How to detect GRPS signal strength of Mobile?

[crazystone]

Hello, Guys

I'm trying to retrieve the GPRS signal strength of Mobile Device(Sony Erission w580c).I included TAPI.h in c++ project,but faild to retrieve exactly result,it always return 65535 when the GPRS existed and 0 when the GPRS not existed.
I tried to deduce GPRS signal as to retrieve the expected deduced signal strength,but it still return 65535.

Note:[1] FindLines [2]OpenLine [3]GetLineStatus

Thanks for any help in advance.

Regards

Jackie

 

[crazystone]

btw, I'm now working in windows platform not wince or winmobile .