AVCaptureDevice.VideoZoomFactor 属性

定义

命名空间:

AVFoundation

程序集:

Xamarin.iOS.dll

视频捕获的当前缩放。

[ObjCRuntime.Introduced(ObjCRuntime.PlatformName.iOS, 7, 0, ObjCRuntime.PlatformArchitecture.All, null)]
public virtual nfloat VideoZoomFactor { [Foundation.Export("videoZoomFactor")] [ObjCRuntime.Introduced(ObjCRuntime.PlatformName.iOS, 7, 0, ObjCRuntime.PlatformArchitecture.All, null)] get; [Foundation.Export("setVideoZoomFactor:")] [ObjCRuntime.Introduced(ObjCRuntime.PlatformName.iOS, 7, 0, ObjCRuntime.PlatformArchitecture.All, null)] set; }

member this.VideoZoomFactor : nfloat with get, set

属性值

nfloat

值 1.0 表示全帧 (完全缩小) 。

属性

IntroducedAttribute ExportAttribute

注解

此值是缩放量的倒数。 例如，值 2.0 表示包含一半视野的缩放。