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January 1997
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1997.01.09 16:16 "Re: libtiff to write EPS preview", by Phillip Crews
At 17:25 1/8/97 -0500, Chuck Packard wrote: >How can one find out how many bytes were written out for a TIFF image? >If I use no compression, then it is just width * height * 3 + H, were H >is some amount of TIFF header (tag) information. Anyone know what H is? > >What if I do use packbits compression; how long is the file then? I >guess what would be great is some function I can call after TIFFClose >that tells me how many bytes were written out. When I looked at the code >for PackBitsEncodeI do not see any magical global keeping track of how >many bytes are being written out with each encoded strip. So I do not >see an easy modification to get at this information. Anyone ever look >into this? Anyone else need this? How about: (file size after writing TIFF) - (file size before adding TIFF) If the file is closed and re-opened, you could use O/S calls to retrieve the file size (i.e., _stat); if the file is open, you can use _seek on the fd. Phillip -- Kind regards, Phillip ** Please contact support@cerious.com for product support. ** ** Please join the ThumbsPlus mailing list! Just mail a message ** with the contents "join thumbs" to listserver@thumbsplus.com /// Cerious Software, Inc. Try ThumbsPlus, the BEST for Windows // http://www.cerious.com Version 3.0e1-S - current shareware // ftp://ftp.cerious.com released 12/2/96 ///