Constant lv2_sys::LV2UI_Request_Value_Status_LV2UI_REQUEST_VALUE_ERR_UNSUPPORTED

pub const LV2UI_Request_Value_Status_LV2UI_REQUEST_VALUE_ERR_UNSUPPORTED: LV2UI_Request_Value_Status = 3;

Unsupported parameter.

The host knows about this parameter, but does not support requesting a new value for it from the user. This is likely because the host does not have UI support for choosing a value with the appropriate type.