[Interest] Qt Mac OS - App crashes when opening camera - Namespace TCC, Code 0x0

[Jason H]

I've had this working before... But have not tried it on a recent version of Qt. You need a plist entry, which I thought is how you get the permission request. It's just like in iOS. 

> Sent: Tuesday, December 17, 2019 at 11:53 AM
> From: "Nuno Santos" <nunosantos at imaginando.pt>
> To: "interestqt-project.org" <interest at qt-project.org>
> Subject: [Interest] Qt Mac OS - App crashes when opening camera - Namespace TCC, Code 0x0
>
> Hi,
> 
> I’m developing an application that uses camera. I’m having a crash when the app is not opened by Qt Creator:
> 
> Crashed Thread:        2  Dispatch queue: com.apple.root.default-qos
> 
> Exception Type:        EXC_CRASH (SIGABRT)
> Exception Codes:       0x0000000000000000, 0x0000000000000000
> Exception Note:        EXC_CORPSE_NOTIFY
> 
> Termination Reason:    Namespace TCC, Code 0x0
> 
> Thread 2 Crashed:: Dispatch queue: com.apple.root.default-qos
> 0   libsystem_kernel.dylib        	0x00007fff6375ebea __abort_with_payload + 10
> 1   libsystem_kernel.dylib        	0x00007fff637604f3 abort_with_payload_wrapper_internal + 80
> 2   libsystem_kernel.dylib        	0x00007fff63760525 abort_with_payload + 9
> 3   com.apple.TCC                 	0x00007fff5b8b95a7 __CRASHING_DUE_TO_PRIVACY_VIOLATION__ + 163
> 
> 
> After googling around I’ve found a lot of people with the same problem but no solutions.
> 
> Instead of crashing, it should be popping a authorisation request, which I have already given in the past for the same application. The workaround I’ve found was to go to Security & Privacy and disallow/allow the app for camera access. 
> 
> I want to avoid this experience to the end user. A regular user will see this as an app crash and will not have developer skills to track down the problem by itself.
> 
> Has anyone stumbled on a similar problem before?
> 
> How do we force the system to check for authorisation and request it again if necessary, avoiding the crash?
> 
> Thanks!
> 
> Best regards,
> 
> Nuno_______________________________________________
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