I try to send a message when a user make a trade, but I can't find the way. I put SendMessage in TradeOfferUserHandle.cs:
public override void OnTradeInit()
{
SendChatMessage("Hi User, Trade start!");
}
But don't work. Any solution? I use C# SteamBot: https://github.com/Jessecar96/SteamBot
Solved. The problem is that I need overwrite SimpleUserHandle.cs, not TradeOfferUserHandle.cs