touchscreen status

At the moment touchscreen soffer ot the same problem of touchscreen in
h2200.

I mean my touchscreen seems to be not fully linear.

At the moment I've wrote a very stupid routine that remove the first and
the last read (after pen-down and before pen up) because are spurious,
and a small dejitter routine.

The touchscreen is quite usable, but not so precise near to borders.
I think is premature to commit it..

Shawn, please try it and to hack it another bit it.

www.dpeddi.com/h4100/h4000_ts.c

After looking a bit in wince, I found that wince store in the registry
the 5 point coordinates, and on reset it rebuild calibration table.

By removing the 5 coordination point from registry, the touchscreen is
fully unusable, X axis is inverted and by drawing a straight line in
"note" it appear to be distorted.

Finally the touch.dll is one of the customized file by htc.
touch.dll seems to handle SSP initialization and perhaps some correction
table.

Eddi
Received on Sun Apr 18 2004 - 16:00:56 EDT