LoadRunner GUID Creator

//https://www.northwaysolutions.com/loadrunner-guid-creator/

GUID()
{
    lr_guid_gen();
    lr_message("%s", lr_eval_string(""));
    lr_message("%s", lr_eval_string(""));
}

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

    GUID m_guid;
    char buf[50];
    char bufx[50];

    lr_load_dll ("ole32.dll");

    CoCreateGuid(&m_guid);

    sprintf (buf, "{%08lX-%04X-%04X-%02X%02X-%02X%02X%02X%02X%02X%02X}",
    m_guid.Data1, m_guid.Data2, m_guid.Data3,
    m_guid.Data4[0], m_guid.Data4[1], m_guid.Data4[2], m_guid.Data4[3],
    m_guid.Data4[4], m_guid.Data4[5], m_guid.Data4[6], m_guid.Data4[7]);

    sprintf (bufx, "{%08lx-%04x-%04x-%02x%02x-%02x%02x%02x%02x%02x%02x}",
    m_guid.Data1, m_guid.Data2, m_guid.Data3,
    m_guid.Data4[0], m_guid.Data4[1], m_guid.Data4[2], m_guid.Data4[3],
    m_guid.Data4[4], m_guid.Data4[5], m_guid.Data4[6], m_guid.Data4[7]);

    lr_save_string(buf, "lrGUID");
    lr_save_string(bufx, "lrGUIDx");

    lr_output_message(lr_eval_string(buf));
    lr_output_message(lr_eval_string(bufx));

    return 0;
}
Here is is an example of calling it in the Action file:

Action()
{
    lr_guid_gen();
    lr_message("%s", lr_eval_string(""));
    lr_message("%s", lr_eval_string(""));

    //--- Code here ------

    lr_guid_gen();
    lr_message("%s", lr_eval_string(""));
    lr_message("%s", lr_eval_string(""));

    return 0;
}


// alternative -----------------------------
// https://www.blazemeter.com/blog/how-i-learned-stop-worrying-about-loadrunner-and-start-loving-jmeter
  int GenerateGUID()
   {
       typedef struct _GUID
       {
           unsigned long Group1;
           unsigned short Group2;
           unsigned short Group3;
           unsigned char Group4[8];
       } GUID;
  
       GUID m_guid;
       char msgId[msgIdSize];
  
       lr_load_dll("ole32.dll");
  
       CoCreateGuid(&m_guid);
  
       sprintf(msgId, "%08lx-%04x-%04x-%02x%02x-%02x%02x%02x%02x%02x%02x",
           m_guid.Group1, m_guid.Group2, m_guid.Group3,
           m_guid.Group4[0], m_guid.Group4[1], m_guid.Group4[2], m_guid.Group4[3],
           m_guid.Group4[4], m_guid.Group4[5], m_guid.Group4[6], m_guid.Group4[7]);
  
       lr_save_string(msgId, "msgId");
  
       return 0;
   }