(Advanced) Close window opened in another thread

[mike_abc]

Hi,

I use an additional thread (thread_2) in my code to set a boolean variable which is periodically sampled and closes the main thread if true. The user interface for the thread_2 is a MsgBox which pops up at the beginning of the main thread - and should be pressed if the user wants to stop the main thread.

When the main thread finishes, thread_2 is killed (t.abort; t = Nothing), but the MsgBox does not disappear, so the user has to press the MsgBox anyway.

Question: How do I kill the msg box when the main thread finishes ?

I tried using a "normal" window (with a button) to do the same thing, but I couldn't close it from the main thread either.

Any ideas ?

Thanks.