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Siebel VB Language Reference > VB Language Reference >
FileAttr Function
This standard VB function returns the file mode or the operating system handle for an open file. Syntax
FileAttr(filenumber, returntype)
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filenumber |
The file number used in the Open statement to open the file |
returntype |
An integer representing the type of information to return |
Returns
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1 |
The file mode of the open file, where
- 1 indicates Input mode
- 2 indicates Output mode
- 8 indicates Append mode
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2 |
The operating system handle of the open file |
Usage
The argument filenumber is the number used in the Open statement to open the file. Example
This example closes an open file if it is open in input or output mode. If open in append mode, it writes a range of numbers to the file. The second subprogram, CreateFile, creates the file and leaves it open. (general) (declarations)
Option Explicit
Declare Sub CreateFile
Sub CreateFile
Rem Put the numbers 1-10 into a file
Dim x as Integer
Open "c:\temp001" for Output as #1
For x = 1 to 10
Write #1, x
Next x
End Sub
Sub Button_Click
Dim filemode as Integer
Dim attrib as Integer
Call CreateFile
attrib = 1
filemode = FileAttr(1,attrib)
If filemode = 1 or 2 then
Close #1
Else
For x = 11 to 15
Write #1, x
Next x
Close #1
End If
Kill "c:\temp001"
End Sub
See Also
GetAttr Function
Open Statement
SetAttr Statement
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