mirror of
https://github.com/ValveSoftware/Proton.git
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77 lines
2.6 KiB
C
77 lines
2.6 KiB
C
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//====== Copyright <20>, Valve Corporation, All rights reserved. =======
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//
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// Purpose: interface to the game coordinator for this application
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//
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//=============================================================================
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#ifndef ISTEAMGAMECOORDINATOR
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#define ISTEAMGAMECOORDINATOR
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#ifdef _WIN32
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#pragma once
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#endif
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#include "isteamclient.h"
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#include "steamtypes.h"
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#include "steamclientpublic.h"
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// list of possible return values from the ISteamGameCoordinator API
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enum EGCResults
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{
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k_EGCResultOK = 0,
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k_EGCResultNoMessage = 1, // There is no message in the queue
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k_EGCResultBufferTooSmall = 2, // The buffer is too small for the requested message
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k_EGCResultNotLoggedOn = 3, // The client is not logged onto Steam
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k_EGCResultInvalidMessage = 4, // Something was wrong with the message being sent with SendMessage
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};
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//-----------------------------------------------------------------------------
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// Purpose: Functions for sending and receiving messages from the Game Coordinator
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// for this application
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//-----------------------------------------------------------------------------
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class ISteamGameCoordinator
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{
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public:
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// sends a message to the Game Coordinator
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virtual EGCResults SendMessage( uint32 unMsgType, const void *pubData, uint32 cubData ) = 0;
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// returns true if there is a message waiting from the game coordinator
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virtual bool IsMessageAvailable( uint32 *pcubMsgSize ) = 0;
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// fills the provided buffer with the first message in the queue and returns k_EGCResultOK or
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// returns k_EGCResultNoMessage if there is no message waiting. pcubMsgSize is filled with the message size.
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// If the provided buffer is not large enough to fit the entire message, k_EGCResultBufferTooSmall is returned
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// and the message remains at the head of the queue.
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virtual EGCResults RetrieveMessage( uint32 *punMsgType, void *pubDest, uint32 cubDest, uint32 *pcubMsgSize ) = 0;
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};
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#define STEAMGAMECOORDINATOR_INTERFACE_VERSION "SteamGameCoordinator001"
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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 isteamclient.h must be included
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#endif
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// callback notification - A new message is available for reading from the message queue
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struct GCMessageAvailable_t
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{
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enum { k_iCallback = k_iSteamGameCoordinatorCallbacks + 1 };
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uint32 m_nMessageSize;
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};
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// callback notification - A message failed to make it to the GC. It may be down temporarily
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struct GCMessageFailed_t
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{
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enum { k_iCallback = k_iSteamGameCoordinatorCallbacks + 2 };
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};
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#pragma pack( pop )
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#endif // ISTEAMGAMECOORDINATOR
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