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 code | Description |
|---|---|
| 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 |