I'm writing a PB add-in in .NET and one of the items I need is the trace value at a cursor. To example a bit more; The user creates two or more cursors and then from two comboboxes (in a docked window) selects the cursors of interest. The add-in then calculates the differences between the two cursors (time difference, value difference); I plan to use PI summaries2 to calculate the statistics between the time range as a later enhancement. However, the first problem I need to solve is how to get the trace value at a cursor/time. I would rather not use a PISDK call to get the value as this will not work for datasets.