问如何使用mongocxx驱动程序将GUID作为bsoncxx::types::b_oid附加到文档中？

EN

typedef struct _GUID {
    unsigned long  Data1;
    unsigned short Data2;
    unsigned short Data3;
    unsigned char  Data4[ 8 ];
} GUID;

void insert_guid(std::string name, const GUID& guid)
{
    convertGUIDtoBinary( guid, binaryGuidData );    //Can't convert to 12 byte. It will convert to 16 byte length

    bsoncxx::types::b_oid oId;
    oId.value = bsoncxx::oid(binaryGuidData, 12);   //How to make it 12 byte length?

    bsoncxx::builder::basic::document  _builder;

    _builder.append(kvp(name, oId));

}