User Interface Service Software Developerís Guide - Hitech Projects

January 2008
Public
The gesture service passes gesture events to the client through WSEventing.
The client subscribes to gesture events by using WSEventing method
Subscribe(string eventName, WSEventingSink.NotificationDelegate notificationDelegate,
DateTime expires).
On the server side, special WSEvent attribute gstNotification is used to export gesture events
as remote events through WSEventing to the client.
Mechanisms of interaction
When gesture service is launched it needs to be initialized with the following parameters:
hostname of your computer and name of the serial port where the controller (SoapBox) is
connected. The service application asks user to this information. After the service is running
the client can be launched. After the client has subscribed the service by using SetParameters
method, it starts receiving gesture events every time they occur.
The client side does not handle the error situation if the server falls out. So the preferred order
to shut the clientserver system down is to (1) exit client, (2) exit service and (3) close the
recogniser application which the service uses.
Overview and reference to internals
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Detailed documentation
D41. and D4.2 provides general descriptions about the architecture and functionalities of the
3D Gesture Service.
Amigo IST-2004-004182 59/114