FrameClock.beginUpdating

Starts updates for an animation.

Until a matching call to [gdk.frame_clock.FrameClock.endUpdating] is made, the frame clock will continually request a new frame with the [gdk.types.FrameClockPhase.Update] phase. This function may be called multiple times and frames will be requested until [gdk.frame_clock.FrameClock.endUpdating] is called the same number of times.