I am trying to resolve a pesky problem involving conversion from const char* to CComBSTR. I am apparently not using quite the right format, when passing the input files to the function

hres = swDocMgr->GetDocument( docPath, swDmDocumentAssembly, VARIANT_TRUE, &res, &swDoc );

// http://stackoverflow.com/questions/606075/how-to-convert-char-to-bstr

// It appears the input files cannot be opened, due to some compiler specific conversion from char* to bstr:

CComBSTR docPath = filenamePtr;                          // filenamePtr is of type const char*

// How should I revise the statement above?

cerr << swDocMgr;

cerr << filenamePtr;

cerr << docPath;

cerr << swDmDocumentAssembly;

cerr << "hres: " << hres << ", S_OK = " << S_OK << ", res: " << res << ", swDoc: " << swDoc;

hres = swDocMgr->GetDocument( docPath, swDmDocumentAssembly, VARIANT_TRUE,  &res, &swDoc );

cerr << swDocMgr;

cerr << filenamePtr;

cerr << docPath;

cerr << swDmDocumentAssembly;

cerr << "hres: " << hres << ", S_OK = " << S_OK << ", res: " << res << ", swDoc: " << swDoc;

The corresponding output typically looks like this:

0x975eb2c

D:/Baldur_Imagars_19june2016/Imagars LLC - Automatic Image Recognition/Collaboration - Portland State Univ/Ecosystem Evaluations/Kart2 team - Spring 2016/Capstone Stand Final AssemblyB/ME 492 Stand Hitch Connection.SLDASM

0xcbfc6cc

0

hres: 0 , S_OK = 0 , res: 4 , swDoc: 0x0

0x975eb2c

D:/Baldur_Imagars_19june2016/Imagars LLC - Automatic Image Recognition/Collaboration - Portland State Univ/Ecosystem Evaluations/Kart2 team - Spring 2016/Capstone Stand Final AssemblyB/ME 492 Stand Hitch Connection.SLDASM

0xcbfc6cc

0

hres: -2147221230 , S_OK = 0 , res: 4 , swDoc: 0x0