public static void Start()
{
if (StepDiagram != null)
{
throw new Exception("Unable to start twice. Already listening. Call HookEngine.Stop after calling HookEngine.Start");
}
activeWindowHandle = Win.GetActiveWindow();
StepDiagram = new StepDiagram();
cpuUsageCalculator = new CpuUsageCalculator();
currentProcessTimer = new Timer(CheckCpuUsage, null, 100, 100);
HookEvents();
StepDiagram.AddTaskActive(WindowsEvents.GetActiveWindowTitle(), Win.GetForegroundWindow());
}
public static StepDiagram Stop()
{
if (StepDiagram == null)
{
throw new Exception("Call to Stop() failed. Must call HookEngine.Start before calling HookEngine.Stop.");
}
lock (currentProcessTimerLocker)
{
currentProcessTimer.Change(Timeout.Infinite, Timeout.Infinite);
currentProcessTimer.Dispose();
currentProcessTimer = null;
}
cpuUsageCalculator = null;
UnhookEvents();
StepDiagram result = StepDiagram;
result.PostProcess();
StepDiagram = null;
return(result);
}