Project project = new Project();

// Creating TaskBaseline
Task task = project.RootTask.Children.Add("Task");
project.SetBaseline(BaselineType.Baseline);

// Display task baseline schedule
TaskBaseline baseline = task.Baselines.ToList()[0];
Console.WriteLine("Baseline duration is 1 day: {0}", baseline.Duration.ToString().Equals("1 day"));
Console.WriteLine("BaselineStart is same as Task Start: {0}", baseline.Start.Equals(task.Get(Tsk.Start)));
Console.WriteLine("BaselineFinish is same as Task Finish: {0}", baseline.Finish.Equals(task.Get(Tsk.Finish)));