> > 1) Declare a class variable > > > > MyClass class>>initialize > > INT_PTR := FFIExternalValueHolder ofType: ?int?. > > as a larger explanation, this will create an anonymous subclass to keep ?int? > values, than later you can use as a type in your function call. Some people > would call this obscure, but is a good way of solving this problem (I > adopted it from old NB). > If you want to have a named class instead an anonymous class, you can just > subclass FFIExternalValueHolder: > > FFIExternalValueHolder subclass: #MyIntPtr > > and then implement typeDecl class method > > MyIntPtr class>>typeDecl > ^ ?int' > > and this will work as the anonymous class
The second option is definitely what I want. I am trying to expose a function returning several ints, as in SDL2>>mouseStateX: y: (excluding the possibility to return a Point). However I would rather not define my own int holder, can't we have generic holders to rely on? Thibault
