Marking an X Range on a CNiGraph?

[Miklos Kalman]

Hi,

I want to be able to mark an X range on the CNiGraph with the mouse. The range would be selected by graying out an X range on the graph. This range would then be used for math functions. Is there a way to select an X range, what event or flag would enable this?

Thanks,
Miklos Kalman

[Elton Wells]

You can use an annotation to highlight the range selection and two cursors to handle the selection. You can handle the OnCursorChange event on the graph to receive notification when the positions of the cursors change, then update the annotation accordingly to update the selection.

- Elton