An app uses this interface to start and stop location requests, to set the level of accuracy required by the app, and to receive location data from the native code layer as it becomes available. The top layer of the location service is the managed interface, exposed through a DLL that is included with Windows SDK. The native code layer also communicates over the Internet with a Microsoft-hosted web service to look up location-related information from a database. This layer communicates directly with the available sources of location data and decides which sources to use to determine the location of the device based on the availability of data and on the performance requirements specified by the application. On top of the hardware sits the native code layer. These can all function as providers of location data with varying levels of accuracy and power consumption. This includes the GPS receiver, Wi-Fi, and the cellular radio. The first layer of the location services architecture consists of hardware in the device. Until the user grants your app permission to their location, your app can't access location data. At that time, your app must be in the foreground and RequestAccessAsync must be called from the UI thread. Starting in Windows 10, call the RequestAccessAsync before accessing the user’s location. Under Choose apps that can use your location, your app is set to onįor more information about location privacy, see the Windows Privacy Statement.The location services setting, Location, is turned on.is turned on (not applicable to Windows 10 Mobile) Your app can access the user's location only when: The user sets the privacy of their location data with the location privacy settings in the Settings app. This additional information is optional when the location information comes from other sources. In addition to latitude and longitude, GPS also provides information about heading, speed, and altitude. IP address : between approximately 1,000 meters and 5,000 meters.Cell towers : between approximately 300 meters and 3,000 meters.Wi-Fi : between approximately 30 meters and 500 meters.The latitude and longitude may vary within the following ranges: The accuracy of the location information depends on the source. The API provides the most appropriate geolocation data from all available sources. Location information may come from estimating a position from beacons like Wi-Fi access points and cell towers, from the device's IP address, or it may come from other sources such as a GNSS or GPS device.
Provides APIs for getting the current location or tracking the device's location over time.
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