Is there something like a generic int value holder then?
>
> I think in that case you need to pass an instance of FFIExternalValueHolder.
>
> > Hi again,
> >
> > Does anyone know what is the state of return by reference in FFI?
> > Example:
> > glGetAttribute: attr into: value
> > <primitive: #primitiveNativeCall module: #NativeBoostPlugin error:
> > errorCode>
> > ^ self nbCall: #( int SDL_GL_GetAttribute(SDL_GLattr attr, int
> > *value) )
> >
> > On my image (50666) it does nothing on value yet (if nil, remains nil, if
> > SmallInteger 0, remains 0).
> > (SDL2 glGetAttribute: 6 into: value) should return 16.
> > I've seen NBOpenGL put "out" before value in method header, should it
> > matter? (does not make it work though)
> > Last but not least, should we attach '*' to the type or variable for FFI
> > to understand it is a pointer?
> >
> > Cheers,
> > Thibault Raffaillac
