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(mgp-users 00027) graphic tablet experiecne ?

does anyone have experience with graphic tablets -- particularly with
cheap serial units ?

i have tried one (a kid's model, "Wacky pad") and it seems not to talk
any protocol recognized by moused. This one seems to talk at 9600,
emits 5-byte strings with some strange absolute coordinate encoding
which i managed to translate into a reasonable x,y format with a little
bit of debugging, but i am wondering if there is some standard about
this.

[why i am looking at this ? to make use of the 'jotting' mode in mgp!]

	thanks
	luigi
-----------------------------+--------------------------------------
Luigi Rizzo                  |  Dip. di Ingegneria dell'Informazione
email: luigi@iet.unipi.it    |  Universita' di Pisa
tel: +39-50-568533           |  via Diotisalvi 2, 56126 PISA (Italy)
fax: +39-50-568522           |  http://www.iet.unipi.it/~luigi/
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