Interface to a human interface infrastructure database in an extensible firmware interface environment

摘要

An improved HII database driver is provided in an EFI environment. The HII database driver is capable of storing extended information regarding an HII component in an HII database at the time the package containing the HII component is parsed for inclusion in the HII database. Extended information for a string may include length of the string in Unicode characters or the length of the string in narrow screen glyphs. The HII database driver also exposes methods through which the extended information may be retrieved from the HII database. The extended information may be utilized to allocate an appropriately sized buffer for storing the string.