Criterion used for searching for landmarks which belong to a certain category.
A category has an ID in the database and it has also a unique name. There are also some global categories which are known by all databases. It is possible to specify either a local category in a specific landmark database, a global category or the name of the category. If one is set, the others are reset and not used.
It is also possible to search for uncategorized landmarks, i.e. landmarks which do not contain any categories. If neither item ID, global ID nor name are set, then CPosLandmarkSearch::StartLandmarkSearchL will search for uncategorized landmarks.
This criterion is only valid when searching for landmarks, i.e. if it is passed to CPosLandmarkSearch::StartCategorySearchL, the function will fail with error code KErrArgument.
Sets the name of the category which should be used as landmark search criterion.
The exact category name must be specified. Wild-card characters are not used as such, they will be considered as ordinary characters. It is possible to use CPosLmCatNameCriteria to list categories which match a category name pattern containing wild-card characters.
The matching is case sensitive.
An empty descriptor means uncategorized landmarks search.
Parameters:
aCategoryName
The category name.
Leave:
KErrArgument The category name is longer than KPosLmMaxCategoryNameLength.