Lof Function

Returns the size of an open file in bytes.


Lof (FileNumber)

Return value:



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

Тасвири мадад

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

Error codes:

5 Invalid procedure call

52 Invalid file name or file number


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