I hope this is the right place! Yes, thanks, that worked okay but much better I found was to put the loop in a thread and then it runs in the background whilst I do all the pretty stuff.
I have a DOH moment. If you write a tight loop under a button (say) you cannot click the button because the system rupts will not give you time ( try a while true loop for example). There is a Borland 'command' to force the loop to test for rupts such as mouse click or keyboard, but I have...
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