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DeviceInformation.CreateWatcher | createWatcher methods
Overload list
| Method | Description |
|---|---|
| CreateWatcher() | Creates a DeviceWatcher for all devices. |
| CreateWatcher(String) | Creates a DeviceWatcher for devices matching the specified Advanced Query Syntax (AQS) string. |
| CreateWatcher(DeviceClass) | Creates a DeviceWatcher for devices matching the specified DeviceClass. |
| CreateWatcher(String, IIterable(String)) | Creates a DeviceWatcher for devices matching the specified Advanced Query Syntax (AQS) string and the specified collection of properties. |
Remarks
The DeviceWatcher first performs an initial enumeration of devices, raising an Added event for each device that it finds, and raising an EnumerationCompleted event when the initial enumeration is complete. After the initial enumeration is complete, it raises events when a device is added, deleted, or updated.
Note An app must subscribe to all of the added, removed, and updated events to be notified when there are device additions, removals or updates. If an app handles only the added event, it will not receive an update if a device is added to the system after the initial device enumeration completes.
Requirements
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Minimum supported client | Windows 8 |
|---|---|
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Minimum supported server | Windows Server 2012 |
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See also
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