CANBus Frame not available in QML

[SunilKumar]

I write code to read CAN Bus frame in QT Widget & its working fine.
But now i want switch to develop second application with QML , here I am not receiving CAN BUS Frame. I check m_canDevice.connectedDevice() function its show true but m_canDevice->framesAvailable() return zero.

While i seen candump receiving data, as well as my first widget application also receiving can frames.