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Date Posted: 08:32:15 07/01/02 Mon
Author: David Bracken
Subject: Manipulating Multipage Tiffs in streams

I need sample code on how to use streams with envision. Here is the problem:
I need to be able to rotate page three, then save the entire file with the changes to number three, without appending the new version of three to the end of the file. The pages must stay in order, and the old version of page three is replaced with the new version.
I have been able to achieve this through the imagescrollbox control, by assigning page three to a second(hidden) imagescrollbox control, and then looping through the original appending the images till i hit the one i have changed, and then appending the changed image from the second control, and continuing on through the original. this works fine unless the file is large, then it takes a long time to loop through the entire file.
I thought maybe doing it with streams might speed up the process, but am unsure how to do it.(I have not used streams very much at all). Any help or example code you could give me would be helpful, the demo project that came with it did not help me on this matter.

Thank you in advance for any help you can give.
David L. Bracken

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