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//====== Copyright � 1996-2007, Valve Corporation, All rights reserved. =======
//
// Purpose: Interface to unified messages client
//
// You should not need to use this interface except if your product is using a language other than C++.
// Contact your Steam Tech contact for more details.
//
//=============================================================================
#ifndef ISTEAMUNIFIEDMESSAGES_H
#define ISTEAMUNIFIEDMESSAGES_H
#ifdef _WIN32
#pragma once
#endif
typedef uint64 ClientUnifiedMessageHandle;
class ISteamUnifiedMessages
{
public:
static const ClientUnifiedMessageHandle k_InvalidUnifiedMessageHandle = 0;
// Sends a service method (in binary serialized form) using the Steam Client.
// Returns a unified message handle (k_InvalidUnifiedMessageHandle if could not send the message).
virtual ClientUnifiedMessageHandle SendMethod( const char *pchServiceMethod, const void *pRequestBuffer, uint32 unRequestBufferSize, uint64 unContext ) = 0;
// Gets the size of the response and the EResult. Returns false if the response is not ready yet.
virtual bool GetMethodResponseInfo( ClientUnifiedMessageHandle hHandle, uint32 *punResponseSize, EResult *peResult ) = 0;
// Gets a response in binary serialized form (and optionally release the corresponding allocated memory).
virtual bool GetMethodResponseData( ClientUnifiedMessageHandle hHandle, void *pResponseBuffer, uint32 unResponseBufferSize, bool bAutoRelease ) = 0;
// Releases the message and its corresponding allocated memory.
virtual bool ReleaseMethod( ClientUnifiedMessageHandle hHandle ) = 0;
// Sends a service notification (in binary serialized form) using the Steam Client.
// Returns true if the notification was sent successfully.
virtual bool SendNotification( const char *pchServiceNotification, const void *pNotificationBuffer, uint32 unNotificationBufferSize ) = 0;
};
#define STEAMUNIFIEDMESSAGES_INTERFACE_VERSION "STEAMUNIFIEDMESSAGES_INTERFACE_VERSION001"
// callbacks
#if defined( VALVE_CALLBACK_PACK_SMALL )
#pragma pack( push, 4 )
#elif defined( VALVE_CALLBACK_PACK_LARGE )
#pragma pack( push, 8 )
#else
#error isteamclient.h must be included
#endif
struct SteamUnifiedMessagesSendMethodResult_t
{
enum { k_iCallback = k_iClientUnifiedMessagesCallbacks + 1 };
ClientUnifiedMessageHandle m_hHandle; // The handle returned by SendMethod().
uint64 m_unContext; // Context provided when calling SendMethod().
EResult m_eResult; // The result of the method call.
uint32 m_unResponseSize; // The size of the response.
};
#pragma pack( pop )
#endif // ISTEAMUNIFIEDMESSAGES_H
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