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The PeerGraphSendData function sends data to a neighbor node or a directly connected node.
Syntax
NOT_BUILD_WINDOWS_DEPRECATE HRESULT PeerGraphSendData(
[in] HGRAPH hGraph,
[in] ULONGLONG ullConnectionId,
[in] const GUID *pType,
[in] ULONG cbData,
[in] PVOID pvData
);
Parameters
[in] hGraph
Handle to the peer graph.
[in] ullConnectionId
Specifies the unique ID of the connection to send data on.
[in] pType
Specifies an application-defined data type to send. This parameter cannot be NULL.
[in] cbData
Specifies the number of bytes pointed to by pvData.
[in] pvData
Pointer to the data to send.
Return value
Returns S_OK if the operation succeeds; otherwise, the function returns one of the following values:
| Return code | Description |
|---|---|
|
One of the parameters is not valid. |
|
No connection with the given ID exists. |
|
The handle to the peer graph is invalid. |
|
The graph must be initialized with a call to PeerGraphStartup before using this function. |
Remarks
The PeerGraphSendData function returns as soon as data has been sent to the network layer; the peer graphing layer does not wait for an acknowledgment from the other side of the connection.
Note In order to be able to receive data with a direct connection, an application must register for a peer event of type PEER_GRAPH_EVENT_INCOMING_DATA. See PeerGraphRegisterEvent.
Requirements
| Requirement | Value |
|---|---|
| Minimum supported client | Windows XP with SP2 [desktop apps only],Windows XP with SP1 with the Advanced Networking Pack forWindows XP |
| Minimum supported server | None supported |
| Target Platform | Windows |
| Header | p2p.h |
| Library | P2PGraph.lib |
| DLL | P2PGraph.dll |