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Generating EXPOSE events, in direct graphics with RETAIN=2 [message #9537] Mon, 07 July 1997 00:00
david[1] is currently offline  david[1]
Messages: 1
Registered: July 1997
Junior Member
I have an application that puts up a couple of windows at the same time,
and I would like to be able to load a window-specific color table for each
window, when it becomes the top or 'exposed' window. The new EXPOSE_EVENTS
keyword to WIDGET_BASE does exactly what I want, but it forces you to set the
RETAIN keyword to 0, forcing you to do the window update - which would be OK,
except I am using direct graphics, and the data I'm displaying takes a couple
of seconds to generate and display - long enough to be annoying. The
KBRD_FOCUS_EVENTS keyword to WIDGET_BASE generates an event everytime the
cursor crosses the window frame, even if the window has not been exposed,
so this doesn't work either. So I was wondering if there was another way to
duplicate the EXPOSE_EVENTS keyword of the WIDGET_BASE, but with the ability
to set the RETAIN keyword to 2?

Thanks -

--

David Cooke
Emory University School of Medicine, Atlanta, GA
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