Re: Telephony Application Programming Interface

["Yannick Duchêne (Hibou57)" <yannick_duchene@yahoo.fr>]

Le Wed, 07 Nov 2012 09:10:24 +0100, MAriusz <irmar@duno.pl> a écrit:

> http://msdn.microsoft.com/en-us/library/windows/desktop/ms728171(v=vs.85).aspx
>
> How to do it in ADA ?

Create a function definition for `CoInitializeEx` and `CoCreateInstance`,  
then instead of creating a body, imports with C++ convention. Map  
constants `NULL`, `COINIT_MULTITHREADED` to Ada typed constants, with  
appropriate representations and conventions. Similarly, create a mapping  
of `ITTAPI` as an Ada record. I don't know how well typical Ada compilers  
handles C++ dispatching, so I wonder what to do for `gpTapi->Initialize()`.

Alternatively and simpler, you may compile the whole snippet to an object  
file, and bind to this object file with its own simplified interface  
instead of to the Windows API directly. That's a good option (something  
like pre-re-interfacing) when one don't want to bind to a full API but  
only to a particular usage of it.

You may look at [Annex B — Interface to Other  
Languages](http://www.adaic.org/resources/add_content/standards/05rm/html/RM-B.html)  
for more on the topic.


-- 
“Syntactic sugar causes cancer of the semi-colons.” [1]
“Structured Programming supports the law of the excluded muddle.” [1]
[1]: Epigrams on Programming — Alan J. — P. Yale University