272 lines
12 KiB
C
272 lines
12 KiB
C
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//====== Copyright <20> 1996-2008, Valve Corporation, All rights reserved. =======
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//
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// Purpose: interface to utility functions in Steam
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//
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//=============================================================================
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#ifndef ISTEAMUTILS_H
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#define ISTEAMUTILS_H
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#ifdef _WIN32
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#pragma once
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#endif
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#include "steam_api_common.h"
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// Steam API call failure results
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enum ESteamAPICallFailure
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{
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k_ESteamAPICallFailureNone = -1, // no failure
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k_ESteamAPICallFailureSteamGone = 0, // the local Steam process has gone away
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k_ESteamAPICallFailureNetworkFailure = 1, // the network connection to Steam has been broken, or was already broken
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// SteamServersDisconnected_t callback will be sent around the same time
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// SteamServersConnected_t will be sent when the client is able to talk to the Steam servers again
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k_ESteamAPICallFailureInvalidHandle = 2, // the SteamAPICall_t handle passed in no longer exists
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k_ESteamAPICallFailureMismatchedCallback = 3,// GetAPICallResult() was called with the wrong callback type for this API call
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};
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// Input modes for the Big Picture gamepad text entry
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enum EGamepadTextInputMode
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{
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k_EGamepadTextInputModeNormal = 0,
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k_EGamepadTextInputModePassword = 1
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};
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// Controls number of allowed lines for the Big Picture gamepad text entry
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enum EGamepadTextInputLineMode
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{
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k_EGamepadTextInputLineModeSingleLine = 0,
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k_EGamepadTextInputLineModeMultipleLines = 1
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};
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// function prototype for warning message hook
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#if defined( POSIX )
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#define __cdecl
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#endif
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extern "C" typedef void (__cdecl *SteamAPIWarningMessageHook_t)(int, const char *);
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//-----------------------------------------------------------------------------
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// Purpose: interface to user independent utility functions
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//-----------------------------------------------------------------------------
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class ISteamUtils
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{
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public:
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// return the number of seconds since the user
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virtual uint32 GetSecondsSinceAppActive() = 0;
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virtual uint32 GetSecondsSinceComputerActive() = 0;
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// the universe this client is connecting to
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virtual EUniverse GetConnectedUniverse() = 0;
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// Steam server time. Number of seconds since January 1, 1970, GMT (i.e unix time)
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virtual uint32 GetServerRealTime() = 0;
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// returns the 2 digit ISO 3166-1-alpha-2 format country code this client is running in (as looked up via an IP-to-location database)
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// e.g "US" or "UK".
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virtual const char *GetIPCountry() = 0;
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// returns true if the image exists, and valid sizes were filled out
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virtual bool GetImageSize( int iImage, uint32 *pnWidth, uint32 *pnHeight ) = 0;
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// returns true if the image exists, and the buffer was successfully filled out
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// results are returned in RGBA format
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// the destination buffer size should be 4 * height * width * sizeof(char)
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virtual bool GetImageRGBA( int iImage, uint8 *pubDest, int nDestBufferSize ) = 0;
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// returns the IP of the reporting server for valve - currently only used in Source engine games
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virtual bool GetCSERIPPort( uint32 *unIP, uint16 *usPort ) = 0;
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// return the amount of battery power left in the current system in % [0..100], 255 for being on AC power
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virtual uint8 GetCurrentBatteryPower() = 0;
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// returns the appID of the current process
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virtual uint32 GetAppID() = 0;
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// Sets the position where the overlay instance for the currently calling game should show notifications.
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// This position is per-game and if this function is called from outside of a game context it will do nothing.
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virtual void SetOverlayNotificationPosition( ENotificationPosition eNotificationPosition ) = 0;
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// API asynchronous call results
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// can be used directly, but more commonly used via the callback dispatch API (see steam_api.h)
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virtual bool IsAPICallCompleted( SteamAPICall_t hSteamAPICall, bool *pbFailed ) = 0;
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virtual ESteamAPICallFailure GetAPICallFailureReason( SteamAPICall_t hSteamAPICall ) = 0;
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virtual bool GetAPICallResult( SteamAPICall_t hSteamAPICall, void *pCallback, int cubCallback, int iCallbackExpected, bool *pbFailed ) = 0;
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// Deprecated. Applications should use SteamAPI_RunCallbacks() instead. Game servers do not need to call this function.
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STEAM_PRIVATE_API( virtual void RunFrame() = 0; )
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// returns the number of IPC calls made since the last time this function was called
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// Used for perf debugging so you can understand how many IPC calls your game makes per frame
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// Every IPC call is at minimum a thread context switch if not a process one so you want to rate
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// control how often you do them.
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virtual uint32 GetIPCCallCount() = 0;
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// API warning handling
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// 'int' is the severity; 0 for msg, 1 for warning
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// 'const char *' is the text of the message
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// callbacks will occur directly after the API function is called that generated the warning or message
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virtual void SetWarningMessageHook( SteamAPIWarningMessageHook_t pFunction ) = 0;
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// Returns true if the overlay is running & the user can access it. The overlay process could take a few seconds to
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// start & hook the game process, so this function will initially return false while the overlay is loading.
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virtual bool IsOverlayEnabled() = 0;
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// Normally this call is unneeded if your game has a constantly running frame loop that calls the
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// D3D Present API, or OGL SwapBuffers API every frame.
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//
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// However, if you have a game that only refreshes the screen on an event driven basis then that can break
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// the overlay, as it uses your Present/SwapBuffers calls to drive it's internal frame loop and it may also
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// need to Present() to the screen any time an even needing a notification happens or when the overlay is
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// brought up over the game by a user. You can use this API to ask the overlay if it currently need a present
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// in that case, and then you can check for this periodically (roughly 33hz is desirable) and make sure you
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// refresh the screen with Present or SwapBuffers to allow the overlay to do it's work.
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virtual bool BOverlayNeedsPresent() = 0;
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// Asynchronous call to check if an executable file has been signed using the public key set on the signing tab
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// of the partner site, for example to refuse to load modified executable files.
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// The result is returned in CheckFileSignature_t.
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// k_ECheckFileSignatureNoSignaturesFoundForThisApp - This app has not been configured on the signing tab of the partner site to enable this function.
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// k_ECheckFileSignatureNoSignaturesFoundForThisFile - This file is not listed on the signing tab for the partner site.
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// k_ECheckFileSignatureFileNotFound - The file does not exist on disk.
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// k_ECheckFileSignatureInvalidSignature - The file exists, and the signing tab has been set for this file, but the file is either not signed or the signature does not match.
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// k_ECheckFileSignatureValidSignature - The file is signed and the signature is valid.
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STEAM_CALL_RESULT( CheckFileSignature_t )
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virtual SteamAPICall_t CheckFileSignature( const char *szFileName ) = 0;
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// Activates the Big Picture text input dialog which only supports gamepad input
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virtual bool ShowGamepadTextInput( EGamepadTextInputMode eInputMode, EGamepadTextInputLineMode eLineInputMode, const char *pchDescription, uint32 unCharMax, const char *pchExistingText ) = 0;
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// Returns previously entered text & length
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virtual uint32 GetEnteredGamepadTextLength() = 0;
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virtual bool GetEnteredGamepadTextInput( char *pchText, uint32 cchText ) = 0;
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// returns the language the steam client is running in, you probably want ISteamApps::GetCurrentGameLanguage instead, this is for very special usage cases
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virtual const char *GetSteamUILanguage() = 0;
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// returns true if Steam itself is running in VR mode
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virtual bool IsSteamRunningInVR() = 0;
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// Sets the inset of the overlay notification from the corner specified by SetOverlayNotificationPosition.
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virtual void SetOverlayNotificationInset( int nHorizontalInset, int nVerticalInset ) = 0;
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// returns true if Steam & the Steam Overlay are running in Big Picture mode
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// Games much be launched through the Steam client to enable the Big Picture overlay. During development,
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// a game can be added as a non-steam game to the developers library to test this feature
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virtual bool IsSteamInBigPictureMode() = 0;
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// ask SteamUI to create and render its OpenVR dashboard
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virtual void StartVRDashboard() = 0;
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// Returns true if the HMD content will be streamed via Steam In-Home Streaming
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virtual bool IsVRHeadsetStreamingEnabled() = 0;
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// Set whether the HMD content will be streamed via Steam In-Home Streaming
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// If this is set to true, then the scene in the HMD headset will be streamed, and remote input will not be allowed.
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// If this is set to false, then the application window will be streamed instead, and remote input will be allowed.
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// The default is true unless "VRHeadsetStreaming" "0" is in the extended appinfo for a game.
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// (this is useful for games that have asymmetric multiplayer gameplay)
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virtual void SetVRHeadsetStreamingEnabled( bool bEnabled ) = 0;
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};
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#define STEAMUTILS_INTERFACE_VERSION "SteamUtils009"
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// Global interface accessor
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inline ISteamUtils *SteamUtils();
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STEAM_DEFINE_INTERFACE_ACCESSOR( ISteamUtils *, SteamUtils, SteamInternal_FindOrCreateUserInterface( 0, STEAMUTILS_INTERFACE_VERSION ) );
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// Global accessor for the gameserver client
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inline ISteamUtils *SteamGameServerUtils();
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STEAM_DEFINE_INTERFACE_ACCESSOR( ISteamUtils *, SteamGameServerUtils, SteamInternal_FindOrCreateGameServerInterface( 0, STEAMUTILS_INTERFACE_VERSION ) );
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// callbacks
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#if defined( VALVE_CALLBACK_PACK_SMALL )
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#pragma pack( push, 4 )
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#elif defined( VALVE_CALLBACK_PACK_LARGE )
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#pragma pack( push, 8 )
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#else
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#error steam_api_common.h should define VALVE_CALLBACK_PACK_xxx
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#endif
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//-----------------------------------------------------------------------------
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// Purpose: The country of the user changed
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//-----------------------------------------------------------------------------
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struct IPCountry_t
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{
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enum { k_iCallback = k_iSteamUtilsCallbacks + 1 };
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};
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//-----------------------------------------------------------------------------
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// Purpose: Fired when running on a laptop and less than 10 minutes of battery is left, fires then every minute
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//-----------------------------------------------------------------------------
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struct LowBatteryPower_t
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{
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enum { k_iCallback = k_iSteamUtilsCallbacks + 2 };
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uint8 m_nMinutesBatteryLeft;
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};
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//-----------------------------------------------------------------------------
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// Purpose: called when a SteamAsyncCall_t has completed (or failed)
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//-----------------------------------------------------------------------------
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struct SteamAPICallCompleted_t
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{
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enum { k_iCallback = k_iSteamUtilsCallbacks + 3 };
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SteamAPICall_t m_hAsyncCall;
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int m_iCallback;
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uint32 m_cubParam;
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};
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//-----------------------------------------------------------------------------
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// called when Steam wants to shutdown
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//-----------------------------------------------------------------------------
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struct SteamShutdown_t
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{
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enum { k_iCallback = k_iSteamUtilsCallbacks + 4 };
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};
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//-----------------------------------------------------------------------------
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// results for CheckFileSignature
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//-----------------------------------------------------------------------------
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enum ECheckFileSignature
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{
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k_ECheckFileSignatureInvalidSignature = 0,
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k_ECheckFileSignatureValidSignature = 1,
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k_ECheckFileSignatureFileNotFound = 2,
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k_ECheckFileSignatureNoSignaturesFoundForThisApp = 3,
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k_ECheckFileSignatureNoSignaturesFoundForThisFile = 4,
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};
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//-----------------------------------------------------------------------------
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// callback for CheckFileSignature
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//-----------------------------------------------------------------------------
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struct CheckFileSignature_t
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{
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enum { k_iCallback = k_iSteamUtilsCallbacks + 5 };
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ECheckFileSignature m_eCheckFileSignature;
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};
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// k_iSteamUtilsCallbacks + 13 is taken
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//-----------------------------------------------------------------------------
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// Big Picture gamepad text input has been closed
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//-----------------------------------------------------------------------------
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struct GamepadTextInputDismissed_t
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{
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enum { k_iCallback = k_iSteamUtilsCallbacks + 14 };
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bool m_bSubmitted; // true if user entered & accepted text (Call ISteamUtils::GetEnteredGamepadTextInput() for text), false if canceled input
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uint32 m_unSubmittedText;
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};
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// k_iSteamUtilsCallbacks + 15 is taken
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#pragma pack( pop )
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#endif // ISTEAMUTILS_H
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