A number uniquely identifying this touch point. It must correlate to exactly one previous touch_start event.
The x coordinate of the touch point.
The y coordinate of the touch point.
Pressure data of the touch point, from 0.0 to 1.0, or NaN if no data is available.
a bit-mask representing the state of the modifier keys (e.g. Control, Shift and Alt).
a new #GstEvent
Create a new navigation event for a moved touch point.