While I was working on the engine update, a friend pointed out that some of the app behaviour in Windows was not as expected. So in a brief detour I have fixed a number of the issues and updated the downloadable demo. The engine resource handling update is still in progress.
Anyway, the fixes in the latest version are:
The standard Windows keyboard shortcuts for positioning of a window (Win+cursor key) now work.
The app no longer exits if it is minimised.
Handling of window movement and re-sizing in general should be more stable.
Alt+F4 closes the app.
Alt+space now correctly brings up the window menu.
General mouse handling is more consistent.