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To use a Distinct ActiveX control in a Borland® Delphi™ application,
the application must include definitions of the actions and errors for the control. These
definitions are listed in the D_*.PAS file (where * represents the control name) shipped
with the ActiveX controls. For example, the D_FTP.PAS file contains the definitions for
the FTP control. This file must be included in the module that uses the control. Next, the
Distinct ActiveX control must be imported to Delphi. This is accomplished by choosing the
Import ActiveX Control command from the Component menu. Choose the Distinct ActiveX
Control of interest from the list of registered ActiveX controls. After clicking on the
Install button, Delphi displays an Install dialog box. Click OK in the Install dialog.
Click Yes in the Confirm dialog. Click OK in the Information dialog and then click Yes in
the Package dialog. Delphi will create a wrapper class for this ActiveX control. The
application must create an instance of this class to access the properties, events and
methods.
Notes for Delphi 4.0
If you are using the Distinct NNTP ActiveX control, the Set method
will be renamed to Set_ in the wrapper class since Set is a keyword in Delphi 4.0.
Similarly the To and Result properties of some ActiveX controls will be renamed to To_
and Result_ in the wrapper class due to them being keywords in Delphi4.
Notes for Delphi 3.01:
- The Delphi Internet and Internet Solutions packages also contain HTTP, POP,
SMTP & NNTP controls that will conflict with the Distinct ActiveX controls. Before
importing the Distinct controls go to the Components menu and select Install Packages.
Remove the two packages, then proceed to install the Distinct components.
- If you are using the Distinct NNTP ActiveX control, the Set method will be
renamed to Set_ in the wrapper class since Set is a keyword in Delphi 3.0.
Similarly, if you are using the Distinct SMTP ActiveX control or the MIME ActiveX control,
the To property will be renamed to To_ in the wrapper class (since To is
also a Delphi 3.0 keyword).
For
Delphi 2.0 users
To use a Distinct ActiveX control in a Delphi 2.0
application, the application must include definitions of the actions and errors for the
control. These definitions are listed in the D_*.PAS file (where * represents the control
name) shipped with the ActiveX controls. For example, the D_FTP.PAS file contains the
definitions for the FTP control. This file must be included in the module that uses the
control. Next, the Distinct ActiveX control must be added to Delphi 2.0. This is
accomplished by choosing the Install command from the Component menu of Delphi 2.0 and
clicking the OCX button. Choose the Distinct ActiveX Control of interest from the list of
custom controls and enter the unit and class name. After clicking OK, Delphi takes you
back to the Install dialog box. Here, choose the unit and class name that you added from
the Component Class List and click on the OK button. Delphi 2.0 will create a wrapper
class for this custom control. The application must create an instance of this class to
access the properties, events and methods.
Note:
If you are using the Distinct NNTP ActiveX control, the Set
method will be renamed to Set_ in the wrapper class since Set is a keyword
in Delphi 2.0. Similarly, if you are using the Distinct SMTP ActiveX control or the MIME
ActiveX control, the To property will be renamed to To_ in the wrapper class
(since To is also a Delphi 2.0 keyword)
How to
Run the Sample Programs in Delphi
The following instructions illustrate how to load the ftp
client sample in the various Delphi programming environments.
For Delphi 4 and 3.01:
- Open the Delphi programming environment.
- Import the ActiveX control that the sample will use. To do this, select Import ActiveX
Control from the Component menu. Choose the Distinct FTP Client ActiveX Control from the
list of Registered controls. Click on the Install button. Click OK in the Install dialog
box. Click Yes in the Confirm dialog. Click OK in the Information dialog. Then click Yes
in the Package dialog.
- Choose Open from the File menu. Use the Browse feature to locate the
…samplesdelphi4ftp directory and load the ftpclnt.drp project file.
- From the Project menu select Compile.
- Run the sample by selecting Run from the Run menu.
For Delphi 2.0 users:
- Open the Delphi programming environment.
- The Install Components window is displayed. Choose the Add option.
- Browse for the …samplesdelphi2ftpclnt folder and load the ftpclnt.pas project
file. Choose OK. This loads the wrapper class for the FTP control that was created for
this sample.
- Click on Open in the File Menu and load the ftpclnt.dpr file in the
samplesdelphi2ftpclnt folder
- To run the sample click on Run in the Run Menu or press F9.
Where to find the Delphi samples you need
Samples are stored in subfolders below each Delhi folder, that is, Delphi2,
Delphi3 or Delphi4. Below we describe what each sample does. The folder column shows the
subfolder name that contains one or more samples and the ActiveX control whose use is
illustrated by the sample.
| Folder |
Included Samples |
| Finger (Finger ActiveX) |
The finger sample program illustrates how to include
Finger functionality into an application using the Finger ActiveX control. |
| Firewall (Firewall ActiveX) |
There are two samples in this folder each of which illustrate
how to program your application to handle connections through SOCKS firewalls: Daytime:
This shows you how to make a connection to a remote host through a firewall and how to
retrieve the hosts reply.
Send: This sample shows how to connect to a host through a firewall server to
send a message. |
| FTP (FTP Client ActiveX) |
This ftpclnt sample program shows you how to make a
connection to the FTP server, send FTP commands and close your FTP connection. It
demonstrates much of the functionality of the FTP client ActiveX control, illustrating the
functions as menu items to simplify the code breakdown and allow the programmer to quickly
find some sample code for a particular method or property. This sample also illustrates
how to connect to an FTP server through a SOCKS firewall proxy. |
| FTPSRV (FTP Server ActiveX) |
This ftpsrv sample program shows you how to integrate
an FTP server that is capable of creating and modifying a client database, servicing
several clients (up to 64) simultaneously and providing statistics on client activity. It
demonstrates much of the functionality of the FTP server ActiveX control, illustrating the
functions through a simple interface, user database structure and menu items to simplify
the code breakdown and allow the programmer to quickly find some sample code for a
particular method or property. This program illustrates how to write a custom FTP server
application using the FTP Server ActiveX control. |
| ICMP (ICMP ActiveX) |
Two samples are supplied to illustrate the use of the
Internet Control Message Protocol (ICMP) to illustrate how to build in diagnostic tools
directly into your applications to facilitate support. Ping: The Ping sample uses
the ICMP ActiveX control to get an echo reply from a host. This is an
extremely helpful tool to build in to any networking application (Internet or Intranet.)
Tracrt: The Tracert sample shows how to trace the route a packet takes to the
destination host. This is very useful for diagnosing networking issues in Internet-based
applications. |
| MIME (Mime, SMTP and POP ActiveXs) |
This folder contains three subfolders each with a sample
application: Mime: The Mime program shows how to encode and decode files, and how
to create and extract messages with attachments
SmtpMime: The SmtpMime sample illustrates the combined use of the SMTP and MIME
ActiveX controls. It illustrates how to create an SMTP plain text message and attach MIME
or UUencoded files. It then emails the messages using SMTP. You need to have a valid SMTP
server to run this sample.
PopMime: The SmtpMime sample illustrates the use of the Mime ActiveX in
conjunction with the POP ActiveX. It shows you how to connect to a POP3 server, download
and extract MIME encoded or UUencoded mail messages. |
| NNTP (NNTP ActiveX) |
The nntpclnt sample program illustrates how to access
a News server using the NNTP ActiveX control. The NNTP sample shows how to read, post,
position and list news articles and how to navigate news groups. It also illustrates how
to connect to the remote server through a firewall proxy. |
| POP (POP ActiveX) |
The popclnt sample program shows you how to make a
connection to the POP 2 or POP 3 server, send POP commands, download messages, and close
your POP connection. It demonstrates much of the functionality of the POP client ActiveX
control, illustrating the functions as menu items to simplify the code breakdown and allow
the programmer to quickly find some sample code for a particular method or property. |
| RAS (RAS ActiveX - this includes SLIP/PPP support) |
The RAS sample program illustrates how to control the
dialup and hang-up process to a remote server using the RAS ActiveX control. It allows
RAS, SLIP or PPP connections. This sample also shows how to do phonebook management. It
illustrates all the features included in the ActiveX for the creation and updating of new
phone book entries. |
| RCP (RCP ActiveX) |
The rcpclnt program illustrates how to include remote
copy operations into an application using the RCP ActiveX control. This sample shows how
to copy files between the local and remote machine, or from one remote machine to another.
It also illustrates how to do recursive file copying. The sample also allows you to create
a new file and save it to a remote file as well as view the contents of a remote file. |
| RLIB (RLIB ActiveX) |
The rlibclnt program illustrates how to include remote
command execution into an application using the RLIB ActiveX control. The sample
demonstrates the use of remote execution (Rexec), remote shell(rsh) and remote
login(rlogin). Note: In order to be able to connect using RLIB (RSHELL &
REXEC) you must make the PC running RLIB client, a trusted host on the Unix machine that
you are trying to connect. |
| Server (TCP Server ActiveX) |
This folder contains two sub folders one with a client
application and one with a server application. They are intended to be run together to
illustrate how a server application handles a client call: Tcpclnt: This is a
simple windows sockets application that makes a connection to a TCP server and sends data
to the server
Tcpsrv: This is a very simple server application that can be put in listen mode
to accept TCP connections and data sent from the tcpclnt application. For simplicity this
sample has only two display windows and accepts two concurrent connections. You can modify
the sample to accept more connections. |
| SMTP (SMTP ActiveX) |
The smtpclnt sample program shows you how to make a
connection (including connecting through a SOCKS firewall server) to the SMTP server, send
SMTP commands and mail, and close your SMTP connection. It demonstrates much of the
functionality of the SMTP client ActiveX control, illustrating the functions as menu items
to simplify the code breakdown and allow the programmer to quickly find some sample code
for a particular method or property. |
| Telnet (Telnet ActiveX) |
The telnet sample program illustrates how to include
Telnet type login capabilities into an application. It establishes a telnet connection
(with the option of establishing this through a SOCKS firewall), allows you to send telnet
commands and disconnects from the server. |
| TFTP (TFTP ActiveX) |
The tftpclnt sample program illustrates how to include
TFTP file transfer functionality into an application using the TFTP ActiveX control. It
demonstrates how to copy files between the local and remote machine, or from one remote
machine to another. |
| VT220 (VT220 ActiveX) |
The VT220 sample program illustrates how to include
complete VT220 terminal emulation into an application using the VT220 ActiveX control.
This sample shows how to manage and customize configurations, how to capture data from the
remote terminal, and how to map the keyboard. |
| WhoIs (WhoIs ActiveX) |
This program illustrates how to include WhoIs functionality
into an application. |
| Windows Sockets (Windows Sockets ActiveX) |
Daytime: The daytime sample program
illustrates how make a UDP or TCP connection to the remote host and retrieve the
reply from the host.
Message: This folder contains two programs recv and send that
are intended to work together to illustrate how to write the client and server side
of a TCP connection using the Windows Sockets control.
Resolve: The resolve program illustrates how to resolve a host
name to an internet address, or an internet address to a host name using the
Windows Sockets ActiveX control. |
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