AppDomain.CurrentDomain.SetThreadPrincipal problem

To cut whole thing short, here is the WPF startup and probably where the problem lies. protected override void OnStartup(StartupEventArgs e) { CustomPrincipal customPrincipal = new CustomPrincipal(); AppDomain.CurrentDomain.SetThreadPrincipal(customPrincipal); //Show main window and inject dependencies AuthViewModel viewModel = new AuthViewModel(new AuthenticationService()); IMainViews mainWindow = new MainWindow(viewModel); mainWindow.Show(); } I set AppDomain.CurrentDomain.SetThreadPrincipal(customPrincipal) where customPrincipal is my own…

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can you please help me to solve this using while loop im a beginner in python

Consider the string ‘s’ contains the value ‘Great things never come from comfort zones’. Determine the no. of vowels present in it, using the “while” loop. Store the number in the variable ‘count’, and print it. s=”Great things never come from comfort zones” vowels=[“a”,”e”,”i”,”o”,”u”] count=0 while chars in s: if chars in vowels: count=count+1 i…

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Can’t use laptop webcam on Ubuntu 18.04 running on VirtualBox VM with Windows 10 as host OS

I’m running the latest stable version of VirtualBox (6.0.14) and I have installed the corresponding extension pack so that while I’m running the VM I can click on the VM menu Devices -> Webcams -> “MyWebcam”. When I do this, /dev/video0 and /dev/video1 are created, but when I try using them either with cheese or…

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