1994.02.11 15:27 "read/write file access", by Gaile G. Gordon

I need to open image files for read/write - for instance when you want to open a large file, modify a subset of the data, and close the file. The current libtiff supports "append" mode, but the claim in the documentation is that new data will be written as an additional "subfile" (tiff directory I assume), which is not the idea I'm after.

Has anyone else has addressed this problem already? At first glance I may be able to get away with simply resetting my directory to the first one after I open the file in append mode? But at second glance I don't think it's that easy.


Dr. Gaile Gordon
55 Walkers Brook Rd.
Reading, MA 01867
(617)942-2000 x2119