Event.getSourceDevice

This function returns the hardware (slave) #GdkDevice that has triggered the event, falling back to the virtual (master) device (as in [gdk.event.Event.getDevice]) if the event wasn’t caused by interaction with a hardware device. This may happen for example in synthesized crossing events after a #GdkWindow updates its geometry or a grab is acquired/released.

If the event does not contain a device field, this function will return null.