[Lazarus] IUnknown and reference counting

[Mark Morgan Lloyd]

Sven Barth wrote:
> Am 21.03.2013 14:40, schrieb Mark Morgan Lloyd:
>> Michael Schnell wrote:
>>> On 03/21/2013 12:30 PM, Graeme Geldenhuys wrote:
>>
>>>> COM is Component Object Model and DCOM is Distributed Component Object
>>>> Model, developed by Microsoft. This only works on the Windows platform.
>>>> That is how the do ActiveX, and how Delphi does multi-tier support with
>>>> MIDAS (using DCOM).
>>> That is exactly why I think the *language-concept* (here a thingy 
>>> that provides reference counting, auto-creation and auto-deletion of 
>>> an instance etc of a classes instance) should be described 
>>> independently of COM, DCOM, Axtive X, MIDAS and such things that are 
>>> not related to the language itself, while the language concept/syntax 
>>> - being useful in itself, anyway, can *additionally* be used to allow 
>>> the programmer to handle COM, DCOM, Axtive X, MIDAS and such things.
>>
>> It's also interesting to be able to state unambiguously whether the 
>> use of interfaces in a program pulls in any external libraries or 
>> attempts any external communication.
>>
> The use of interfaces themselves does not pull in any external libaries. 
> They are merely implemented in a way to simplyfy the use of certain 
> libraries.

Thanks for that clarification :-)

-- 
Mark Morgan Lloyd
markMLl .AT. telemetry.co .DOT. uk

[Opinions above are the author's, not those of his employers or colleagues]