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How a driver to notify Metro style app

    Question

  • Hi MSFT,

     I have a Metro style app which could access my customized UMDF device driver through IOControl API, now I have the requirement as below:

    UMDF driver needs to notify the Metro style app. How can I implement this feature?

    I have tried global event and failed to create/open it in Metro style app, any other ways to notify Metro app in UMDF driver?

    Thanks!


    Qiusheng Xie

    Wednesday, August 15, 2012 2:05 AM

Answers

  • In the dark ages this usually worked via a delayed ioctl request. The app posts a request, which remains pending indefinitely, until the driver has something to update. Won't it work the same way in "Metro" world?

    -- pa

    • Marked as answer by Qiusheng Xie Monday, August 20, 2012 1:18 AM
    Sunday, August 19, 2012 2:08 PM

All replies

  • Can you please explain the scenario in more detail? What sort of notification are you trying to raise?

    --Rob

    Thursday, August 16, 2012 1:47 AM
    Moderator
  • In the dark ages this usually worked via a delayed ioctl request. The app posts a request, which remains pending indefinitely, until the driver has something to update. Won't it work the same way in "Metro" world?

    -- pa

    • Marked as answer by Qiusheng Xie Monday, August 20, 2012 1:18 AM
    Sunday, August 19, 2012 2:08 PM
  • In the dark ages this usually worked via a delayed ioctl request. The app posts a request, which remains pending indefinitely, until the driver has something to update. Won't it work the same way in "Metro" world?

    -- pa


    Thanks, our current solution is right this.

    Qiusheng Xie

    Monday, August 20, 2012 1:18 AM