AddDataFromInputSource
int AddDataFromInputSource(CInputSource * pInputSource, int nMaxBytes = -1, int * pBytesAdded = NULL);
THROW_ON_ERROR(spAPECompress->AddDataFromInputSource(spInputSource.GetPtr(), nBytesLeft, &nBytesAdded))
virtual int AddDataFromInputSource(CInputSource * pInputSource, int nMaxBytes = -1, int * pBytesAdded = NULL) = 0;