How do I get a steam avatar with OnlineSubsystemSteam

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Worked great for us. We did add a parameter passed in, FString UserSteamID, where we collect all the steam ID’s of joined players as hexadecimal strings. When each player joins they send a message to the server to add their steam ID hex string to the Player State on the server.

Then we can convert back and forth…

CSteamID USteamBridge::SteamIDStringToCSteamID(FString s)
{
	uint64 i64 = 0;
	int convCount = sscanf_s( TCHAR_TO_ANSI(*s), "%llu", &i64 );
	if (convCount == 0)
	{
		UE_LOG(DSS_STEAM, Log, TEXT("SteamIDStringToCSteamID - invalid input string %s"), *s);
		return CSteamID((uint64)0);
	}
	return CSteamID(i64);
}

FString USteamBridge::CSteamIDToString(CSteamID i)
{
	sprintf_s( steamidbuf, sizeof(steamidbuf), "%llu", i.ConvertToUint64() );
	return FString(steamidbuf);
}

Then we can get the avatar of any player.

(top of the function)

UTexture2D * USteamBridge::GetSteamAvatar(FString PlayerSteamID) {
	uint32 Width;
	uint32 Height;

	if (SteamAPI_IsSteamRunning())
	{
		CSteamID PlayerRawID = SteamIDStringToCSteamID(PlayerSteamID);
		//Getting the PictureID from the SteamAPI and getting the Size with the ID
		int Picture = SteamFriends()->GetMediumFriendAvatar(PlayerRawID);