using System.Runtime.InteropServices; namespace Steamworks; [StructLayout(LayoutKind.Sequential, Pack = 8)] [CallbackIdentity(507)] public struct LobbyChatMsg_t { public const int k_iCallback = 507; public ulong m_ulSteamIDLobby; public ulong m_ulSteamIDUser; public byte m_eChatEntryType; public uint m_iChatID; }