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Re: max # pixmaps in MSWin IDL 5.5? [message #31906 is a reply to message #31893]

Sun, 25 August 2002 10:55

David Fanning
Messages: 11724
Registered: August 2001

Senior Member

Craig Hamilton (someone@microsoft.com) writes:

> I want to allocate a lot of pixmaps using
> window,/pixmap,xsize=128,ysize=128,/free
>
> Is there a limit to the number of pixmaps using IDL 5.5
> under MSWindows 2000? I get an 'unable to create pixmap'
> error after !d.window reaches 364 (although this number varies).
>
> I have 768MB of RAM, so I am not running out of memory. So far
> in the docs, I have just found that it says you can create 'a large
> number' of pixmaps.

The reason for the hand-waving is that the number of pixmaps
you can create is a function of your graphics card and how
"smart" it is.

To get around this limitation, I use unmapped draw widgets
(wrapped up in an object, of course, for easy accessibility).
You can have a lot more of these kinds of windows than you
can have pixmaps, and they serve exactly the same function.

Cheers,

David

--
David W. Fanning, Ph.D.
Fanning Software Consulting, Inc.
Phone: 970-221-0438, E-mail: david@dfanning.com
Coyote's Guide to IDL Programming: http://www.dfanning.com/
Toll-Free IDL Book Orders: 1-888-461-0155

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[Message index]

		Re: max # pixmaps in MSWin IDL 5.5? By: Pavel A. Romashkin on Tue, 27 August 2002 13:15
		Re: max # pixmaps in MSWin IDL 5.5? By: David Fanning on Tue, 27 August 2002 09:14
		Re: max # pixmaps in MSWin IDL 5.5? By: Liam E. Gumley on Tue, 27 August 2002 07:40
		Re: max # pixmaps in MSWin IDL 5.5? By: David Fanning on Mon, 26 August 2002 18:09
		Re: max # pixmaps in MSWin IDL 5.5? By: Dick Jackson on Mon, 26 August 2002 15:42
		Re: max # pixmaps in MSWin IDL 5.5? By: David Fanning on Sun, 25 August 2002 10:55

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