XP-Bar modifications with problems (newbie)

[Alderway]

Hi,

I'm new to EQ2 and wanted to get deeper into the interface by changing and perhaps even a bit of understanding. I know, it will not be easy. So I parsed several XP-bar mods and tried to create my own.

But I have still problems which I can't solve, because I don't understand some of the things behind.

1st: What is the precise difference between Packsize absolut and prop?

2nd: How does this thing with layers work? First declared is most top or the
other way around? How does it work with Page within page-object?
One of my current problems is, that the tooltip for the XP-bar doesn't
work but for the AA and Tradeskill bars.
3rd: The values of objects like .Left and .Width seems not to correspond
with the values needed on the screen. With wich values I can deal or do
I have to usae special commands? The reason: I put a calculation in the
OnShow and OnSize part of the XP-Bar. The Result was not what I
expected. It was more or less the same like now without
event-calculation.
4th: When does the OnShow event fire? Also after loading? Does a OnLoad
event exist? The calc above worked only after resizing.

So, that should be enough for the first posting. Wish you a good stumble into the NEW YEAR.