Determine when beginning-of-file is encountered.
XSharp.RT (in XSharp.RT.dll) Version: 2.0
TRUE after an attempt to skip backward beyond the first logical record in a database file or if
the current database file contains no records; otherwise, FALSE. If there is no database file open in the
current work area, BOF() returns TRUE.
BOF() is the same as CoreDbBOF().