Fixed libw32c.cc to work with the new viewport changes.

git-svn-id: https://crawl-ref.svn.sourceforge.net/svnroot/crawl-ref/trunk@1525 c06c8d41-db1a-0410-9941-cceddc491573

Created by  dshaligram  on June 4, 2007
UB73UGG2GEG6AL4T76UILFLTELH4Z5WN54UROLJD6RDR3JG77CXAC
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