It's recommended to call this function twice, the first time with [code-inline]pchValueBuffer[/code-inline] set to [b]NULL[/b] and [code-inline]punValueBufferSizeOut[/code-inline] set to zero to get the size required for the buffer for the subsequent call. …

See [api]ISteamInventory::DeserializeResult[/api] for expiration handling. If this is set [code-inline]pOutBuffer[/code-inline] to [b]NULL[/b] then [code-inline]punOutBufferSize[/code-inline] will be set to the buffer size required. …

Change history: [list] [*] [b]Version 2[/b] - Fixes returning the game name in XML. [/list] [section=SetUserStatsForGame]SetUserStatsForGame[/section] [code=http]POST https://partner.steam-api.com/ISteamUserStats/SetUserStatsForGame/v1/[/code] [table] [tr][th]Name[/th][th]Type[/th][th]Required[/th][th]Description[/th][/tr] [tr][td][b]key[/b][/td][td]string[/td][td]✔[/td][td]Steamworks Web API publisher authentication key.[/td][/tr] [tr][td][b]steamid[/b][/td][td]uint64[/td][td]✔[/td][td]SteamID of user[/td][/tr] [tr][td][b]appid[/b][/td][td]uint32[/td][td]✔[/td][td]appid of game[/td][/tr] [tr][td][b]count[/b][/td][td]uint32[/td][td]✔[/td][td]Number of stats and achievements to set a value for (name/value param pairs)[/td][/tr] [tr][td][b]name[0][/b][/td][td]string[/td][td]✔[/td][td]Name of stat or achievement to set[/td][/tr] [tr][td][b]value[0][/b][/td][td]uint32[/td][td]✔[/td][td]Value to set[/td][/tr] [/table] Sets a stat for the specified user for the game. …

[section]Overview[/section] This section describes the general workflow and settings necessary for releasing your application on additional operating systems. Steam provides support for Windows, macOS, and Linux (SteamOS). …

[b]NOTE:[/b] Don't check the boxes under [b]Supported Operating Systems[/b] on the General Application Settings tab yet, that will be done when you're ready to release. [*] Create a Steam build for these new depots. [*] Set that build to a beta branch with a password. [*] Update your autogrant package to contain these new depots so Steam will let you download the files. …

[subsection]Solution[/subsection] The order of operations can matter here, as setting a build live doesn’t go through the publish process but changing the launch options does. If it’s only a few seconds between the two, it’s unlikely to impact many people as Steam will force an update when the user goes to launch and that should grab the latest launch options. Assuming that there’s a build update associated with the change, we recommend setting the build live and then immediately publishing the app admin settings with the launch option change. …

[/td][/tr] [tr][td][b]onlytrustedwrites[/b][/td][td]bool[/td][td][/td][td]if this is true the leaderboard scores cannot be set by clients, and can only be set by publisher via SetLeaderboardScore WebAPI. Defaults to false.[/td][/tr] [tr][td][b]onlyfriendsreads[/b][/td][td]bool[/td][td][/td][td]if this is true the leaderboard scores can only be read for friends by clients, scores can always be read by publisher. …

As such this API [b]MUST[/b] be called from a secure server, and can never be used directly by clients! [section=SetLeaderboardScore]SetLeaderboardScore[/section] [code=http]POST https://partner.steam-api.com/ISteamLeaderboards/SetLeaderboardScore/v1/[/code] [table] [tr][th]Name[/th][th]Type[/th][th]Required[/th][th]Description[/th][/tr] [tr][td][b]key[/b][/td][td]string[/td][td]✔[/td][td]Steamworks Web API publisher authentication key.…

If a player is visiting your store page and if your product has content descriptors that the user has indicated they do not want to see (including defaults), they will be presented with a warning. This is keyed off the settings you entered in filling out the mature content survey while setting up your store page. These warning pages will let the player know that the content they are about to view is different from the preferences they have previously specified (or the defaults that Steam has). [section]Regional Rating Board Settings[/section] Players may also encounter an age-gate if you enabled age-gates while entering in ratings from regional rating boards such as ESRB or PEGI. …

If you'd like to include a Season Pass as part of a pre-purchase of an edition of a game, you'll still need to set up a Season Pass DLC as usual. However, as part of setting up a pre-purchase, you'll need to contact Steam to set the Season Pass DLC into pre-purchase mode. …

In this set up, customers only pay for the items they don’t already own, making it ideal for players with partial content. You can create a Complete the Set bundle as outlined in the [doclink=/store/application/bundles]Bundle Documentation[/doclink]. …

Returns false if passed an invalid poll group handle. [subsection=SetConnectionPollGroup]SetConnectionPollGroup[/subsection] [code=cpp]bool SetConnectionPollGroup( HSteamNetConnection hConn, HSteamNetPollGroup hPollGroup );[/code] Assign a connection to a poll group. …

Try again with a buffer of at least N bytes. [/list] [subsection=SetConnectionUserData]SetConnectionUserData[/subsection] [code=cpp]bool SetConnectionUserData( HSteamNetConnection hPeer, int64 nUserData );[/code] Set connection user data. …

Please note that audio will be filtered down to regular stereo when we transcode the videos. [subsection]Advanced Settings[/subsection] The Advanced Settings can be used if you have trailers in multiple languages or need to restrict them to certain countries. You will not need to use the Advanced Settings if your trailer is visible to all countries and languages. You can set the language that specific trailers will show to customers that have their settings set to that language. …

You can also set the distance from the specified corner by using [api]ISteamUtils::SetOverlayNotificationInset[/api]. This position is per-game and is reset each launch. [subsection=SetVRHeadsetStreamingEnabled]SetVRHeadsetStreamingEnabled[/subsection] [code=cpp]void SetVRHeadsetStreamingEnabled( bool bEnabled );[/code] [table] [tr][th]Name[/th][th]Type[/th][th]Description[/th][/tr] [tr][td][b]bEnabled[/b][/td][td]bool[/td][td]Turns VR HMD Streaming on ([b]true[/b]) or off ([b]false[/b]).…

It is up to the publisher/developer to decide if they want to participate in the program and they are responsible for setting the commercial price. [*][h4]Does the Café Program work for schools and universities?[/h4] Yes. We designed the Café Program to be as flexible as possible. …

[/h4] We will have no limit on the number of PCs that the pool of commercial game licenses can be used across so as long they are all on the same network where the authorized Café Server is located. [*][h4]How do I set up the Steam PC Café Server and enable content cache?[/h4] Instructions on how to set up the server and frequently asked questions around it can be found [url=https://partner.steamgames.com/doc/sitelicense/licensees/gettingstarted/licensemodelpc]here[/url]. [*][h4]How can I add my VAT ID to my license agreement?…

[subsection=PlayPrevious]PlayPrevious[/subsection] [code=cpp]void PlayPrevious();[/code] Have the Steam Music player play the previous song. [subsection=SetVolume]SetVolume[/subsection] [code=cpp]void SetVolume( float flVolume );[/code] [table] [tr][th]Name[/th][th]Type[/th][th]Description[/th][/tr] [tr][td][b]flVolume[/b][/td][td]float[/td][td]The volume percentage to set from [b]0.0[/b] to [b]1.0[/b].[/td][/tr] [/table] Sets the volume of the Steam Music player. [section=callbacks]Callbacks[/section] These are callbacks which can be fired by calling [api]steam_api::SteamAPI_RunCallbacks[/api]. …

Each playtime generator grant will be tracked separately if any of the drop settings are specified ('drop_interval', 'use_drop_window', 'drop_window', 'drop_max_per_window' ). In other words, if the itemdef does [b]NOT[/b] any drop settings, then it shares drops with all other playtime generators without drop settings and they are all limited by the application's drop interval. …

Alternatively it can be used to prevent any future drops of a deprecated item if the value is set to zero. We will only acknowledge this setting if the [code-inline]use_drop_limit[/code-inline] is assigned to "true". …

[/td][/tr] [tr][td][b]appid[/b][/td][td]uint32[/td][td]✔[/td][td]The app to use the account for[/td][/tr] [tr][td][b]memo[/b][/td][td]string[/td][td]✔[/td][td]The memo to set on the new account[/td][/tr] [/table] Creates a persistent game server account [section=SetMemo]SetMemo[/section] [code=http]POST https://api.steampowered.com/IGameServersService/SetMemo/v1/[/code] [table] [tr][th]Name[/th][th]Type[/th][th]Required[/th][th]Description[/th][/tr] [tr][td][b]key[/b][/td][td]string[/td][td]✔[/td][td]Steamworks Web API user authentication key.[/td][/tr] [tr][td][b]steamid[/b][/td][td]uint64[/td][td]✔[/td][td]The SteamID of the game server to set the memo on[/td][/tr] [tr][td][b]memo[/b][/td][td]string[/td][td]✔[/td][td]The memo to set on the new account[/td][/tr] [/table] This method changes the memo associated with the game server account. …

Those methods will be used to confirm setting a build live for a released app. Additionally, if the Steam account has any security changes (email, phone number, etc), then you will need to wait 3 days before you can set a build live for a released app. …

"[/h4] Resolution: Go to [b]Internet Options[/b]->[b]Connections[/b]->[b]Lan Settings[/b] and check [b]Automatically detect settings[/b]. [h4]Running the app build results in the following error: "ERROR! Failed 'DepotBuild for scriptname.vdf' - status = 6.…

[subsection=SetGamePhaseID]SetGamePhaseID[/subsection] [code=cpp] void SetGamePhaseID( const char *pchPhaseID) ;[/code] [table] [tr][th]Name[/th][th]Type[/th][th]Description[/th][/tr] [tr][td][b]pchPhaseID[/b][/td][td]const char *[/td][td]A game-provided persistent ID for a game phase. …

Attributes can be set as many times as the game likes with SetGamePhaseAttribute, and only the last value will be shown to the user. [subsection=SetTimelineGameMode]SetTimelineGameMode[/subsection] [code=cpp]void SetTimelineGameMode( ETimelineGameMode eMode );[/code] [table] [tr][th]Name[/th][th]Type[/th][th]Description[/th][/tr] [tr][td][b]eMode[/b][/td][td][apitype]ISteamTimeline::ETimelineGameMode[/apitype][/td][td]The mode that the game is in.…

[list] [*]Make sure your Steam Deck/Machine is connected to the network, and all updates have been applied ([b]Settings > System[/b]) [*][b]On your Steam Deck/Machine[/b]: Go to Settings > System, and select [b]Enable Developer Mode[/b] under the System Settings section. Then in Settings > Developer, select [b]Pair new host [/b]under the Development Kit section [*][b]On your Dev PC:[/b] In the Devkit tool, look for your Steam Deck/Machine. …

[/td][/tr] [tr][td][b]appid[/b][/td][td]uint32[/td][td]✔[/td][td]AppID of game[/td][/tr] [tr][td][b]starttime[/b][/td][td]uint32[/td][td][/td][td]Start time, set as a Unix timestamp[/td][/tr] [tr][td][b]endtime[/b][/td][td]uint32[/td][td][/td][td]End time, set as a Unix timestamp[/td][/tr] [tr][td][b]continue_token[/b][/td][td]string[/td][td][/td][td]Pagination token from the previous response. …

[/td][/tr] [tr][td][b]steamid[/b][/td][td]uint64[/td][td]*[/td][td]SteamID of the account that will confirm the build change. This parameter is required if betakey is set to public and the app is released[/td][/tr] [tr][td][b]description[/b][/td][td]string[/td][td][/td][td]optional description for this build[/td][/tr] [/table] The steamID is required when an app is released and the betakey is set to public. …

[/list] [/list] [subsection]Getting Started[/subsection] You can get started right away by setting up your curated Workshop page, adding a simple form within your game, and posting guidelines and style guide information for potential item creators. …

There are two parts to this: [olist] [*] Beta of your game (via Steam) - The first step is to create an updated build of your game and set it as a beta in Steam. This enables Steam to deliver a separate version of your game that customers have to opt in to and can be optionally password protected. [*] Beta of your Workshop (via Group) - You can set up a group in the Steam Community and use membership in that group to gate access to the Steam Workshop. …

[introblock=LIvestream_2.gif] [h5]In Brief[/h5]Set up a livestream to appear on your game's store page, developer homepage or special sale landing page. [h5]Level of integration[/h5]Basic streaming of your gameplay through Steam is built in. …

[/introblock] [subsection]Table of contents[/subsection] [table] [tr][td]Live Streaming[/td][td]This page[/td][/tr] [tr][td][doclink=store/broadcast/setting_up]Setting Up A Stream[/doclink][/td][td]Requirements, setup, and configuration[/td][/tr] [tr][td][doclink=store/broadcast/demo]Streaming Demos[/doclink][/td][td]Livestreaming a game demo to your store page[/td][/tr] [tr][td][doclink=store/broadcast/stats]Stats & Reporting[/doclink][/td][td]Viewership stats from your past streams[/td][/tr] [tr][td][doclink=store/broadcast/faq]FAQ[/doclink][/td][td]Frequently Asked Questions on Steam broadcast[/td][/tr] [/table] [section]Broadcasting on Steam[/section] Steam offers a feature that allows content to be streamed to Steam client and the web store. …