onPenMove
fun onPenMove(pen: Long, pointArray: DoubleArray, predictionArray: DoubleArray?, repaint: Boolean): PenInkResult?(source)
Extends the active stroke for pen.
pointArray contains committed seven-value touch records. predictionArray may contain a single uncommitted record; predicted geometry is returned separately and never advances the committed renderer state. repaint is retained for vendor API compatibility.
Return
generated ink, or null when pen is not registered