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Date Posted: 18:05:59 08/19/05 Fri
Author: Mark Forte
Subject: Re: Limit to Zooming
In reply to: John Weston 's message, "Limit to Zooming" on 01:19:58 10/07/04 Thu

>I was wondering if anyone has got around the zoom
>limitation within the envision library. Currently,
>when I zoom in on a large image, sooner or later I
>just zoom into a black screen. I think I have tracked
>this to the image size using stretchDibits in the
>transformation. The function is not failing, but the
>retuned image is black.
>I have read previous postings on this forum regarding
>the large amount of memory taken when zooming images,
>but have yet to know how to get around this without
>limiting the zoom.
>Has anyone seen this and have a possible workaround.
>Thanks in advance
>John Weston.

My users are also seeing this undesired behavior. Has anyone come up with a solution? I wouldn't mind limiting the zoom percentage, but how do I know what the limit is before the image goes black? It seems to depend on both the picture size and the size of the component...

Thanks in advance,
Mark Forte
email: mforte at the domain below
Hansen Quality / Fidelity
hanqual dot com

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