First, the offsets 0BE0 and 0BE4 are for actual flaps position not the handle.
But I found and used 0BDC offset to derive handle position so one problem solved :)
Now the angles. The values in CFG file are true angles not label values.
e.g. C172
flaps-position.0 = 0
flaps-position.1 = 12.7
flaps-position.2 = 25.3
flaps-position.3 = 38
and on the label in the cockpit there is 0, 10, 20, FULL. So I think I 'm not able to get label values that's why I request at least actual true angle from Simconnect but it seems for FS9 I will have to read CFG to obtain max flaps angle to do the calculations.
*************
Pete, do you know how to check if the plane has adjustable prop?
I use min and max prop beta angle in Simconnect. If they are different then it's adjustable but I found the offset only for actual beta angle (2418).