ISearchQueryHelper::put_QueryTermExpansion Method

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Sets a value that specifies how query terms are to be expanded.

Syntax

HRESULT put_QueryTermExpansion(      
    SEARCH_TERM_EXPANSION expandTerms
);

Parameters

  • expandTerms
    [in] Value from the SEARCH_TERM_EXPANSION enumeration that specifies the search term expansion. If not set, the default value is SEARCH_TERM_PREFIX_ALL.

Return Value

Returns S_OK if successful, or an error value otherwise.

Remarks

The ISearchQueryHelper::put_QueryTermExpansion method allows for expansion of some query terms with wildcard characters, similar to regular expression expansion.

While the SEARCH_TERM_EXPANSION enumerated type lets you specify stem expansion, Windows Search does not currently support its use with the ISearchQueryHelper interface.

The DSearch code sample, available on Code Gallery and the Windows 7 SDK, demonstrates how to create a class for a static console application to query Windows Search using the Microsoft.Search.Interop assembly for ISearchQueryHelper.

See Also

ISearchQueryHelper::get_QueryTermExpansion, SEARCH_TERM_EXPANSION