🚀 go-pugleaf

After reviewing the code in question, I guess it is indeed
valid and proper C++.  Yet, it won't compile for me.
Perhaps I need some #include?

      [C++ Error] CByteSize.cpp(3): E2303 Type name expected

The error messages in C++ Builder are just awful (compared
to JBuilder X).  I should probably upgrade to C++ Builder X.

Still, any guidance or tips on how to get started with the shell
extensions are very much welcome.

Thanks,

-Ramon


Ramon F Herrera wrote:

> 
> I am a complete newbie in this area, having come from the
> Unix/Java side of the fence.  My objective is to add custom
> properties (columns) to the display and sorting of the
> Windows Shell in "View Details" mode.
> 
> I already ordered the "Inside COM" book to get started.
> 
> Now the question:  In the following link, I found 5 blocks of code:
> 
> http://msdn.microsoft.com/library/default.asp?url=/library/en-us/dnwui/html/shellcolhand.asp 
> 
> 
> The 4 last blocks are obviously valid C++ code, but the one that
> has got me puzzled is the first block:
> 
> --------------------------------------------------------------------------
> class CByteSize : public IUnknown,
>                   public IPersist,
>                   public IColumnProvider
> {
>     /* IUnknown */
>     STDMETHODIMP QueryInterface(REFIID riid, LPVOID *ppvOut);
>     STDMETHODIMP_(ULONG) AddRef();
>     STDMETHODIMP_(ULONG) Release();
> 
>     /* IPersist */
>     STDMETHODIMP GetClassID(CLSID *pclsid);
> 
>     /* IColumnProvider */
>     STDMETHODIMP Initialize(LPCSHCOLUMNINIT);
>     STDMETHODIMP GetColumnInfo(DWORD dwIndex, LPSHCOLUMNINFO psci);
>     STDMETHODIMP GetItemData(LPCSHCOLUMNID pscid, LPCSHCOLUMNDATA pscd, 
> VARIANT *pvarData);
> };
> --------------------------------------------------------------------------
> 
> The above is supposed to "Create a Column Handler Object".
> Is that C++ code or some sort of special COM metalanguage?
> Should I just paste it into C++ Builder and compile it
> somehow?
> 
> Thanks for your kind assistance,
> 
> -Ramon F Herrera
> 
> 
>