SteamKit2.SteamFriends.LeaveChat C# (CSharp) Method

        public void LeaveChat( SteamID steamId )
        {
            SteamID chatId = steamId.ConvertToUInt64(); // copy the steamid so we don't modify it

            var leaveChat = new ClientMsg<MsgClientChatMemberInfo>();

            if ( chatId.IsClanAccount )
            {
                // this steamid is incorrect, so we'll fix it up
                chatId.AccountInstance = ( uint )SteamID.ChatInstanceFlags.Clan;
                chatId.AccountType = EAccountType.Chat;
            }

            leaveChat.Body.SteamIdChat = chatId;
            leaveChat.Body.Type = EChatInfoType.StateChange;

            leaveChat.Write( Client.SteamID.ConvertToUInt64() ); // ChatterActedOn
            leaveChat.Write( ( uint )EChatMemberStateChange.Left ); // StateChange
            leaveChat.Write( Client.SteamID.ConvertToUInt64() ); // ChatterActedBy

            Client.Send( leaveChat );
        }