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Inside Macintosh: Files /

Chapter 1 - Introduction to File Management / File Management Reference

File Access Routines / Manipulating the End-of-File

GetEOF

You can use the GetEOF function to determine the current logical end-of-file of an open file.

FUNCTION GetEOF (refNum: Integer; VAR logEOF: LongInt): OSErr;

refNum

The file reference number of an open file.

logEOF

On output, the logical end-of-file.

DESCRIPTION

The GetEOF function returns, in the logEOF parameter, the logical end-of-file of the specified file.

RESULT CODES

noErr	0	No error
ioErr	-36	I/O error
fnOpnErr	-38	File not open
rfNumErr	-51	Bad reference number
afpAccessDenied	-5000	User does not have the correct access to the file

SEE ALSO

For a description of the logical and physical end-of-file, see the section "File Access Characteristics" on page 1-8.