContext,
__in_opt LPVOID pServerInfo,
__in REFIID riid,
__out LPVOID *ppv
){
[...]
if( it!= dict.end() ){
module = LoadLibraryWReal(it->second.c_str());
if(!module)
return HRESULT_FROM_WIN32(GetLastError());
dllGetClassObject = (FUNC) GetProcAddress(module,"DllGetClassObject");
if(!dllGetClassObject)
return HRESULT_FROM_WIN32(GetLastError());
hr = dllGetClassObject(rclsid, IID_IClassFactory, &pClassFactory);
if (FAILED(hr))
return hr;
return S_OK;
}
return CoGetClassObjectReal( rclsid,dwClsContext,pServerInfo,riid,ppv);
}
So it seems that I forgot "few" instructions, but I don't know which.
If anyone has an idea,
thanks.
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