diff --git a/dll/dll/steam_friends.h b/dll/dll/steam_friends.h
index f9693aa9..d805427d 100644
--- a/dll/dll/steam_friends.h
+++ b/dll/dll/steam_friends.h
@@ -121,6 +121,8 @@ public:
     // the returned CSteamID can then be used by all the functions below to access details about the user
     CSteamID GetFriendByIndex( int iFriend, int iFriendFlags );
 
+    void GetFriendByIndex(CSteamID& res, int iFriend, int iFriendFlags );
+
     CSteamID GetFriendByIndex( int iFriend, EFriendFlags eFriendFlags );
 
     void GetFriendByIndex(CSteamID& result, int iFriend, EFriendFlags eFriendFlags);
@@ -206,6 +208,8 @@ public:
 
     CSteamID GetFriendFromSourceByIndex( CSteamID steamIDSource, int iFriend );
 
+    void GetFriendFromSourceByIndex(CSteamID& res, CSteamID steamIDSource, int iFriend);
+
 
     // returns true if the local user can see that steamIDUser is a member or in steamIDSource
     bool IsUserInSource( CSteamID steamIDUser, CSteamID steamIDSource );
@@ -292,12 +296,16 @@ public:
     // returns the steamID of the clan owner
     CSteamID GetClanOwner( CSteamID steamIDClan );
 
+    void GetClanOwner(CSteamID& res, CSteamID steamIDClan );
+
     // returns the number of officers in a clan (including the owner)
     int GetClanOfficerCount( CSteamID steamIDClan );
 
     // returns the steamID of a clan officer, by index, of range [0,GetClanOfficerCount)
     CSteamID GetClanOfficerByIndex( CSteamID steamIDClan, int iOfficer );
 
+    void GetClanOfficerByIndex(CSteamID& res, CSteamID steamIDClan, int iOfficer );
+
     // if current user is chat restricted, he can't send or receive any text/voice chat messages.
     // the user can't see custom avatars. But the user can be online and send/recv game invites.
     // a chat restricted user can't add friends or join any groups.
@@ -345,6 +353,8 @@ public:
     int GetCoplayFriendCount();
 
     CSteamID GetCoplayFriend( int iCoplayFriend );
+    
+    void GetCoplayFriend(CSteamID& res, int iCoplayFriend );
 
     int GetFriendCoplayTime( CSteamID steamIDFriend );
 
@@ -363,6 +373,8 @@ public:
     int GetClanChatMemberCount( CSteamID steamIDClan );
 
     CSteamID GetChatMemberByIndex( CSteamID steamIDClan, int iUser );
+    
+    void GetChatMemberByIndex(CSteamID& res, CSteamID steamIDClan, int iUser );
 
     bool SendClanChatMessage( CSteamID steamIDClanChat, const char *pchText );
 
diff --git a/dll/dll/steam_matchmaking.h b/dll/dll/steam_matchmaking.h
index d206a4b3..4b00dc3d 100644
--- a/dll/dll/steam_matchmaking.h
+++ b/dll/dll/steam_matchmaking.h
@@ -217,6 +217,8 @@ public:
     // the returned CSteamID::IsValid() will be false if iLobby is out of range
     CSteamID GetLobbyByIndex( int iLobby );
 
+    void GetLobbyByIndex(CSteamID& res, int iLobby );
+
 
     // Create a lobby on the Steam servers.
     // If private, then the lobby will not be returned by any RequestLobbyList() call; the CSteamID
@@ -269,6 +271,8 @@ public:
     // note that the current user must be in a lobby to retrieve CSteamIDs of other users in that lobby
     CSteamID GetLobbyMemberByIndex( CSteamID steamIDLobby, int iMember );
 
+    void GetLobbyMemberByIndex(CSteamID& res, CSteamID steamIDLobby, int iMember );
+
 
     // Get data associated with this lobby
     // takes a simple key, and returns the string associated with it
@@ -359,6 +363,8 @@ public:
     // it is possible (bur rare) to join a lobby just as the owner is leaving, thus entering a lobby with self as the owner
     CSteamID GetLobbyOwner( CSteamID steamIDLobby );
 
+    void GetLobbyOwner(CSteamID& res, CSteamID steamIDLobby );
+
     // asks the Steam servers for a list of lobbies that friends are in
     // returns results by posting one RequestFriendsLobbiesResponse_t callback per friend/lobby pair
     // if no friends are in lobbies, RequestFriendsLobbiesResponse_t will be posted but with 0 results
diff --git a/dll/steam_friends.cpp b/dll/steam_friends.cpp
index 9639c08e..ad823e18 100644
--- a/dll/steam_friends.cpp
+++ b/dll/steam_friends.cpp
@@ -277,6 +277,13 @@ CSteamID Steam_Friends::GetFriendByIndex( int iFriend, int iFriendFlags )
     return id;
 }
 
+void Steam_Friends::GetFriendByIndex(CSteamID& res, int iFriend, int iFriendFlags )
+{
+	PRINT_DEBUG_GNU_WIN();
+    std::lock_guard<std::recursive_mutex> lock(global_mutex);
+	res = GetFriendByIndex(iFriend, iFriendFlags );
+}
+
 CSteamID Steam_Friends::GetFriendByIndex( int iFriend, EFriendFlags eFriendFlags )
 {
 	PRINT_DEBUG("old");
@@ -289,7 +296,7 @@ void Steam_Friends::GetFriendByIndex(CSteamID& result, int iFriend, EFriendFlags
 {
 	PRINT_DEBUG_GNU_WIN();
     std::lock_guard<std::recursive_mutex> lock(global_mutex);
-	result = GetFriendByIndex(iFriend, (int)eFriendFlags );
+	result = GetFriendByIndex(iFriend, eFriendFlags );
 }
 
 
@@ -570,6 +577,13 @@ CSteamID Steam_Friends::GetFriendFromSourceByIndex( CSteamID steamIDSource, int
     return k_steamIDNil;
 }
 
+void Steam_Friends::GetFriendFromSourceByIndex( CSteamID& res, CSteamID steamIDSource, int iFriend )
+{
+    PRINT_DEBUG_GNU_WIN();
+    std::lock_guard<std::recursive_mutex> lock(global_mutex);
+    res = GetFriendFromSourceByIndex( steamIDSource, iFriend );
+}
+
 
 // returns true if the local user can see that steamIDUser is a member or in steamIDSource
 bool Steam_Friends::IsUserInSource( CSteamID steamIDUser, CSteamID steamIDSource )
@@ -769,6 +783,13 @@ CSteamID Steam_Friends::GetClanOwner( CSteamID steamIDClan )
     return k_steamIDNil;
 }
 
+void Steam_Friends::GetClanOwner(CSteamID& res, CSteamID steamIDClan )
+{
+    PRINT_DEBUG_GNU_WIN();
+    std::lock_guard<std::recursive_mutex> lock(global_mutex);
+    res = GetClanOwner( steamIDClan );
+}
+
 // returns the number of officers in a clan (including the owner)
 int Steam_Friends::GetClanOfficerCount( CSteamID steamIDClan )
 {
@@ -785,6 +806,13 @@ CSteamID Steam_Friends::GetClanOfficerByIndex( CSteamID steamIDClan, int iOffice
     return k_steamIDNil;
 }
 
+void Steam_Friends::GetClanOfficerByIndex(CSteamID& res, CSteamID steamIDClan, int iOfficer )
+{
+    PRINT_DEBUG_GNU_WIN();
+    std::lock_guard<std::recursive_mutex> lock(global_mutex);
+    res = GetClanOfficerByIndex( steamIDClan, iOfficer );
+}
+
 // if current user is chat restricted, he can't send or receive any text/voice chat messages.
 // the user can't see custom avatars. But the user can be online and send/recv game invites.
 // a chat restricted user can't add friends or join any groups.
@@ -965,6 +993,13 @@ CSteamID Steam_Friends::GetCoplayFriend( int iCoplayFriend )
     return k_steamIDNil;
 }
 
+void Steam_Friends::GetCoplayFriend( CSteamID& res, int iCoplayFriend )
+{
+    PRINT_DEBUG_GNU_WIN();
+    std::lock_guard<std::recursive_mutex> lock(global_mutex);
+    res = GetCoplayFriend( iCoplayFriend );
+}
+
 int Steam_Friends::GetFriendCoplayTime( CSteamID steamIDFriend )
 {
     PRINT_DEBUG_TODO();
@@ -1017,6 +1052,13 @@ CSteamID Steam_Friends::GetChatMemberByIndex( CSteamID steamIDClan, int iUser )
     return k_steamIDNil;
 }
 
+void Steam_Friends::GetChatMemberByIndex(CSteamID& res, CSteamID steamIDClan, int iUser )
+{
+    PRINT_DEBUG_GNU_WIN();
+    std::lock_guard<std::recursive_mutex> lock(global_mutex);
+    res = GetChatMemberByIndex( steamIDClan, iUser );
+}
+
 bool Steam_Friends::SendClanChatMessage( CSteamID steamIDClanChat, const char *pchText )
 {
     PRINT_DEBUG_TODO();
diff --git a/dll/steam_matchmaking.cpp b/dll/steam_matchmaking.cpp
index f22d0768..735c431b 100644
--- a/dll/steam_matchmaking.cpp
+++ b/dll/steam_matchmaking.cpp
@@ -605,6 +605,13 @@ CSteamID Steam_Matchmaking::GetLobbyByIndex( int iLobby )
     return id;
 }
 
+void Steam_Matchmaking::GetLobbyByIndex(CSteamID& res, int iLobby )
+{
+    PRINT_DEBUG_GNU_WIN();
+    std::lock_guard<std::recursive_mutex> lock(global_mutex);
+    res = GetLobbyByIndex(iLobby );
+}
+
 // Create a lobby on the Steam servers.
 // If private, then the lobby will not be returned by any RequestLobbyList() call; the CSteamID
 // of the lobby will need to be communicated via game channels or via InviteUserToLobby()
@@ -773,6 +780,13 @@ CSteamID Steam_Matchmaking::GetLobbyMemberByIndex( CSteamID steamIDLobby, int iM
     return id;
 }
 
+void Steam_Matchmaking::GetLobbyMemberByIndex(CSteamID&res, CSteamID steamIDLobby, int iMember )
+{
+    PRINT_DEBUG_GNU_WIN();
+    std::lock_guard<std::recursive_mutex> lock(global_mutex);
+    res = GetLobbyMemberByIndex( steamIDLobby, iMember );
+}
+
 
 // Get data associated with this lobby
 // takes a simple key, and returns the string associated with it
@@ -1175,6 +1189,13 @@ CSteamID Steam_Matchmaking::GetLobbyOwner( CSteamID steamIDLobby )
     return (uint64)lobby->owner();
 }
 
+void Steam_Matchmaking::GetLobbyOwner(CSteamID& res, CSteamID steamIDLobby )
+{
+    PRINT_DEBUG_GNU_WIN();
+    std::lock_guard<std::recursive_mutex> lock(global_mutex);
+    res = GetLobbyOwner( steamIDLobby );
+}
+
 // asks the Steam servers for a list of lobbies that friends are in
 // returns results by posting one RequestFriendsLobbiesResponse_t callback per friend/lobby pair
 // if no friends are in lobbies, RequestFriendsLobbiesResponse_t will be posted but with 0 results