ISearchQueryHelper::put_QueryTermExpansion method

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

Syntax


HRESULT put_QueryTermExpansion(
  [in] SEARCH_TERM_EXPANSION expandTerms
);

Parameters

expandTerms [in]

Type: SEARCH_TERM_EXPANSION

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

Type: HRESULT

If this method succeeds, it returns S_OK. Otherwise, it returns an HRESULT error code.

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.

Requirements

Minimum supported client

Windows XP with SP2, Windows Vista [desktop apps only]

Minimum supported server

Windows Server 2003 with SP1 [desktop apps only]

Redistributable

Windows Desktop Search (WDS) 3.0

Header

Searchapi.h

IDL

Searchquery.idl

See also

ISearchQueryHelper
ISearchQueryHelper::get_QueryTermExpansion
SEARCH_TERM_EXPANSION
Querying the Index Programmatically
Querying the Index with Windows Search SQL Syntax

 

 

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