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IUpdateSearcher::QueryHistory method

Synchronously queries the computer for the history of the update events.

Syntax


HRESULT QueryHistory(
  [in]  long                          startIndex,
  [in]  long                          Count,
  [out] IUpdateHistoryEntryCollection **retval
);

Parameters

startIndex [in]

The index of the first event to retrieve.

Count [in]

The number of events to retrieve.

retval [out]

A pointer to an IUpdateHistoryEntryCollection interface that contains matching event records on the computer in descending chronological order.

Return value

Returns S_OK if successful. Otherwise, returns a COM or Windows error code.

This method can also return the following error codes.

Return codeDescription
E_POINTER

A parameter value is invalid or NULL.

WU_E_INVALIDINDEX

An index is invalid.

 

Remarks

This method returns WU_E_INVALIDINDEX if the startIndex parameter is less than 0 (zero) or if the Count parameter is less than or equal to 0 (zero).

Requirements

Minimum supported client

Windows XP, Windows 2000 Professional with SP3 [desktop apps only]

Minimum supported server

Windows Server 2003, Windows 2000 Server with SP3 [desktop apps only]

Header

Wuapi.h

IDL

Wuapi.idl

Library

Wuguid.lib

DLL

Wuapi.dll

See also

IUpdateSearcher

 

 

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