//
// Set client info flags (For SetClientInfo)
//
#define DPNSETCLIENTINFO_SYNC				DPNOP_SYNC

//
// Set group info flags (For SetGroupInfo)
//
#define DPNSETGROUPINFO_SYNC				DPNOP_SYNC

//
// Set peer info flags (For SetPeerInfo)
//
#define DPNSETPEERINFO_SYNC					DPNOP_SYNC

//
// Set server info flags (For SetServerInfo)
//
#define DPNSETSERVERINFO_SYNC				DPNOP_SYNC

//
// SP capabilities flags
//
#define	DPNSPCAPS_SUPPORTSDPNSRV			0x0001
#define	DPNSPCAPS_SUPPORTSBROADCAST			0x0002
#define	DPNSPCAPS_SUPPORTSALLADAPTERS		0x0004

/****************************************************************************
 *
 * DirectPlay8 Structures (Non-Message)
 *
 ****************************************************************************/

//
// Application description
//
typedef struct	_DPN_APPLICATION_DESC
{
	DWORD	dwSize;							// Size of this structure
	DWORD	dwFlags;						// Flags (DPNSESSION_...)
	GUID	guidInstance;					// Instance GUID
	GUID	guidApplication;				// Application GUID
	DWORD	dwMaxPlayers;					// Maximum # of players allowed (0=no limit)
	DWORD	dwCurrentPlayers;				// Current # of players allowed
	WCHAR	*pwszSessionName;				// Name of the session
	WCHAR	*pwszPassword;					// Password for the session
	PVOID	pvReservedData;					
	DWORD	dwReservedDataSize;
	PVOID	pvApplicationReservedData;
	DWORD	dwApplicationReservedDataSize;
} DPN_APPLICATION_DESC, *PDPN_APPLICATION_DESC;

//
// Generic Buffer Description
//
typedef struct	_BUFFERDESC
{
	DWORD	dwBufferSize;		
	BYTE * 	pBufferData;		
} BUFFERDESC, DPN_BUFFER_DESC, *PDPN_BUFFER_DESC;

typedef BUFFERDESC	FAR * PBUFFERDESC;

//
// DirectPlay8 capabilities
//
typedef struct	_DPN_CAPS
{
    DWORD   dwSize;							// Size of this structure
	DWORD	dwFlags;						// Flags
    DWORD   dwConnectTimeout;				// ms before a connect request times out
    DWORD   dwConnectRetries;				// # of times to attempt the connection
    DWORD   dwTimeoutUntilKeepAlive;		// ms of inactivity before a keep alive is sent
} DPN_CAPS, *PDPN_CAPS;

// Connection Statistics information

typedef struct _DPN_CONNECTION_INFO
{
    DWORD   dwSize;
    DWORD   dwRoundTripLatencyMS;
    DWORD   dwThroughputBPS;
    DWORD	dwPeakThroughputBPS;

	DWORD	dwBytesSentGuaranteed;
	DWORD	dwPacketsSentGuaranteed;
	DWORD	dwBytesSentNonGuaranteed;
	DWORD	dwPacketsSentNonGuaranteed;

	DWORD	dwBytesRetried;		// Guaranteed only
	DWORD	dwPacketsRetried;	// Guaranteed only
	DWORD	dwBytesDropped;		// Non Guaranteed only
	DWORD	dwPacketsDropped;	// Non Guaranteed only

	DWORD	dwMessagesTransmittedHighPriority;
	DWORD	dwMessagesTimedOutHighPriority;
	DWORD	dwMessagesTransmittedNormalPriority;
	DWORD	dwMessagesTimedOutNormalPriority;
	DWORD	dwMessagesTransmittedLowPriority;
	DWORD	dwMessagesTimedOutLowPriority;

	DWORD	dwBytesReceivedGuaranteed;
	DWORD	dwPacketsReceivedGuaranteed;
	DWORD	dwBytesReceivedNonGuaranteed;
	DWORD	dwPacketsReceivedNonGuaranteed;
	DWORD	dwMessagesReceived;

} DPN_CONNECTION_INFO, *PDPN_CONNECTION_INFO;


//
// Group information strucutre
//
typedef struct	_DPN_GROUP_INFO
{
	DWORD	dwSize;				// size of this structure
	DWORD	dwInfoFlags;		// information contained
	PWSTR	pwszName;			// Unicode Name
	PVOID	pvData;				// data block
	DWORD	dwDataSize;			// size in BYTES of data block
	DWORD	dwGroupFlags;		// group flags (DPNGROUP_...)
} DPN_GROUP_INFO, *PDPN_GROUP_INFO;

//
// Player information structure
//
typedef struct	_DPN_PLAYER_INFO
{
	DWORD	dwSize;				// size of this structure
	DWORD	dwInfoFlags;		// information contained
	PWSTR	pwszName;			// Unicode Name
	PVOID	pvData;				// data block
	DWORD	dwDataSize;			// size in BYTES of data block
	DWORD	dwPlayerFlags;		// player flags (DPNPLAYER_...)
} DPN_PLAYER_INFO, *PDPN_PLAYER_INFO;

typedef struct _DPN_SECURITY_CREDENTIALS	DPN_SECURITY_CREDENTIALS, *PDPN_SECURITY_CREDENTIALS;
typedef struct _DPN_SECURITY_DESC			DPN_SECURITY_DESC, *PDPN_SECURITY_DESC;

//
// Service provider & adapter enumeration structure
//
typedef struct _DPN_SERVICE_PROVIDER_INFO
{
	DWORD		dwFlags;
	GUID		guid;		// SP Guid
	WCHAR		*pwszName;	// Friendly Name
	PVOID		pvReserved;	
	DWORD		dwReserved;
} DPN_SERVICE_PROVIDER_INFO, *PDPN_SERVICE_PROVIDER_INFO;

//
// Service provider caps structure
//
typedef struct _DPN_SP_CAPS
{
	DWORD   dwSize;							// Size of this structure
	DWORD   dwFlags;						// Flags ((DPNSPCAPS_...)
	DWORD   dwNumThreads;					// # of worker threads to use
	DWORD	dwDefaultEnumCount;				// default # of enum requests
	DWORD	dwDefaultEnumRetryInterval;		// default ms between enum requests
	DWORD	dwDefaultEnumTimeout;			// default enum timeout
	DWORD	dwMaxEnumPayloadSize;			// maximum size in bytes for enum payload data
	DWORD	dwBuffersPerThread;				// number of receive buffers per thread
	DWORD	dwSystemBufferSize;				// amount of buffering to do in addition to posted receive buffers
} DPN_SP_CAPS, *PDPN_SP_CAPS;


/****************************************************************************
 *
 * IDirectPlay8 message handler call back structures
 *
 ****************************************************************************/

//
// Add player to group strucutre for message handler
// (DPN_MSGID_ADD_PLAYER_TO_GROUP)
//
typedef struct	_DPNMSG_ADD_PLAYER_TO_GROUP
{
	DWORD	dwSize;				// Size of this structure
	DPNID	dpnidGroup;			// DPNID of group
	PVOID	pvGroupContext;		// Group context value
	DPNID	dpnidPlayer;		// DPNID of added player
	PVOID	pvPlayerContext;	// Player context value
} DPNMSG_ADD_PLAYER_TO_GROUP, *PDPNMSG_ADD_PLAYER_TO_GROUP;

//
// Async operation completion structure for message handler
// (DPN_MSGID_ASYNC_OP_COMPLETE)
//
typedef struct	_DPNMSG_ASYNC_OP_COMPLETE
{
	DWORD		dwSize;			// Size of this structure
	DPNHANDLE	hAsyncOp;		// DirectPlay8 async operation handle
	PVOID		pvUserContext;	// User context supplied
	HRESULT		hResultCode;	// HRESULT of operation
} DPNMSG_ASYNC_OP_COMPLETE, *PDPNMSG_ASYNC_OP_COMPLETE;

//
// Client info structure for message handler
// (DPN_MSGID_CLIENT_INFO)
//
typedef struct	_DPNMSG_CLIENT_INFO
{
	DWORD	dwSize;				// Size of this structure
	DPNID	dpnidClient;		// DPNID of client
	PVOID	pvPlayerContext;	// Player context value
} DPNMSG_CLIENT_INFO, *PDPNMSG_CLIENT_INFO;

//
// Connect complete structure for message handler
// (DPN_MSGID_CONNECT_COMPLETE)
//
typedef struct	_DPNMSG_CONNECT_COMPLETE
{
	DWORD		dwSize;						// Size of this structure
	DPNHANDLE	hAsyncOp;					// DirectPlay8 Async operation handle
	PVOID		pvUserContext;				// User context supplied at Connect
	HRESULT		hResultCode;				// HRESULT of connection attempt
	PVOID		pvApplicationReplyData;		// Connection reply data from Host/Server
	DWORD		dwApplicationReplyDataSize;	// Size (in bytes) of pvApplicationReplyData
} DPNMSG_CONNECT_COMPLETE, *PDPNMSG_CONNECT_COMPLETE;

//
// Create group structure for message handler
// (DPN_MSGID_CREATE_GROUP)
//
typedef struct	_DPNMSG_CREATE_GROUP
{
	DWORD	dwSize;				// Size of this structure
	DPNID	dpnidGroup;			// DPNID of new group
	DPNID	dpnidOwner;			// Owner of newgroup
	PVOID	pvGroupContext;		// Group context value
} DPNMSG_CREATE_GROUP, *PDPNMSG_CREATE_GROUP;

//
// Create player structure for message handler
// (DPN_MSGID_CREATE_PLAYER)
//
typedef struct	_DPNMSG_CREATE_PLAYER
{
	DWORD	dwSize;				// Size of this structure
	DPNID	dpnidPlayer;		// DPNID of new player
	PVOID	pvPlayerContext;	// Player context value
} DPNMSG_CREATE_PLAYER, *PDPNMSG_CREATE_PLAYER;

//
// Destroy group structure for message handler
// (DPN_MSGID_DESTROY_GROUP)
//
typedef struct	_DPNMSG_DESTROY_GROUP
{
	DWORD	dwSize;				// Size of this structure
	DPNID	dpnidGroup;			// DPNID of destroyed group
	PVOID	pvGroupContext;		// Group context value
	DWORD	dwReason;			// Information only
} DPNMSG_DESTROY_GROUP, *PDPNMSG_DESTROY_GROUP;

//
// Destroy player structure for message handler
// (DPN_MSGID_DESTROY_PLAYER)
//
typedef struct	_DPNMSG_DESTROY_PLAYER
{
	DWORD	dwSize;				// Size of this structure
	DPNID	dpnidPlayer;		// DPNID of leaving player
	PVOID	pvPlayerContext;	// Player context value
	DWORD	dwReason;			// Information only
} DPNMSG_DESTROY_PLAYER, *PDPNMSG_DESTROY_PLAYER;

//
// Enumeration request received structure for message handler
// (DPN_MSGID_ENUM_HOSTS_QUERY)
//
typedef	struct	_DPNMSG_ENUM_HOSTS_QUERY
{
	DWORD				dwSize;                 // Size of this structure.
	IDirectPlay8Address *pAddressSender;        // Address of client who sent the request
	IDirectPlay8Address	*pAddressDevice;        // Address of device request was received on
	PVOID				pvReceivedData;         // Request data (set on client)
	DWORD				dwReceivedDataSize;     // Request data size (set on client)
	DWORD				dwMaxResponseDataSize;	// Max allowable size of enum response
	PVOID				pvResponseData;		    // Optional query repsonse (user set)
	DWORD				dwResponseDataSize;	    // Optional query response size (user set)
	PVOID				pvResponseContext;	    // Optional query response context (user set)
} DPNMSG_ENUM_HOSTS_QUERY, *PDPNMSG_ENUM_HOSTS_QUERY;

//
// Enumeration response received structure for message handler
// (DPN_MSGID_ENUM_HOSTS_RESPONSE)
//
typedef	struct	_DPNMSG_ENUM_HOSTS_RESPONSE
{
	DWORD						dwSize;                     // Size of this structure
	IDirectPlay8Address			*pAddressSender;            // Address of host who responded
	IDirectPlay8Address			*pAddressDevice;            // Device response was received on