<PackageReference Include="System.Security.Permissions" Version="10.0.0-rc.1.25451.107" />

MediaPermissionAttribute

Allows security actions for MediaPermission to be applied to code using declarative security.
namespace System.Security.Permissions { [Obsolete("Code Access Security is not supported or honored by the runtime.", DiagnosticId = "SYSLIB0003", UrlFormat = "https://aka.ms/dotnet-warnings/{0}")] [AttributeUsage(AttributeTargets.Assembly | AttributeTargets.Class | AttributeTargets.Struct | AttributeTargets.Constructor | AttributeTargets.Method, AllowMultiple = true, Inherited = false)] public sealed class MediaPermissionAttribute : CodeAccessSecurityAttribute { public MediaPermissionAudio Audio { get { return MediaPermissionAudio.AllAudio; } set { } } public MediaPermissionVideo Video { get { return MediaPermissionVideo.AllVideo; } set { } } public MediaPermissionImage Image { get { return MediaPermissionImage.AllImage; } set { } } public MediaPermissionAttribute(SecurityAction action) : base(action) { } public override IPermission CreatePermission() { return new MediaPermission(); } } }