Vertical line annotations

Hello,

I have a problem reading the position of the vertical line annotations. The function “getX1” returns type double (0 – 1) or date depending on whether the annotation has not changed its position. I found out from the documentation that the type returned depends on the coordinateMode. I set it to absolute. This change had no effect, unlike in library written in Java. Is it possible to set the default type? Can I ask for any guidance needed to solve the problem? The version of the library I am using is 4.4.2.5871.

Thanks in advance!
Paweł