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  • Blog Post: Understanding Access Denied when working with ISensor::GetState() and ISensor::GetProperty()

    In last week’s blog post we provided best practice guidance for Sensor State management in Location Sensors. At the bottom of that post we mention that SENSOR_STATE_ACCESS_DENIED is reserved and should only be used by the Platform. As a follow-on post we wanted to briefly dig into an issue that some...
  • Blog Post: The Sensor and Location Drill Down – Part 3: The Location API

    Over the last few weeks we have been providing an introduction to the Sensor and Location Platform by examining each component in the platform in greater detail. We started first with an overview of the Sensor and Location Platform . This was followed up with a drill down in the Sensor DDI or Device...
  • Blog Post: The Sensor and Location Drill Down - Part 2: The Sensor API

    We continue our overview of the Sensor and Location Platform this time focusing on the Sensor API. The Sensor API is made up of several COM Interfaces but where to start and how does it all fit together? Today we’ll answer that question. The Sensor API is used by applications that want to access sensors...
  • Blog Post: The Sensor and Location Platform Drill Down – Part 1 : The Sensor DDI

    Welcome back and Happy New Year! As we resume our blog in the new year, we begin by doing a series of what we call drill-down posts, where we look at a particular part of the Sensor & Location Platform and do a deep dive into its various components and piece through its technical aspects. We begin...
  • Blog Post: Sensor & Location Platform – The 50,000-Foot View

    The Sensor & Location platform for Windows 7 is essentially a set of COM APIs designed to interact with a variety of sensor devices in a standard manner. Rather than explain it in words, here is a neat picture that shows the 50,000-Foot view of the platform components: As you can see, there are two...
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