Specific Application filter while desktop sharing

I need help for the specific application filter while on desktop sharing. i.e i have to share entire Desktop with current running processe except server application window (UI).
http://blogs.msdn.com/b/rds/archive/2007/03/23/writing-a-desktop-sharing-application.aspx

I got the samples for desktop sharing using Windows Desktop Sharing References. In that I need to filter the specific  application. But i didn't know How to do that.
By using following things we can try to filter the specific Application. But I want to know, how to call Viewer side share property to fire the OnApplicationUpdate Event on server side.
RDPSRAPI_APP_FLAGS& RDPSRAPI_WND_FLAGS enumeration - How to set the flag for specific application to give high level security process.
IRDPSRAPIApplicationFilter
_IRDPSessionEvents_OnApplicationUpdateEventHandler

Please give me some examples to do this....

Thanks
Narmadha