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Re: CW_ZOOM problem [message #56704]

Sat, 10 November 2007 17:43

David Fanning
Messages: 11724
Registered: August 2001

Senior Member

kerber80@gmail.com writes:

> My program open image file (user pick which one from menu)
> for menu i have events and processing it in event handler
>
> only after it i have image size
> but ZOOM widget realized before it... So how "re-build" widget for
> image size ?

Ah, well, the author of this program didn't anticipate
this kind of situation. :-)

Here is my suggestion. Modify the ZOOM_SET_VALUE procedure
to allow you to pass not just a new image, but new draw
widget sizes, too. (You will have to make the "value"
a structure, probably.) Then, just modify the draw widgets
(you can find their IDs in the state structure) with your
new values.

Or, you could write your own code as a widget object
and do it right. :-)

Cheers,

David

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

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[Message index]

		Re: CW_ZOOM problem By: David Fanning on Sat, 10 November 2007 17:43
		Re: CW_ZOOM problem By: kerber80 on Sat, 10 November 2007 15:56
		Re: CW_ZOOM problem By: David Fanning on Sat, 10 November 2007 13:31
		Re: CW_ZOOM problem By: Vince Hradil on Sat, 10 November 2007 13:29

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