windowscodecs: Fix the seeking in stream region streams.

[Vincent Povirk]

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://www.winehq.org/pipermail/wine-patches/attachments/20100911/250ed10f/attachment.htm>
-------------- next part --------------
An embedded and charset-unspecified text was scrubbed...
Name: 0001-windowscodecs-Fix-the-seeking-in-stream-region-streams.txt
URL: <http://www.winehq.org/pipermail/wine-patches/attachments/20100911/250ed10f/attachment.txt>