Access additional Steam features in the Windows WebView2 and Linux CEF exporter. Requires official Steamworks addon also to be added.
Maybe I don't understand the logic of "networking". Do I understand correctly that by entering the steam ID in the first column and the message in the second, after clicking on send in the steam, a message should be sent on my behalf to this user? There were no mistakes. Nothing just happened, even in the source code itself.
This does not send a 'chat' message to a user, this is for game p2p networking as described here: partner.steamgames.com/doc/api/ISteamnetworkingMessages