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Beginner Question: Disappearing Info Structure/Motion Events [message #27588] Thu, 25 October 2001 14:48
sandy is currently offline  sandy
Messages: 6
Registered: July 1991
Junior Member
The Event Handler for my program can't seem to "check out" and replace
the Info Structure of event.top fast enough using the No_Copy technique
when Motion_Events is set in a draw widget. The Info Structure always
becomes undefined, so that the next time it's needed the program
crashes. Normally this occurs, not surprisingly, as soon as the mouse
is moved, when another motion event is generated

It works if I just don't set the No_Copy keyword, but this bothers me
because David Fanning says I should be concerned about memory management
(I got your new book two weeks ago). There must be something I'm not
understanding.

Thanks.

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