<PackageReference Include="System.Drawing.Common" Version="10.0.0-preview.5.25277.114" />

Windows.Win32.Graphics.GdiPlus.ImageLockMode

namespace Windows.Win32.Graphics.GdiPlus { internal enum ImageLockMode { ImageLockModeRead = 1, ImageLockModeWrite = 2, ImageLockModeUserInputBuf = 4 } }