I am a novice in QT programming and require some help to modify the heart listener BLE code (http://doc.qt.io/qt-5/qtbluetooth-he...r-example.html).
Basically, my task is to connect to a specific BLE device (I would like to select the device at the back-end, unlike the way it is presented in the example). After establishing the connection, I want to do the exact same thing which is presented in the code, i.e. filter the heart rate service and capture the heart rate measurement characteristic.
Could anyone please suggest if it is possible to have a UI to display only the plot of the data that is received through the heart rate characteristic and perform all the other operations, i.e. connecting to the device, filtering the required service and the specific characteristic from the device back-end.

Also, I tried (and still trying) reading & understanding the code but it is very difficult to understand the part that is for display.

Thank You.

System Info: Ubuntu 14.01, Bluez 4.101