Determines the number of strings in the container.
PRL_RESULT PrlStrList_GetItemsCount( PRL_HANDLE hStringsList, PRL_UINT32_PTR pnItemsCount );
PrlApiCore.h
PRL_RESULT. Possible values:
PRL_ERR_INVALID_ARG - invalid handle or null pointer was passed.
PRL_ERR_SUCCESS - function completed successfully.