1. Ethen Park's Avatar
    How can i receive the hardware key button event On Windows phone 8 App?

    I have many problem,

    I developed the WP8 App in the WP Device OEM Manufacturers.
    So I can access to "OS, Device Driver, App".
    But there are various MS documents, By First Time,
    The developement is too hard.
    The WP 8 is available features are very limited. The Windows CE / WM is a very different behavior.

    I want to access the OS Layer by the API (Funtion)

    Back button : Success. I found this key event.
    Home button : ??? (I don't know)
    Search button : ??? (I don't know)
    Volume Up / Down : Just working volume.
    Camera Key : Can i change the default camera app?
    Power Key : Can i optionally lock the power key?
    OEM Key (Barcode Key) : Push the button, I want to execute the My App?

    Have you ever used these methods can I?
    - Named Event
    - SendMessage / PostMessage
    - Other Communication

    I guess the Key-Point "How can i communicate Device driver <-> App"

    I am studying now the following Function.
    - Service Agent
    - IPC

    Please help me any infomation the you think good... Have a nice day.
    03-08-2014 10:29 AM
  2. WanderingTraveler's Avatar
    You should really ask this in the Developers' Corner.

    But, since this is already here, I'll lend you what I know.

    Windows ley is hardcoded to bring you to Start (quick press) and the voice control agent (long press). Search will send you to...the Bing Search page.

    For Volume Up/Down, and the hardware lock button, ask the dev behind Quick Tiles. He might know.
    As for the rest, I think it's better to contact Microsoft directly, or as I suggested earlier, ask this question in the Developers' Corner.
    (Actually, just have this moved by a mod.)
    Ethen Park likes this.
    03-08-2014 10:46 AM
  3. Ethen Park's Avatar
    Thanks for your comment.
    I will contact Microsoft directly.
    I will write the question in the Developers' Corner.
    03-09-2014 09:25 PM

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