Returns the product 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. See gdk.device.Device.getVendorId for more information.
the product ID, or null
Returns the product 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. See gdk.device.Device.getVendorId for more information.