问题
Is there a standard way to serialize and deserialize a COM VARIANT, e.g. to/from a stream?
Haven't found any in MSDN, an I'm a little surprised now.
回答1:
You can do this using the the VARIANT_UserMarshal function.
General information on this function (and similar ones for other OLE Automation types) is available here: Marshaling OLE Data Types and here: The type_UserMarshal Function
来源：https://stackoverflow.com/questions/22959103/serialize-com-variant-to-blob-or-istream