informs the uicontext on closing that it will close. This gives the uicontext the time to exit all remaining threads properly before actually closing the application
informs the uicontext on closing that it will close. This gives the uicontext the time to exit all remaining threads properly before actually closing the application

ridoo/IlwisCore,ridoo/IlwisCore,ridoo/IlwisCore,ridoo/IlwisCore,ridoo/IlwisCore