redj/sdk — comment on commit e691dd38e80799b1969f661e89970bf7bd8a6166
File: ecere/src/gui/controls/Stacker.ec line 291
By ecere:

IsDerived will return true if it is the same class... also we need syntactic sugar for this (dunno if we already have a mantis issue for it?)
Not sure what it would look like though... This is like a dynamic_cast(child) in C++ (ewww...)