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Diffstat (limited to 'examples/bluetooth/btchat/doc/src/btchat.qdoc')
| -rw-r--r-- | examples/bluetooth/btchat/doc/src/btchat.qdoc | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/examples/bluetooth/btchat/doc/src/btchat.qdoc b/examples/bluetooth/btchat/doc/src/btchat.qdoc index 7469a5af..aa0b189b 100644 --- a/examples/bluetooth/btchat/doc/src/btchat.qdoc +++ b/examples/bluetooth/btchat/doc/src/btchat.qdoc @@ -97,6 +97,34 @@ \snippet btchat/chatserver.cpp stopServer + \section1 Service Discovery + + Before connecting to the server, the client needs to scan the nearby + devices and search for the device that is advertising the chat service. + This is done by the \c RemoteSelector class. + + To start service lookup, the \c RemoteSelector creates an instance of + \l QBluetoothServiceDiscoveryAgent and connects to its signals. + + \snippet btchat/remoteselector.cpp createDiscoveryAgent + + An UUID filter is set, so that the service discovery only shows the devices + that advertise the needed service. After that a + \l {QBluetoothServiceDiscoveryAgent::}{FullDiscovery} is started: + + \snippet btchat/remoteselector.cpp startDiscovery + + When a matching service is discovered, a + \l {QBluetoothServiceDiscoveryAgent::}{serviceDiscovered()} signal is + emitted with an instance of \l QBluetoothServiceInfo as a parameter. This + service info is used to extract the device name and the service name, + and add a new entry to the list of discovered remote devices: + + \snippet btchat/remoteselector.cpp serviceDiscovered + + Later the user can select one of the devices from the list and try to + connect to it. + \section1 Chat Client The chat client is implemented by the \c ChatClient class. |