2000.07.28 15:47 "Re: Extracting previews", by Steve Roy
The PackBitsDecode message appears when I call TIFFRGBAImageGet() to get the decoded raster data. My raster array is left filled with values 0xFFFFFFFF.
OK it's working now. Pardon my mistake but I had forgotten that most of my image was a white background, which explains the values I was seeing.
By ignoring the warnings and the error, my image displays fine. Should I worry about the messages?
Thanks to everybody who provided answers.