Problem with typedef redefinition.

[w0wbagger 3]

Hey folks, I imported the Type Library for Quickbooks Foundation Class for my C++ Builder Program (Using 12.2, 32-bit). Now, when I try to compile it, I get one of two errors.

If I don't add #include "comdef.h", I get a bunch of missing _bstr_t declarations.

If I *do* add "comdef.h", which is something I found recommended when getting the previous error, I get a number of typedef redefinitions (utilcls.h and comdef.h apparently define several types differently) - heres' one:
c:\program files (x86)\embarcadero\studio\23.0\include\windows\sdk\comdef.h(836): error E5551: typedef redefinition with different types ('_com_ptr_t<_com_IIID<IDispatch, ((const IID *)0)> >' vs 'TComInterface< ::IDispatch, &IID_IDispatch>' (aka 'TComInterface<IDispatch, &IID_IDispatch>'))
c:\program files (x86)\embarcadero\studio\23.0\include\windows\rtl\utilcls.h(2807): error E67: previous definition is here

If I instead add #include "comutil.h", all the errors go away until linking, where I get:
[ilink32 Error] Error: Unresolved external '__stdcall _com_issue_error(long)' referenced from C:\USR\SRC\NGB\PROIMPORT\WIN32\DEBUG\QUICKBOOKSTEST.OBJ

all references to this particular unresolved external I've found online suggest adding "#include "comdef.h", which results in the *second* error up above. Maybe I can just add a #pragma link "xxxx"? What's the "xxxx" here?

Thanks in advance,

I.

[w0wbagger 3]

Well,  found this in utilcls.h, so I defined USING_COM_SMARTPTR, and it removed the name clashes, but even after including comdef.h, it can't find the function. Any ideas?

 

#if defined(_INC_COMDEF) || defined(USING_COM_SMARTPTR)

  /*
    If someone wants to use definitions from COMDEF.H and UTILCLS.H, the following
    makes sure that the common typenames do not conflict.
    Define USING_COM_SMARTPTR if you have to include COMDEF.H after UTILCLS.H

    WARNING
    =======
    In order to avoid name clashes (unfortunately none of these types are
    namespaced), we'll rename the types in UTILCLS.H to contain an '_' suffix.

    EXAMPLE
    =======
    The following allows you to use both IDispatchPtr from COMDEF.H and
    IDispatchPtr from UTILCLS.H.

    IDispatchPtr  msDispatch;  _com_ptr version defined in COMDEF.H
    IDispatchPtr_ bDispatch;   TCOMInterface version in UTILCLS.H
  */

  #pragma message "Typenames collision with COMDEF.H (WARNING) "

  #define IDispatchPtr       IDispatchPtr_
  #define IUnknownPtr        IUnknownPtr_
  #define IFontPtr           IFontPtr_
  #define IFontDispPtr       IFontDispPtr_
  #define IPicturePtr        IPicturePtr_
  #define IPictureDispPtr    IPictureDispPtr_
  #define IEnumVARIANTPtr    IEnumVARIANTPtr_

#endif

 

[w0wbagger 3]

I just made my own __stdcall _com_issue_error(long), and it seemed to work. Now I just need to figure out why CreateInstance is failing for QBSessionManager.