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 specified 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 specific 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.