User's Guide
The first thing you need to accomplish as a DDE client is
to create the DDE communication connection to the server. Do this by
connecting the Window part's aboutToOpenWidget event to the
DDE Client part's connect action. Connect the DDE
Client part's item_string attribute to the Client
Text part's object attribute. Now, whenever the DDE
Client part receives a broadcast for item_string from the server,
it will update the Text part with the string received from the server.
Save your work and then test it as follows:
- Type some text in the Server Text part. The text will
appear, keystroke by keystroke, in the Client Text part.
- Type some text in the Client Text part. The text will
appear, keystroke by keystroke, in the Server Text part.
This happens for two reasons. First, DDE is a two-way communication
vehicle. Second, because the connections between the text parts and the
DDE parts are not read-only, the DDE Client part updates the DDE Server part
whenever the object attribute of the Client Text part
changes.
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