PdhGetDataSourceTimeRange function
Determines the time range, number of entries and, if applicable, the size of the buffer containing the performance data from the specified input source.
To use handles to data sources, use the PdhGetDataSourceTimeRangeH function.
Syntax
PDH_STATUS PdhGetDataSourceTimeRange( _In_ LPCTSTR szDataSource, _Out_ LPDWORD pdwNumEntries, _Out_ PPDH_TIME_INFO pInfo, _In_ LPDWORD pdwBufferSize );
Parameters
- szDataSource [in]
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Null-terminated string that specifies the name of a log file from which the time range information is retrieved.
- pdwNumEntries [out]
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Number of structures in the pInfo buffer. This function collects information for only one time range, so the value is typically 1, or zero if an error occurred.
- pInfo [out]
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A PDH_TIME_INFO structure that receives the time range.
- pdwBufferSize [in]
-
Size of the PDH_TIME_INFO structure, in bytes.
Return value
If the function succeeds, it returns ERROR_SUCCESS.
If the function fails, the return value is a system error code or a PDH error code. The following are possible values.
| Return code | Description |
|---|---|
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A parameter is not valid or is incorrectly formatted. |
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The counter handle is not valid. |
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The current data source is a real-time data source. |
Requirements
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Minimum supported client | Windows XP [desktop apps only] |
|---|---|
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Minimum supported server | Windows Server 2003 [desktop apps only] |
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Header |
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Library |
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DLL |
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Unicode and ANSI names | PdhGetDataSourceTimeRangeW (Unicode) and PdhGetDataSourceTimeRangeA (ANSI) |
See also
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Build date: 10/26/2012
