Jetter JC-120MC, User Manual

Page: 171 / 634

Jetter AG 171
JC-120MC FTP client
Deleting a file
This function lets you remove a file from the file system of a remote network
node.
Function FtpFileRemove(FtpConnection:Handle,
Const Ref ServerFile: String ) :Int;
Description of the function parameters:
Parameter Value Remarks
FtpConnection Handle Value returned by the
function FtpConnect()
ServerFile File name Name of the file to be
removed.
If the returned value is negative, an error has occurred. If the returned value is
0 , the file could not be removed from the file system of the remote network
node.
Return value
0 No error
-1 Invalid handle
-2 Communication error, there is, for example, no response from
FTP server
-3 Error message from FTP server, for example, file does not
exist
In the following cases, the task is not processed further after issuing the
function call:
 The FTP server must first delete the file ServerTestFile.txt . Please note:
This file name serves as an example only.

An error has occurred.
This function is processed in the following steps:
Step Description
1 The controller sends a command to the FTP server that the file
ServerTestFile.txt must be deleted.
2 The FTP server deletes the file ServerTestFile.txt .
3 If ... ... then ...
... no errors have occurred, ... ... the file has been deleted
successfully, the function is
terminated and value 0 is returned.
... errors have occurred, ... the function is terminated and a
negative value is returned.
Introduction
Function declaration
Function parameters
Return value
Operating principle