DeviceWatcher.Start | start method
Starts a search for devices, and subscribes to device enumeration events.
Syntax
Public Sub Start()
Parameters
This method has no parameters.
Remarks
An app calls Start to begin the search for devices. During this intial enumeration, the DeviceWatcher raises an Added event for each device that's found, until all devices are found. The DeviceWatcher raises an EnumerationCompleted event when the initial enumeration is complete, and continues to raise events if a device is added, updated, or removed.
The Start method can only be called when the DeviceWatcher is in the Created, Stopped or Aborted state. The Status property indicates the DeviceWatcher state. When re-starting the watcher, wait for the Stopped event before calling Start.
The following diagram shows how the DeviceWatcher transitions between the states represented by DeviceWatcherStatus enumeration.
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
