OpenFile()

Summary

Opens a text or binary file on disk.

 

Syntax

file = OpenFile(string file_name, string mode)

 

Argument	Contents
file_name	The full path and name of the file to be opened
mode	The mode in which the file is opened, as shown below

 

Mode	Meaning
r	Open text file for reading
w	Create text file for writing, or truncate to zero length
a	Append: open text file or create for writing at end of file
rb	Open binary file for reading
wb	Create binary file for writing, or truncate to zero length
ab	Append: open binary file for writing at end of file
r+	Open text file for update (reading and/or writing)
w+	Create text file for update, or truncate to zero length
a+	Append: open text file or create for update, writing at end of file
rb+	Open binary file for update (reading and/or writing)
wb+	Create binary file for update, or truncate to zero length
ab+	Append: open binary file or create for update, writing at end of file

 

Returns

A file handle.

 

Example

fptr = OpenFile("report.txt", "w")

WriteLine(fptr, "This is the first line of the report")

CloseFile(fptr)

 

Error Codes

Error Type	Meaning
Error	Invalid access mode
NotFound	File does not exist or could not be opened

 

See Also

Function	Summary
CloseFile()	Closes a file