On_Destroy's behavior has changed a bit.
Previously On_Destroy would only be called if the underlying connection was
still valid. This meant it was next to useless for Windows. However it
meant that in On_Destroy it was always safe to call methods on other Gnoga
objects.
This behavior has been changed and On_Destroy is called in all cases when a
Gnoga object is finalized. This means that if set on the window it can now
be used for clean up in singleton or multi_connect applications when the
connection has closed, something very useful. The connection should be
checked first in an On_Destroy if being set on a child element before
calling methods on other Gnoga objects.
Summary: On_Destroy is now a great place for clean up on loss of
connections when set on a Window.
David Botton
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