QTCaptureDevice.Notifications.ObserveFormatDescriptionsWillChange 方法
定义
重要
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重载
| ObserveFormatDescriptionsWillChange(EventHandler<NSNotificationEventArgs>) | |
| ObserveFormatDescriptionsWillChange(NSObject, EventHandler<NSNotificationEventArgs>) |
ObserveFormatDescriptionsWillChange(EventHandler<NSNotificationEventArgs>)
public static Foundation.NSObject ObserveFormatDescriptionsWillChange (EventHandler<Foundation.NSNotificationEventArgs> handler);static member ObserveFormatDescriptionsWillChange : EventHandler<Foundation.NSNotificationEventArgs> -> Foundation.NSObject参数
- handler
- EventHandler<NSNotificationEventArgs>
返回
适用于
ObserveFormatDescriptionsWillChange(NSObject, EventHandler<NSNotificationEventArgs>)
public static Foundation.NSObject ObserveFormatDescriptionsWillChange (Foundation.NSObject objectToObserve, EventHandler<Foundation.NSNotificationEventArgs> handler);static member ObserveFormatDescriptionsWillChange : Foundation.NSObject * EventHandler<Foundation.NSNotificationEventArgs> -> Foundation.NSObject参数
- objectToObserve
- NSObject
- handler
- EventHandler<NSNotificationEventArgs>