Function Header() Foundation
Determines the length of the file header of an opened DBF file.
Header() --> nBytes
The return value of Header() is an integer numeric value indicating the length of the file header (in number of bytes) of an open DBF file in a work area. When no DBF file is open in the specified work area, the value zero is returned.
The file function Header() returns the number of bytes in the file header of a DBF file. The DBF file must be open in a work area. When the function is called without an alias operator, it returns the length of the file header of the DBF file in the current work area. The function is used with LastRec() and RecSize() to determine the size of an open DBF file. The total file size may be needed for backup routines creating copies of DBF files.
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