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Re: Problems with Retain on OS X Mavericks [message #87023 is a reply to message #87022]

Sun, 22 December 2013 09:24

David Fanning
Messages: 11724
Registered: August 2001

Senior Member

Matthew Argall writes:

> After writing the initial post, it occurred to me your routines must work for a reason... However, before I updated to Mavericks (from Snow Leopard), I did not ever have to set RETAIN=2.

The default in IDL is to ask the window manager to take care of what is
technically called the "backing store", or the repair of windows. Some
window managers (Windows, for example) are happy to do this, but it is
not something they MUST do by default. Almost all UNIX window managers
ignore the request unless special care is taken to configure them to do
so.

I don't have a Mac, so I don't know. Maybe with the update Apple now
configures the window manager to act more like other UNIX window
managers.

In any case, IDL can easily do the job itself. It just has to be told to
do so. This is trivially easy with Coyote Graphics. Just open graphics
windows with cgDisplay instead of Window and you are set. :-)

Cheers,

David
--
David Fanning, Ph.D.
Fanning Software Consulting, Inc.
Coyote's Guide to IDL Programming: http://www.idlcoyote.com/
Sepore ma de ni thue. ("Perhaps thou speakest truth.")

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[Message index]

		Problems with Retain on OS X Mavericks By: Matthew Argall on Sat, 21 December 2013 10:58
		Re: Problems with Retain on OS X Mavericks By: David Fanning on Sat, 21 December 2013 14:41
		Re: Problems with Retain on OS X Mavericks By: Matthew Argall on Sun, 22 December 2013 08:59
		Re: Problems with Retain on OS X Mavericks By: David Fanning on Sun, 22 December 2013 09:24

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