void OptCycle(
	float positionPhysStart,
	int nbrSteps,
	float stepSizePhys,
	Action<bool> endAction,
	IProgress<int> progress,
	CancellationTokenSource tokenSource
)

void OptCycle(
	float positionPhysStart, 
	int nbrSteps, 
	float stepSizePhys, 
	Action<bool>^ endAction, 
	IProgress<int>^ progress, 
	CancellationTokenSource^ tokenSource
)