AVVideoCompositionLayerInstruction.GetOpacityRamp Method
Definition
Important
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Gets the opacity ramp that includes the specified time
.
[Foundation.Export("getOpacityRampForTime:startOpacity:endOpacity:timeRange:")]
public virtual bool GetOpacityRamp (CoreMedia.CMTime time, ref float startOpacity, ref float endOpacity, ref CoreMedia.CMTimeRange timeRange);
abstract member GetOpacityRamp : CoreMedia.CMTime * * * -> bool
override this.GetOpacityRamp : CoreMedia.CMTime * * * -> bool
Parameters
- time
- CMTime
- startOpacity
- Single
- endOpacity
- Single
- timeRange
- CMTimeRange
Returns
- Attributes