Int64KeyFrame is the base class for three types of long key frames: discrete, linear, and spline. Each of the three subclasses of Int64KeyFrame represents a key frame with a distinct interpolation technique, indicated by its name: <Linearint64KeyFrame KeyTime="0:0:10|Uniform|Paced|30%" Value="1" /> <DiscreteInt64KeyFrame KeyTime="0:0:10|Uniform|Paced|30%" Value="1" /> <SplineInt64KeyFrame KeyTime="0:0:10|Uniform|Paced|30%" Value="1" > <SplineInt64KeyFrame.KeySpline> <KeySpline ControlPoint1="5,5" ControlPoint2="10,10" /> </SplineInt64KeyFrame.KeySpline> </SplineInt64KeyFrame> All three Int64KeyFrame subclasses determine when (KeyTime) the frame will reach the designated value (Value). KeyTime is specified in terms of hours:minutes:seconds. The Value attribute of all Int64KeyFrame subclasses is a Long.
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