When a previously defined touch field (see Create/Define Touch Field) is pressed/released, and the reporting of the coordinates is switched on via Enable/Disable Reporting Touch-Coordinates, the press of a field is indicated by
K key_char ev_coord_x ev_coord_y [ACK]
and the release is reported as follows
k key_char ev_coord_x ev_coord_y [ACK]
key_char is the non-zero character assigned to the touch field previously defined and ev_coord_x / ev_coord_y is the coordinate where the event took place relative to the upper left corner of the corresponding touch field.
When more than one touch point are evaluated simultaneously, a point ID is inserted to the report for make
K key_char point_id ev_coord_x ev_coord_y [ACK]
as well as for break events:
k key_char point_id ev_coord_x ev_coord_y [ACK]
where point_id is a unique ID automatically assigned to the touch point (finger).
The number of concurrently reported touch points can be set by the command Set Number of Touch Points.
Note
See also:
Create/Define Touch Field
Enable/Disable Reporting Touch-Coordinates
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