Re: [g-a-devel] How does at-spi communicate with gail ??

[Bill Haneman <Bill Haneman Sun COM>]

Hi Vamsi:

The atk-bridge contains the answer to both of your questions.  It is
both the service which adapts the in-process ATK interfaces (implemented
by gail) to the out-of-process AT-SPI interfaces, exported via CORBA
IPC.  If you look closely at at-spi/atk-bridge/bridge.c, you will see
where the connections take place.

It is also the code which registers each application with the
at-spi-registryd Registry service, when the application initially starts
up, via gnome_accessibility_module_init().

Here's a process-space diagram showing how apps, the AT-SPI registry,
and assistive technologies communicate:

http://developer.gnome.org/projects/gap/tech-docs/SPIBlockDiagram.png

regards

Bill

On Tue, 2006-03-14 at 22:58, Vamsi wrote:
> Hi List,
> 
> I'm trying to understand how the accessibility works !! i have some 
> doubts regarding the same.
> 
> 1. How does the at-spi, atk-bridge and gail communicate with each other.
>     do they corba(bonobo) to communicate, if yes i have not seen any 
> corba related code in gail then how it is passing the info to at-spi 
> along with atk-bridge ??
> 
> 2. When we launch an application on the desktop how does it registers 
> itself with at-spi registryd. how the communication is getting 
> transferred from application to at-spi ??
> 
> Thank You.
> 
> -Vamsi
> 
> 
> 
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