CoreComponentInputSource.GetCurrentKeyEventDeviceId Method
Definition
Important
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Retrieves the unique ID for the input device that generated this key event.
GetCurrentKeyEventDeviceId is not supported for all input devices.
public:
virtual Platform::String ^ GetCurrentKeyEventDeviceId() = GetCurrentKeyEventDeviceId;winrt::hstring GetCurrentKeyEventDeviceId();public string GetCurrentKeyEventDeviceId();function getCurrentKeyEventDeviceId()Public Function GetCurrentKeyEventDeviceId () As StringReturns
A unique identifier for the input device associated with the key event, or an empty string. The same device can be assigned a different ID each time it is connected.
After a key event is processed, this method returns an empty string.
Windows requirements
| Device family |
Windows 10 Anniversary Edition (introduced in 10.0.14393.0)
|
| API contract |
Windows.Foundation.UniversalApiContract (introduced in v3.0)
|
Remarks
Use GetCurrentKeyEventDeviceId to differentiate between devices that can generate key events, such as multiple game controllers. The device id is useful for associating the input device with a specific user account.
To get a valid device ID, this method must be called from your KeyUp and KeyDown event handlers.