Demonstrates a simple message system using D-Bus.
Ping Pong is a command-line example that demonstrates the basics of Qt D-Bus. A message is sent to another application and there is a confirmation of the message.
To run the example from Qt Creator, open the Welcome mode and select the example from Examples. For more information, see Qt Creator: Tutorial: Build and run.
Run the pong application and run the ping application with the message as the argument.
$ ./pong &
$ ./ping Hello
Reply was: ping("Hello") got called
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