How to set Bluetooth to on in Qt

[atonical]

I have an application, that requires bluetooth to send over some bytes using bluetooth. I want to app to turn on the bluetooth setting automatically when the app is launched. How do I do that?

[gnuton]

Hi,
You can use BlueZ DBus Adapter to switch on/off Bluetooth.

Here the steps to switch on the device:
1. Get the Available adapter with ListAdapter method
/home/developer $ dbus-send --system --print-reply --dest=org.bluez / org.bluez.Manager.ListAdapters
method return sender=:1.200 -> dest=:1.362 reply_serial=2
array [
object path "/org/bluez/1785/hci0"
]

2. Switch on bluetooth adapter with:
dbus-send --system --type=method_call --dest=org.bluez /org/bluez/1785/hci0 org.bluez.Adapter.SetProperty string:Powered variant:boolean:true


NOTE: In Qt you have to use QDBus to call these methods [1]
List of Methods supported by Bluez Adaptor can be found at the following page: [2]

[1] http://techbase.kde.org/Development/...a_D-Bus_Method
[2] http://maemo.org/api_refs/5.0/beta/bluez/adapter.html

[atonical]

Is there a way to call it with Qt Mobility APIs?

[hhrhhr]

maybe this help:

QBluetoothLocalDevice Class Reference
Bluetooth Scanner Example

QBluetoothLocalDevice *localDevice;
// ...
localDevice = new QBluetoothLocalDevice;
// ......
// enable device
localDevice->powerOn();
// disable device
localDevice->setHostMode(QBluetoothLocalDevice::HostPoweredOff);

[atonical]

Thanks all for the suggestions. This works.

maybe this help:

QBluetoothLocalDevice Class Reference
Bluetooth Scanner Example

QBluetoothLocalDevice *localDevice;
// ...
localDevice = new QBluetoothLocalDevice;
// ......
// enable device
localDevice->powerOn();
// disable device
localDevice->setHostMode(QBluetoothLocalDevice::HostPoweredOff);