CSteamAPIContext.cs

        internal static bool Init()
        {
            HSteamUser hSteamUser = SteamAPI.GetHSteamUser();
            HSteamPipe hSteamPipe = SteamAPI.GetHSteamPipe();
            if (hSteamPipe == (HSteamPipe)0) { return false; }

            using (var pchVersionString = new InteropHelp.UTF8StringHandle(Constants.STEAMCLIENT_INTERFACE_VERSION))
            {
                m_pSteamClient = NativeMethods.SteamInternal_CreateInterface(pchVersionString);
            }

            if (m_pSteamClient == IntPtr.Zero) { return false; }

            m_pSteamUser = SteamClient.GetISteamUser(hSteamUser, hSteamPipe, Constants.STEAMUSER_INTERFACE_VERSION);
            if (m_pSteamUser == IntPtr.Zero) { return false; }

            m_pSteamFriends = SteamClient.GetISteamFriends(hSteamUser, hSteamPipe, Constants.STEAMFRIENDS_INTERFACE_VERSION);
            if (m_pSteamFriends == IntPtr.Zero) { return false; }

            m_pSteamUtils = SteamClient.GetISteamUtils(hSteamPipe, Constants.STEAMUTILS_INTERFACE_VERSION);
            if (m_pSteamUtils == IntPtr.Zero) { return false; }

            m_pSteamMatchmaking = SteamClient.GetISteamMatchmaking(hSteamUser, hSteamPipe, Constants.STEAMMATCHMAKING_INTERFACE_VERSION);
            if (m_pSteamMatchmaking == IntPtr.Zero) { return false; }

            m_pSteamMatchmakingServers = SteamClient.GetISteamMatchmakingServers(hSteamUser, hSteamPipe, Constants.STEAMMATCHMAKINGSERVERS_INTERFACE_VERSION);
            if (m_pSteamMatchmakingServers == IntPtr.Zero) { return false; }

            m_pSteamUserStats = SteamClient.GetISteamUserStats(hSteamUser, hSteamPipe, Constants.STEAMUSERSTATS_INTERFACE_VERSION);
            if (m_pSteamUserStats == IntPtr.Zero) { return false; }

            m_pSteamApps = SteamClient.GetISteamApps(hSteamUser, hSteamPipe, Constants.STEAMAPPS_INTERFACE_VERSION);
            if (m_pSteamApps == IntPtr.Zero) { return false; }

            m_pSteamNetworking = SteamClient.GetISteamNetworking(hSteamUser, hSteamPipe, Constants.STEAMNETWORKING_INTERFACE_VERSION);
            if (m_pSteamNetworking == IntPtr.Zero) { return false; }

            m_pSteamRemoteStorage = SteamClient.GetISteamRemoteStorage(hSteamUser, hSteamPipe, Constants.STEAMREMOTESTORAGE_INTERFACE_VERSION);
            if (m_pSteamRemoteStorage == IntPtr.Zero) { return false; }

            m_pSteamScreenshots = SteamClient.GetISteamScreenshots(hSteamUser, hSteamPipe, Constants.STEAMSCREENSHOTS_INTERFACE_VERSION);
            if (m_pSteamScreenshots == IntPtr.Zero) { return false; }

            // Outdated interface
            //m_pSteamHTTP = SteamClient.GetISteamHTTP(hSteamUser, hSteamPipe, Constants.STEAMHTTP_INTERFACE_VERSION);
            //if (m_pSteamHTTP == IntPtr.Zero) { return false; }

            // Outdated interface
            //m_pController = SteamClient.GetISteamController(hSteamUser, hSteamPipe, Constants.STEAMCONTROLLER_INTERFACE_VERSION);
            //if (m_pController == IntPtr.Zero) { return false; }

            // Outdated interface
            //m_pSteamUGC = SteamClient.GetISteamUGC(hSteamUser, hSteamPipe, Constants.STEAMUGC_INTERFACE_VERSION);
            //if (m_pSteamUGC == IntPtr.Zero) { return false; }

            m_pSteamAppList = SteamClient.GetISteamAppList(hSteamUser, hSteamPipe, Constants.STEAMAPPLIST_INTERFACE_VERSION);
            if (m_pSteamAppList == IntPtr.Zero) { return false; }

            // This one fails for unknown reason
            //m_pSteamMusic = SteamClient.GetISteamMusic(hSteamUser, hSteamPipe, Constants.STEAMMUSIC_INTERFACE_VERSION);
            //if (m_pSteamMusic == IntPtr.Zero) { return false; }

            m_pSteamMusicRemote = SteamClient.GetISteamMusicRemote(hSteamUser, hSteamPipe, Constants.STEAMMUSICREMOTE_INTERFACE_VERSION);
            if (m_pSteamMusicRemote == IntPtr.Zero) { return false; }

            // Outdated interface
            //m_pSteamHTMLSurface = SteamClient.GetISteamHTMLSurface(hSteamUser, hSteamPipe, Constants.STEAMHTMLSURFACE_INTERFACE_VERSION);
            //if (m_pSteamHTMLSurface == IntPtr.Zero) { return false; }

            // Outdated interface
            //m_pSteamInventory = SteamClient.GetISteamInventory(hSteamUser, hSteamPipe, Constants.STEAMINVENTORY_INTERFACE_VERSION);
            //if (m_pSteamInventory == IntPtr.Zero) { return false; }

            // This one fails for unknown reason
            //m_pSteamVideo = SteamClient.GetISteamVideo(hSteamUser, hSteamPipe, Constants.STEAMVIDEO_INTERFACE_VERSION);
            //if (m_pSteamVideo == IntPtr.Zero) { return false; }

            // Crashes unity for unknown reason
            //m_pSteamParentalSettings = SteamClient.GetISteamParentalSettings(hSteamUser, hSteamPipe, Constants.STEAMPARENTALSETTINGS_INTERFACE_VERSION);
            //if (m_pSteamParentalSettings == IntPtr.Zero) { return false; }

            return true;
        }