`gre.mtrotate`

This event uses the value data field, which will be the difference in rotation between the average angle of all current touch points compared to the average angle of all the previous touch points. The value will be in degrees.

Data

uint32_t button uint32_t timestamp int16_t subtype int16_t x int16_t y int16_t z int16_t id int16_t spare float value float x_move float y_move int16_t npoints

Where:

- value
The rotation difference event

- npoints
The number of touch points used to generate this event