GetFirstKeyword()
The first keyword in the specified Search object. If there is no first keyword, the value returned will be null.
This function will return the first keyword in a specified Search object. To find the first keyword in the publication search, you must first create a Search object using OpenSearch.
Note:
This function also sets an internal value for the Search object back to the first entry in the list, in order to recursively get entries out of the search list.