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"federico" <federico@sandiasazules.com> wrote in message
news:42a9b5da@newsgroups.borland.com...

> -first I'm not exactly sure how to declare an object of this class

    TIdURI *uri = new TIdURI("URIToParse");
    //...
    delete uri;

> It wasnt on the pallet

TIdURI is not a component to begin with, thus it does not appear on the
Component Palette.

> [C++ Error] mess.cpp(62): E2034 Cannot convert 'AnsiString'
> to 'TMetaClass *'

URLEncode() is declared as a 'class' method in Indy's Delphi source code.
The closest C++ equivilent (but not exactly the same) is a 'static' method.
Like a 'static' method, a 'class' method does not need an object instance in
order to be called.  The difference between a Delphi 'class' method and a
C++ 'static' method, however, is that the class type information is passed
to a 'class' method, whereas it is not in a 'static' method.  That is where
the extra TMetaClass parameter comes into play in C++ (it is implicitally
passed in Delphi, much like the 'this' pointer is for non-static methods).
In C++, you have to pass in the class type manually, via the __classid()
keyword, ie:

    ... = something->URLEncode(__classid(TIdURI), Edit->Text);

Or alternatively, without an object instance:

    ... = TIdURI::URLEncode(__classid(TIdURI), Edit->Text);

> And well on the documentation it says that the function headers
> are like this:
>
>  function URLDecode(psSrc: string)

That is a Delphi declaration, not a C++ declaration.  Indy is written in
Delphi, and the documentation shows Delphi examples, not C++ ones.  If you
look in IdURI.hpp, you will see this instead:

    /* class method */ static AnsiString __fastcall URLEncode(TMetaClass*
vmt, const AnsiString ASrc);


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