Dirty/Changed

Does the TWPViewPDF class carry a Dirty or Changed state that can be queried?

I could not find a published property. Perhaps a Command() to get state?

Thanks.

Follow up.

I have looked at:

i := WPViewPDF1.Command(COMPDF_GetModified)

and

i := WPViewPDF1.Command(COMPDF_Modified);

but neither returns a value if you simply add a rectangle, or circle.

If I move the same rectangle or circle, after adding it, I will then get a result from COMPDF_Modified command.