58d6910afa
StepControl methods SetSpeed, SetNoiseParameters, and SetPauseState now return a boolean indicating whether the state was actually changed. The GUI functions NoiseGui and StepControlGui also return a boolean reflecting if any parameters were modified. Noise parameters are now directly managed by StepControl rather than being stored in UxState. The StepControlEvent message has been expanded to include all step control parameters. Keyboard event handling has been slightly refactored to better align with event-based updates. PiperOrigin-RevId: 940656342 Change-Id: I3701623a2fdcfc4c084b5db0ae19048669040de4