Session Settings in Blueprint Script

Development Programming & Scripting Multiplayer & Networking
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1

A have setup my game for Steam and can CreateSession in my blueprint Multiplayer Menu.

But… How do you then set attributes on the session.
Like here: https://docs.unrealengine.com/latest/INT/API/Runtime/OnlineSubsystem/FOnlineSessionSettings/index.html

I want to set a session name “Freds Game” and type of game, like PvP.
Then I could list to other players what session s of a type are available.

Extra Credit:
Also, how does one get the current session in a blueprint?

How does one get the Steam player name (gamer tag) and all that in a blueprint script?

Is the answer that this depth requires C++ code?

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I get success at creating the session, but I then do a Find Sessions and get back success but 0 session?

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Yes I set Max Results to 10

2

This can’t currently be done with the blueprint Create Session node. However, you could modify the existing version in the source (Take a look at CreateSessionCallbackProxy in UE4/Source/Runtime/Online/OnlineSubsystemUtils), or create your own version (best to use the existing one as a reference). I’m actually in the process of doing this myself as I’m typing this.

Ditto to getting current session details in blueprint, you’ll need to get into some C++ to do that, though not quite as tough as the first one:

IOnlineSessionPtr Sessions = IOnlineSubsystem::Get()->GetSessionInterface();

FOnlineSessionSettings* CurrentSettings = Sessions->GetSessionSettings(GameSessionName);

For the steam name, that one you’re good on. Here’s a good tutorial:

As for your trouble with find sessions, I couldn’t tell you what’s wrong without seeing exactly what you’re doing. My suggestion is to google “unreal engine steam blueprint tutorial”. There’s a REALLY good 2.5 hour long in-depth video out there on how to do it:

Good luck!

3

Take a look in UE4/Source/Runtime/Online/OnlineSubsystemUtils/Classes/DestroySessionCallbackProxy.h

Note the base class “UOnlineBlueprintCallProxyBase”.

Take a look through those classes; you should get a pretty good idea of what’s going on.

4

I can’t figure out where blueprint nodes are implemented in the core UE4.

For example I search for DestroySession or Destroy Session and only find the functions in the core code, none of which appear to have blueprint declarations in the .h files.

Where do I find them?

5

if you want to use those options, use this plugin, he implements all this and much more, like voice comms, friend invite, etc etc.

6

Yup, found it right after I asked the question. :frowning:
Thanks.