FOpen

Syntax

FOpen(filename$, accessmode%, sharemode%)

Description

Opens a text- or binary file using the special Fast I/O Functions. These special function all begin with a capital ‘F’. Instead of assigning a filenumber to a file to be opened (like with the Open statement), this function returns a DOS handle, which is needed for further use with the other Fast I/O Functions.

NOTE: If the file does not yes exist, you should first use the FCreate statement.

Parameter	Description
Filename	The name of the file to beaccessed.
accessmode%	Files can be opened in the following modes: 0 = Open file for reading only 1 = Open file for writing only 2 = Open file for reading and writing.
sharemode%	0 = Deny sharing access (compatibility mode) 1 = Deny read/write access 2 = Deny write access 3 = Deny read access 4 = Deny none (full share mode)

See Also

FCreate, FClose, WhichError.

Example

 
Sub Main
   Dim Hnd%, rec&
   Hnd% = FOpen(“C:\MYDBASE.DAT”, 0, 4) 
				'read-only, shared
   Debug.Print FLof(Hnd%) 
   FClose Hnd%
End Sub