In this update is added new graphics formats for reading and writing 
photo images, new options to the image command and two commands to use 
fonts with the images.

	-listfont: it reads a file with the index of fonts and shows all 
fonts that can be used in the image commad.

	-destroyfont font_name: clean the memory used for a font that is 
read when you use put_string. It can be usefull if you don't have much memory
and don't use the font many times.


	The new format for images are these:

	GIF: now it's posible to write a image in gif format and read with
form option, that it wasn't fine.

	PPM: This format, now reads p4 and p5 formats and p6, of course.

	JPEG: This format is only for reading.

	PNM: for writing and reading.


	The new options for photo image are:


   imageName circle ?option value(s) ... ?
   imageName dashedline ?option value(s) ...?
   imageName hget x y
   imageName quantize n
   imageName line ?option value(s) ...?
   imageName rectangle ?option value(s) ...?
   imageName point ?option value(s) ...?
   imageName put_string ?option value(s) ...?
   imageName undo
 

	All of this have a file like a man for more information in the tar 
file.


	This patch changes some files of the version 4.2b1 of the tk for
doing new commands asociated to the images.
	
	To do this, you have to copy the file tk4.2b1img.patch.gz to the 
 principal tk directory, unzip and untar it.

	gzip -d tk4.2b1img.patch.tar.gz
	tar -xf tk4.2b1img.patch.tar
 

	Now you have to execute the next command in the tk directory.

	patch -p <tk4.2b1img.patch


	Now, the files had been changed. Only you have to do a configure
and make all.

	If you don't install the libraries, you have to do 
make install-fonts.

	For any questions mail to :

	lolo@pcsig22.etsimo.uniovi.es
	zz11425958@zeus.etsimo.uniovi.es