[Qt-creator] Debugging app using Camera on MacOS?

[Jason H]

Ok, I have that rule too, but does it re-invoke make after updating? It seems to continue to process the old, out of date Makefile?
After 
   $(QMAKE) -o Makefile ../qmake_widgets/qmake_widgets.pro ….
It either needs to say something like:
   Makefile updated; run make again
or:
   make
So:
    $(QMAKE) -o Makefile ../qmake_widgets/qmake_widgets.pro ….
    make

True there is some risk of an infinite loop if the make `touch`es the Makefile, to maybe there is a way to compare hashes?



> Sent: Wednesday, May 19, 2021 at 3:34 AM
> From: "Eike Ziller" <Eike.Ziller at qt.io>
> To: "Jason H" <jhihn at gmx.com>
> Cc: "qt-creator" <qt-creator at qt-project.org>
> Subject: Re: [Qt-creator] Debugging app using Camera on MacOS?
>
> 
> 
> > On May 18, 2021, at 18:58, Jason H <jhihn at gmx.com> wrote:
> > 
> >  
> > So I am dumb. I forgot that among all those popups QtCreator gives you when you save the .pro, running qmake is not one of them
> > I *thought* running  qmake would have been automatic when the .pro changes. (Or that the Makefile would pick up the .pro was modified and run qmake automatically) but that doesn't seem to be the case?
> > 
> 
> The Makefile _should_ have a rule for re-running qmake when the .pro file is changed. My dummy project has
> 
> Makefile: ../qmake_widgets/qmake_widgets.pro ……
> ...
> $(QMAKE) -o Makefile ../qmake_widgets/qmake_widgets.pro ….
> 
> Which is tricky because while running “make”, the Makefile is changed…. but it is supposed to work.
> 
> Br, Eike
> 
> > 
> > Sent: Tuesday, May 18, 2021 at 11:53 AM
> > From: "Jason H" <jhihn at gmx.com>
> > To: "Jason H" <jhihn at gmx.com>
> > Cc: "qt-creator" <qt-creator at qt-project.org>
> > Subject: Re: [Qt-creator] Debugging app using Camera on MacOS?
> > Accidentally only replied to Lars before, but for the list, for throughness:
> > Thanks Lars.
> >  
> > I have added in the .pro
> > mac {
> >     QMAKE_INFO_PLIST = macos/Info.plist
> > }
> > 
> >  
> > And the plist was copied from the build directory, added the key/string pair:
> > <key>NSCameraUsageDescription</key>
> > <string>Reads Barcodes</string>
> > 
> > And still no joy. The Info.plist in the package contents is not the one with the added key.
> > I tried mac, macx, and macos for the platform in .pro. QtCreator shows int he Project pane:
> > Other Files /
> > .. v macos
> > .... Info.plist 
> >  
> > So the file is there. It's just not being used. I have NOT set CONFIG -= app_bundle. Looking at the compile output, Info.plist does not appear in the compile output pane.
> >  
> > It seems that something else is needed than QMAKE_INFO_PLIST? 
> >  
> > ...
> > ANSWER: Yes it needs a manual copy (currently). Then I filed  https://bugreports.qt.io/browse/QTBUG-93832
> >  
> >  
> > Sent: Tuesday, May 18, 2021 at 11:25 AM
> > From: "Jason H" <jhihn at gmx.com>
> > To: "Lars Knoll" <lars.knoll at qt.io>
> > Cc: "qt-creator" <qt-creator at qt-project.org>
> > Subject: Re: [Qt-creator] Debugging app using Camera on MacOS?
> > I got it working with a manual copy, but also filed:
> > https://bugreports.qt.io/browse/QTBUG-93832
> >  
> >  
> >  
> > Sent: Tuesday, May 18, 2021 at 4:40 AM
> > From: "Lars Knoll" <lars.knoll at qt.io>
> > To: "Eike Ziller" <Eike.Ziller at qt.io>
> > Cc: "Jason H" <jhihn at gmx.com>, "qt-creator" <qt-creator at qt-project.org>
> > Subject: Re: [Qt-creator] Debugging app using Camera on MacOS?
> > On 17 May 2021, at 18:50, Eike Ziller <Eike.Ziller at qt.io> wrote:
> > On May 17, 2021, at 16:27, Jason H <jhihn at gmx.com> wrote:
> > 
> > Here is the question (asked by someone else) (Note this is specific to *debugging* the app.)
> > https://stackoverflow.com/questions/60459036/how-do-i-debug-an-app-on-the-mac-that-accesses-the-camera
> > with no good resolution.
> > 
> > It seems the way QtC is launching the debugger is running afoul of the NSCameraUsageDescription. Has anyone else figured out a way around this?
> > I'm wondering if the Info.plist needs to be applied to LLDB somehow?
> > 
> > I don’t quite understand if this is a Qt Creator specific issue or not.
> > 
> > If the issue is that Qt Creator starts lldb, and lldb starts the app, maybe running the app without debugging and then Debug > Start debugging > Attach to running application helps.
> >  
> > I’ve been doing some debugging of the camera on macOS lately. You do need to add the Info.plist with NSCameraUsageDescription/NSMicrophoneUsageDescription to your app to allow camera/microphone access. 
> >  
> > After that, you might get a confirmation dialog to allow access on first launch. Once that’s confirmed, you should be able to debug the app just fine. At least it does work for me using Qt Creator.
> >  
> > Cheers,
> > Lars
> >  
> > _______________________________________________ Qt-creator mailing list Qt-creator at qt-project.org https://lists.qt-project.org/listinfo/qt-creator
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> 
> -- 
> Eike Ziller
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> 
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