FileSystem.LOF(Int32) Method
Definition
Important
Some information relates to prerelease product that may be substantially modified before it’s released. Microsoft makes no warranties, express or implied, with respect to the information provided here.
Returns the size, in bytes, of a file opened by using the FileOpen function. The My feature gives you better productivity and performance in file I/O operations than LOF. For more information, see FileSystem.
public:
static long LOF(int FileNumber);public static long LOF (int FileNumber);static member LOF : int -> int64Public Function LOF (FileNumber As Integer) As LongParameters
- FileNumber
- Int32
Required. An integer that contains a valid file number.
Returns
The size, in bytes, of a file opened by using the FileOpen function. The My feature gives you better productivity and performance in file I/O operations than LOF.
Exceptions
File mode is invalid.
Examples
This example uses the LOF function to determine the size of an open file. This example assumes that TestFile is a text file that contains sample data.
Dim length As Long
FileOpen(1, "C:\TESTFILE.TXT", OpenMode.Input) ' Open file.
length = LOF(1) ' Get length of file.
MsgBox(length)
FileClose(1) ' Close file.
Remarks
Use the FileLen function to obtain the length of a file that is not open.
