example in FFI manual not worked

Hi Yuriy,

I guess you subclassed your class from the (wrong) class "ExternalStructure" but in the
guide it is "FFIExternalStructure".

Make sure to accept in the browser:

   FFIExternalStructure subclass: #MyStructure
     instanceVariableNames: ''
     classVariableNames: ''
     package: 'FFIDemo'

instead of

   ExternalStructure subclass: #MyStructure
     instanceVariableNames: ''
     classVariableNames: ''
     package: 'FFIDemo'

to make the class MyStructure a subclass of FFIExternalStructure instead of ExternalStructure.

Hope this helps!

Bye
Torsten