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Slow exposure events [message #37575] Fri, 09 January 2004 06:33
Nuno Oliveira is currently offline  Nuno Oliveira
Messages: 75
Registered: October 2003
Member
Hi.

(Let's see if I can use the correct terms)



I've seen that IDL doesn't refresh windows. If I have an application and
simply minimize e get the window again the image on the window is lost. This
is particularly annoying when you have a window (made by widget draw) that
has a size greater then the window you have defined and you use a scroll
bar. When you go down on your image you don't see anything at all. This can
be avoided by using the keyword EXPOSURE EVENTS on the widget draw. But this
makes the application slower.



Two questions:



This happens only in the Unix operating system? (I work with both Window and
Unix and this, as far as I've seen, doesn't happen in Windows) Anyone knows
why?



Is there any solution that not the keyword EXPOSURE EVENTS?



Cheers,



Nuno.

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