Load the current party the current ovrUserHandle is in. The returned ovrPartyHandle will then contain information about other users in the party and invited users.A message with type ovrMessage_Party_GetCurrent will be generated in response.First call ovr_Message_IsError() to check if an error occurred.If no error occurred, the message will contain a payload of type ovrPartyHandle. Extract the payload from the message handle with ovr_Message_GetParty().