The client application has three main components:

• User interface
• Proxy objects
• Connection object

The client application contains all of the windows and menus required to interact with the business user. In addition, the client application has a proxy object for each remote object provided by the server application.

To allow a client application to function in a distributed environment, you need to connect to a server application. Connecting to a server application is very similar to connecting to a database. To establish the connection, you use the connection object, which is a nonvisual object that works like the transaction object.

 To connect to a server application:

1. Create a connection object

myconnect = create connection

2. Specify the connection driver

myconnect.driver="WinSock"

3. Specify the server name

myconnect.location = "SERVER01"

4. Specify the server application

myconnect.application="dpbserv"

5. Connect to the server application

myconnect.ConnectToServer()

6. Create a local proxy for the remote object

ruo = create remoteobject1

7. Instantiate the remote object on the server

ruo.SetConnect(myconnect)

8. Invoke a method associated with the remote object

result=ruo.method1(parm)

Unlike the transaction object, the connection object is not a built-in global object. You need to declare a variable of type connection. Typically, you will want this variable to be global.