Create new Windows-GUID as std::string

gistfile1.cpp

std::string createGUIDString(void) {
  GUID guid;
  HRESULT hCreateGuid = CoCreateGuid(&guid);
  std::stringstream strBuf;
  strBuf << std::hex << std::setw(8) << std::setfill('0')
    << guid.Data1 << "-" << guid.Data2 << "-" << guid.Data3 << "-";
  for (int i = 0; i < 2; ++i)
    strBuf << std::hex << std::setw(2) << std::setfill('0') << short(guid.Data4[i]);
  strBuf << "-";
  for (int i = 2; i < 8; ++i)
    strBuf << std::hex << std::setw(2) << std::setfill('0') << short(guid.Data4[i]);
  return strBuf.str();
}