Returns the vendor ID of this device, or NULL if this information couldn't
be obtained. This ID is retrieved from the device, and is thus constant for
it.
This function, together with Device.getProductId, can be used to eg.
compose gtk.Settings paths to store settings for this device.
Returns the vendor ID of this device, or NULL if this information couldn't be obtained. This ID is retrieved from the device, and is thus constant for it.
This function, together with Device.getProductId, can be used to eg. compose gtk.Settings paths to store settings for this device.