Libpng is available at:
http://www.cdrom.com/pub/png/pngcode.html
Libungif is identical to Giflib except that it does not include the questionable LZW compression that Unisys owns the rights to. Images generated with Libungif will be uncompressed (larger). Libungif 4.X is available at:
http://prtr-13.ucsc.edu/~badger/software/libungif.shtmlGiflib 4.X is available at:
http://prtr-13.ucsc.edu/~badger/software/giflib.shtml
Yes, it has been successfully built using MS Developer Studio on Windows NT. You must setup your own project for this.
Version 4.X of Giflib/Libungif requires you to add -lX11 to LIBS and all the makefiles. (Version 3.X did not require this.) You can get around this by building Giflib/Libungif without support for X11. (Try configure --help when building Giflib/Libungif for information on how to do this.)
The ifont2h utility allow you to embed a font within the application's executable so that you do not need to distribute the BDF font file with the executable.
You bet... Just email any patches to cknudsen@radix.net.