The XGetDeviceDontPropagateList request queries the list of events that should not be propagated to ancestors of the event window. XGetDeviceDontPropagateList can generate a BadClass or BadWindow error. An invalid device was specified. The speci fied device does not exist or has not been opened by this client via XOpenInputDevice. This error may also occur if some other client has caused the specified device to become the X keyboard or X pointer device via the XChangeKeyboardDevice or XChangePointerDevice requests.
Some numeric value falls outside the range of values accepted by the request.
Unless a spe cific range is specified for an argument, the full range defined by the argument's type is accepted. Any argument defined as a set of alternatives can generate this error. An invalid event class was specified.