Using Bluetooth protocol with Qt 4

[mostefa]

Hi guys,

I am trying to implement Bluetooth protocol , on target(this target is using RFCOMM protocol),

I know that Qt 5 Implement a bluetooth RFCOMM protocol:

http://doc.qt.io/qt-5/qtbluetooth-module.html

The problem is that my target use only Qt 4 , in QT4 i have not found the implementation of the protocol bluetooth,

Does any one know how to use bluetooth protocol API of Qt5 on Qt4 ?

Or does any one have any idea how to implement RFCOMM protocol on Qt 4?

Thank you!