How to add/create Splash screen image in Winui3 app

I don't see why m_sc is null

What happens inside LaunchTask is you set a breakpoint at

 m_sc = new SplashScreen();

its not going inside a App.xaml.cs in Mainwindow.cs the value of m_sc showing null value so its giving exception

Is is not possible... If it does not go inside,you did not call the function like I did in App constructor :

        public App()
        {  
            this.InitializeComponent();
            LaunchTask();
        }

Hi
yes i forgot to add i have added now its working but i need it to load before my main window load .here the splashscreen loading through mainwindow

It loads before as I set it in App constructor, before the main window is created in OnLaunched
I remove it after InitializeComponent of MainWindow
It is just that MainWindow is immediately created and displayed if there are not a lot controls inside
Or a Fade In could be added like I added a Fade Out and display the main window after, but it will slow down the loading of the app...
Splash Screens are for apps where main window needs time to be initialized

my main window contains some controls and even the splashscreen loading before mainwondow but after mainwindow loads still i can see the splashscreen fading slowly how can i make it load only before mainwindow?

You can see I have set 5 seconds
You can change to 1 second :

appSplash.HideSplash(1);

or even 0 but it will be destroyed too fast if the initialization of controls is immediate

Hi
Thank you so much its working as expected.

@Castorix31 how to make splash screen size as per window size in ur application its coming entire screen but in my application its displaying small icon before window load.

I set the size mainly in SetPictureToLayeredWindow, based on image size (sizeBitmap)
In my test, I use a .PNG with 800*600, so the window is 800*600...

@Castorix31 Hi Facing one issue in splash screen which u sent i have used same code but splash screen is not getting close when we debugging the code and also when i run the Exe the splash screen remain on desktop its not getting close plz tell me how to close it

The Splash Screen is hidden then destroyed in HideSplash, in Dt_Tick timer

But whe I run from exe the splashscreen not getting destroy.....also in debug with breakpoint the splash screen not getting destroy it destroys when application loads

If you put a Breakpoint before HideSplash, it is normal
It is destroyed from the .exe on my PC, if HideSplash is called...