共用方式為

GazeDeviceWatcherPreview 類別

  • 參考

定義

命名空間:
Windows.Devices.Input.Preview
編輯

動態偵測並列舉眼球追蹤裝置，並在初始列舉之後新增、移除或更新裝置時接收事件通知。

public ref class GazeDeviceWatcherPreview sealed
/// [Windows.Foundation.Metadata.ContractVersion(Windows.Foundation.UniversalApiContract, 393216)]
/// [Windows.Foundation.Metadata.MarshalingBehavior(Windows.Foundation.Metadata.MarshalingType.Agile)]
/// [Windows.Foundation.Metadata.Threading(Windows.Foundation.Metadata.ThreadingModel.Both)]
class GazeDeviceWatcherPreview final
/// [Windows.Foundation.Metadata.ContractVersion(Windows.Foundation.UniversalApiContract, 393216)]
/// [Windows.Foundation.Metadata.MarshalingBehavior(Windows.Foundation.Metadata.MarshalingType.Agile)]
class GazeDeviceWatcherPreview final
[Windows.Foundation.Metadata.ContractVersion(typeof(Windows.Foundation.UniversalApiContract), 393216)]
[Windows.Foundation.Metadata.MarshalingBehavior(Windows.Foundation.Metadata.MarshalingType.Agile)]
[Windows.Foundation.Metadata.Threading(Windows.Foundation.Metadata.ThreadingModel.Both)]
public sealed class GazeDeviceWatcherPreview
[Windows.Foundation.Metadata.ContractVersion(typeof(Windows.Foundation.UniversalApiContract), 393216)]
[Windows.Foundation.Metadata.MarshalingBehavior(Windows.Foundation.Metadata.MarshalingType.Agile)]
public sealed class GazeDeviceWatcherPreview
Public NotInheritable Class GazeDeviceWatcherPreview
繼承
Object Platform::Object IInspectable GazeDeviceWatcherPreview
屬性
ContractVersionAttribute MarshalingBehaviorAttribute ThreadingAttribute

Windows 需求

裝置系列
Windows 10, version 1803 (已於 10.0.17134.0 引進)
API contract
Windows.Foundation.UniversalApiContract (已於 v6.0 引進)

方法

Start()

開始監視眼球追蹤器裝置的狀態。
Stop()

停止監視眼球追蹤器裝置的狀態。

事件

Added

偵測到新的眼球追蹤器裝置時發生。
EnumerationCompleted

當 GazeDeviceWatcherPreview 完成識別連接的眼球追蹤器裝置時發生。
Removed

當不再偵測到現有的眼球追蹤器裝置時發生。
Updated

發生于對現有眼球追蹤器裝置進行更新時，例如校正。

適用於

另請參閱