On Mon, Oct 23, 2017 at 11:46 PM, Jan Cada <j...@cada.cz> wrote: > Hi, > > I would like to connect fingerprint reader to pharo - so far I am able to > use C library to connect to it using UFFI, > however the problem is that I can wait for fingerprint indefinitely ( > blocking call to library) or register call-back for moment when fingerprint > is available. > The registration function returns immediately, so it is clear that the > callback will be called from another thread. > > Is such situation supported by UFFI ? > > Thanks for any tip, > > Jan >
Callbacks are supported. Here is an example... http://blog.openinworld.com/2016/09/pharo-libclang-ffi-part-4-ast-walking-with-visitors-callbacks/ @Todd, How did find working through this part? cheers -ben
