[Lazarus] TPairSplitter, Callback when splitter moved

[Jürgen Hestermann]

Yet another TPairSplitter question:

I can ensure that the ratio between upper and lower panel is a certain ratio by adding an OnResize method like this:

PairSplitter1.Position    := Round(PairSplitter1.Height*SplitterRatio);

with SplitterRatio beeing something between 0 and 1 (I used 0.5 to make both (nearly) the same size).

But if the user now changes the ratio manually I need to update SplitterRatio.
What event is driven when the splitter is moved manually so that I can recalculate SplitterRatio?