IBM Lotus Symphony


Lof Function [Runtime]

Returns the size of an open file in bytes.

Syntax:

Lof (FileNumber)

Return value:

Long

Parameters:

FileNumber: Any numeric expression that contains the file number that is specified in the Open statement.

Tip Icon To obtain the length of a file that is not open, use the FileLen function.

Error Codes

5 Invalid procedure call

52 Bad file name or number

Example:

Sub ExampleRandomAccess

Dim iNumber As Integer

Dim sText As Variant REM must be a Variant

Dim aFile As String

aFile = "c:\data.txt"

iNumber = Freefile

Open aFile For Random As #iNumber Len=32

Seek #iNumber,1 REM Position at start

Put #iNumber,, "This is the first line of text" REM Fill with text

Put #iNumber,, "This is the second line of text"

Put #iNumber,, "This is the third line of text"

Seek #iNumber,2

Get #iNumber,,sText

Print sText

Close #iNumber

iNumber = Freefile

Open aFile For Random As #iNumber Len=32

Get #iNumber,2,sText

Put #iNumber,,"This is a new line of text"

Get #iNumber,1,sText

Get #iNumber,2,sText

Put #iNumber,20,"This is the text in record 20"

Print Lof(#iNumber)

Close #iNumber

end sub


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