parameter(_:channel:hasKeyframe:at:)
Tells whether there is a keyframe at a given time.
Declaration
func parameter(_ parameterID: Int, channel channelIndex: Int, hasKeyframe: UnsafeMutablePointer<ObjCBool>, at time: CMTime) -> (any Error)?Parameters
- parameterID:
The ID of the parameter you wish to query.
- channelIndex:
The index of the channel of the parameter you wish to query.
- hasKeyframe:
Returns whether or not the channel of the parameter specified has a keyframe at the time specified.
- time:
The time at which you wish to know if there’s a keyframe.
See Also
Instance Methods
add(_:toParameter:andChannel:)channelCount(_:forParameter:)keyframe(_:atOrAfter:fromParameter:andChannel:)keyframe(_:atOrBefore:fromParameter:andChannel:)keyframe(_:forParameter:channel:andIndex:)keyframeCount(_:forParameter:andChannel:)removeAllKeyframes(forParameter:andChannel:)removeKeyframe(at:fromParameter:andChannel:)setKeyframeIndex(_:with:forParameter:andChannel:)