c++ - Qt5.4/QML: How to determine wether the orientation of the screen is inverted or not -


i'm creating ios video camera app using qt5.4. need determine current orientation of device rotate video in videooutput element.

as can see there's autoorientation property doesn't work expect: if keep switching orientation starts have weird behaviour i.e. setting wrong orientation.

then tried apply rotation based on screen.primaryorientation property: copying function defined in this example, i've created similar version, can find here.

i call every time width or height changes, this:

onwidthchanged: { video.orientation = changeorientation(); } onheightchanged: { video.orientation = changeorientation(); }

however, seems inverted orientations ignored, strange since listed in the documentation.

anyone has idea why it's happening?

update: isolate problem when using autoorientation, there's menu on top of videooutput, menu rowlayout, it's visible if user clicks on menu icon, , if user clicks on menu icon orientation gets messy.

however, in situation invertedportrait not recognized.


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