touch_down

Description:

public void touch_down (uint stream, uint slot, double x, double y)

Notify about a new touch down event.

The `(x, y)` position represents the new touch point position in the streams logical coordinate space.

May only be called on a remote desktop session with `XDP_DEVICE_TOUCHSCREEN` access.

this	a [class@Session]
stream	the node ID of the pipewire stream the position is relative to
slot	touch slot where the touch point appeared
x	new X position
y	new Y position