https://learn.microsoft.com/en-us/uwp/api/windows.ui.xaml.media.imaging.writeablebitmap.-ctor?view=winrt-28000
WriteableBitmap(Int32, Int32) Constructor (Windows.UI.Xaml.Media.Imaging) - Windows apps |...
Initializes a new instance of the WriteableBitmap class.
constructorwindowsuixamlmedia
https://learn.microsoft.com/en-us/windows/windows-app-sdk/api/winrt/microsoft.ui.xaml.media.imaging.writeablebitmap?view=windows-app-sdk-2.0
WriteableBitmap Class (Microsoft.UI.Xaml.Media.Imaging) - Windows App SDK | Microsoft Learn
Provides a BitmapSource that can be written to and updated.
windows appclassmicrosoftuixaml