2007.05.04 21:06 "[Tiff] TIFFSetField and float values", by mahmoudi wafa
to have libtiff configured you should added file header, le libtif.lib and add the path of the header file. if you haven't a message like "can't found tiffio.h"
so you didn't welle your libtiff.
to set Xresolution and Yresolution use
TIFFSetField (out, TIFFTAG_XRESOLUTION, 100.0);
TIFFSetField (out, TIFFTAG_YRESOLUTION ,100.0);
so as you can see the parameter is a float