PeerGraphExportDatabase function (p2p.h)

Article
02/22/2024

The PeerGraphExportDatabase function exports a peer graph database into a file that you can move to a different computer. By using PeerGraphImportDatabase, a peer graph database can be imported to a different computer.

Syntax

NOT_BUILD_WINDOWS_DEPRECATE HRESULT PeerGraphExportDatabase(
  [in] HGRAPH hGraph,
  [in] PCWSTR pwzFilePath
);

Parameters

[in] hGraph

Handle to a peer graph.

[in] pwzFilePath

Pointer to a string that contains the file path to store exported data. If a data storage file exists and contains data when new data is exported to it, then the new data overwrites the old data.

Return value

If the function call succeeds, the return value is S_OK. Otherwise, it returns either an error located in WinErr.h, or one of the following values.

Return code	Description
E_INVALIDARG	One parameter is not valid.
E_OUTOFMEMORY	There is not enough memory to perform a specified operation.
PEER_E_INVALID_GRAPH	The handle to a graph is invalid.
PEER_E_NOT_INITIALIZED	A graph must be initialized with a call to PeerGraphStartup before using this function.

Remarks

If the export of a database fails because of file creation errors, a standard WinErr.h file error is returned.

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

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