For getting useful help from yours, I illustrate my question in detail more
cleary:

We now have two types of UI, including (1)UI_mythtv which is based on C/C++
platform, and (2)UI_bundle which is based on OSGi;

***Project Requirments:
Firstly, the use would watch the (1)UI_mythtv UI, and one item choice
named: OSGI-service is included in this (1)UI_mythtv;      when user choose
this OSGi-service item choice, the (2)UI_bundle UI shold appear and cover
the previous UI and be watched by user.
All of these operation would only be based on Keyboard.

***My current implementation sheme:
I used one UIBundle.sh file to run the seconde (2)UI_bundle bunle which has
been installed in OSGi framwork, and when user choose OSGi-service item,
this UIBundle.sh would run automatically, and then the UIBundle would
start.
The content of this UIBundle.sh is as follows:
**********************************************************
#UIBundle.sh file:
cd /home/knopflerfish_osgi_2.0.1/knopflerfish.org/osgi
java -jar framework.jar
**********************************************************
Now, the (2)UI_bundle UI can appear properlly and cover the UI_mythtv, but
I can not return from (2)UI_bundle UI to (1)UI_mythtv UI properlly,if I
press "ESC", the system would stop and be dead.

(Question 1:)How to solve this problem return back from (2)UI_bundle UI to
(1)UI_mythtv UI?

(Question 2:)Do you have any suggestion about how to relize and implement
the project requirements?


Many thanks for you, any suggestion would be welcome!
Hope to get your help!

Jerry Xi
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