how to detect wired headset and BT handsfree button

[jonnekodu]

Which API should be used to capture wired headset and BT handsfree button? I have tested several candidates without any success so far.

• I am able to detect volume button and mute button events using Remote Control API, but I don't get any events when I am pressing the answer-hangup-call-button. This kind of confirms what I have noticed about Remote Control API:
  http://wiki.forum.nokia.com/index.ph...ing_media_keys
  "Note that on most devices only volume keys can be used in 3rd party applications using this API"
  
  
  
• I have also tested the S60 extension KAccessoryModeChanged API (using the instructions from: http://wiki.forum.nokia.com/index.ph...odeChanged_API) without any success.
  
  StartListeningL(KHeadsetButtonChanged,sizeof(EPSButtonState),EOnlyLast) ;
  is executed without errors, but the HeadsetButtonChangedL(EPSButtonState aState)
  callback is not executed when pressing wired headset button nor BT handsfree button. I have tested on E65, E51 and N82.
  
  
  
• I have also tried to capture RED and GREEN keys according to this:
  http://wiki.forum.nokia.com/index.ph..._during_a_call
  
  But no RED or GREEN key is sent when pressing the answer-hangup-button on my heaset.
  

Actually I would like to catch the headset key in my application whenever it is pressed, i.e. not (only) in incoming or active call cases.

Please help me find out what I am missing.

[jonnekodu]

Finally I have found a solution for FP1 devices (E51 and N82) and FP2 devices (N78):

I am using yet another API called Remote Control Extension API (from FP2 SDK extension): http://wiki.forum.nokia.com/index.ph..._Extension_API

And with that API the AnswerEndCall() callback is called when the answer/hangup-call-button is pressed on the wired headset.

On MR devices (E65) this solution is unfortunately not working.


And I have not been able to detect the answer/hangup-call-button on Bluetooth headset on any devices yet.

[tidbeck]

Works well on a E52 (FP2 device)

Thanks for the info!

[biren]

hello, does it work on symbian 3, or belle ?