I created bugreport QTBUG-54261 <https://bugreports.qt.io/browse/QTBUG-54261> for this issue.

Regards
Rogério


On 21/06/16 10:49, Maurice Kalinowski wrote:
Hm.. I thought I caught all the instances of calling from the wrong thread.

Could you please create a bugreport on JIRA, then we can handle it there.

BR,
Maurice


-----Original Message-----
From: Rogerio Nicolau [mailto:[email protected]]
Sent: Tuesday, June 21, 2016 10:54 AM
To: Maurice Kalinowski <[email protected]>;
[email protected]; [email protected]
Subject: Re: [Interest] Assert in QCamera on winrt tablet

Hi,

Apologies, I had thought of it but then forgot to mention the version of Qt.
I am using 5.6.1.

Thanks
Rogério


On 21/06/16 07:58, Maurice Kalinowski wrote:
Hi,

First of all we need to know which version of Qt you are using? I have been
doing quite a lot of update on the camera recently, with most (but not all)
changes being in 5.6.1.
Some are in 5.6.2 and will be available in 5.7.1 as well, hence the question.

BR,
Maurice


-----Original Message-----
From: Interest [mailto:interest-bounces+maurice.kalinowski=qt.io@qt-
project.org] On Behalf Of Rogerio Nicolau
Sent: Monday, June 20, 2016 4:30 PM
To: [email protected]
Subject: [Interest] Assert in QCamera on winrt tablet

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


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