Open Err
 
Opens standard input and standard error as a file.

Syntax

Open Err [for mode] As [#]filenum As Integer

Usage

Open Err [for mode] as [#]filenum
or
result = Open Err( [for mode] as [#]filenum )

Parameters

mode
Ignored.
filenum
An unused file number.

Return Value

Zero is returned if Open Err completed successfully, otherwise a non-zero value is returned to indicate failure.

Description

This command opens stdin to read from and stderr to write to the console allowing read and write operations with normal file commands.

The normal console commands, such as Color and Locate, do not work in this mode, because they do not accept a file number.

The [For Input|Output] mode is allowed for compatibility, but is ignored.

Example

Dim a As String
Open Err For Input  As #1
Print #1,"Please write something and press ENTER"
Line Input #1, a 
Print #1, "You wrote"; a
Close
Sleep


Differences from QB

  • New to FreeBASIC

See also