[Interest] Assert in QCamera on winrt tablet

[Rogerio Nicolau]

Hello all

I am getting the following assert when I call QCamera::start()

ASSERT failure in bool __thiscall QWinRTCameraControl::setFocus(class 
QFlags<enum QCameraFocus::FocusMode>): "The application called an 
interface that was marshalled for a different thread.", file 
qwinrtcameracontrol.cpp, line 1163

This is happening on winrt when using the BackFace camera (on a Dell 
Venue 8 pro tablet), even though when using the FrontFace camera it 
starts fine. Also works fine on Android and iOS.

Does anyone have an idea on what might be happening? Is this something I 
am not doing or could this be an issue with Qt or Windows 10? I also 
wondered if it might be specific to the device, it's the only windows 10 
tablet I have available at the moment.

Thanks
Rogério