ISearchQueryHelper::put_QueryTermExpansion method (searchapi.h)
Sets a value that specifies how query terms are to be expanded.
Syntax
HRESULT put_QueryTermExpansion(
[in] SEARCH_TERM_EXPANSION expandTerms
);
Parameters
[in] expandTerms
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.
Checkout the DSearch code sample to see how to create a class for a static console application to query Windows Search using the Microsoft.Search.Interop assembly for ISearchQueryHelper.
Requirements
| Requirement | Value |
|---|---|
| Minimum supported client | Windows XP with SP2, Windows Vista [desktop apps only] |
| Minimum supported server | Windows Server 2003 with SP1 [desktop apps only] |
| Target Platform | Windows |
| Header | searchapi.h |
| Redistributable | Windows Desktop Search (WDS) 3.0 |
See also
ISearchQueryHelper::get_QueryTermExpansion
Querying the Index Programmatically