2005.06.21 09:17 "[Tiff] Tiff-Tags and Delphi7 / X and Y RESOLUTION / PHOTOMETRIC", by Matthias Lach

2005.07.21 03:16 "Re: [Tiff] Tiff-Tags and Delphi7 / X and Y RESOLUTION / PHOTOMETRIC", by Joris Van Damme

I wrote:

var
  FirstPageXReso: Single;
begin
  TIFFGetField(OpenTiff,TIFFTAG_XRESOLUTION,@FirstPageXReso);

TIFFSetField(tifbild, TIFFTAG_XRESOLUTION, FirstPageXReso);
  TIFFSetField(tifbild, TIFFTAG_YRESOLUTION, FirstPageYReso);

For setting, too, Single values will be required.

This information was wrong. See also

http://www.asmail.be/msg0055048683.html

Seems that we need Single to read the resolution tags with TIFFGetField, and a variable of type Double (as opposed to a direct value, or a variable of other type) to write with TIFFSetField.

Joris Van Damme
info@awaresystems.be
http://www.awaresystems.be/
Download your free TIFF tag viewer for windows here:
http://www.awaresystems.be/imaging/tiff/astifftagviewer.html