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MediaPermissionAttribute Class

Allows security actions for MediaPermission to be applied to code using declarative security. This class cannot be inherited.

Namespace: System.Security.Permissions
Assembly: WindowsBase (in windowsbase.dll)

[AttributeUsageAttribute(AttributeTargets.Assembly|AttributeTargets.Class|AttributeTargets.Struct|AttributeTargets.Constructor|AttributeTargets.Method, AllowMultiple=true, Inherited=false)] 
public sealed class MediaPermissionAttribute : CodeAccessSecurityAttribute
/** @attribute AttributeUsageAttribute(AttributeTargets.Assembly|AttributeTargets.Class|AttributeTargets.Struct|AttributeTargets.Constructor|AttributeTargets.Method, AllowMultiple=true, Inherited=false) */ 
public final class MediaPermissionAttribute extends CodeAccessSecurityAttribute
AttributeUsageAttribute(AttributeTargets.Assembly|AttributeTargets.Class|AttributeTargets.Struct|AttributeTargets.Constructor|AttributeTargets.Method, AllowMultiple=true, Inherited=false) 
public final class MediaPermissionAttribute extends CodeAccessSecurityAttribute
You cannot use this managed class in XAML.

MediaPermissionAttribute controls the ability for audio, image, and video media to work in a partial-trust Windows Presentation Foundation (WPF) application. The scope of the declaration that is allowed depends on the SecurityAction that is used.

The security information declared by a security attribute is stored in the metadata of the attribute target and is accessed by the system at run time. Security attributes are used only for declarative security. For imperative security, use the corresponding permission class, MediaPermission.

The following example shows how to demand that the calling code has unrestricted MediaPermissionAudio at link time. Demands are typically made in managed libraries (DLLs) to help protect methods or classes from potentially harmful code.

[MediaPermissionAttribute(SecurityAction.Demand, Audio = MediaPermissionAudio.AllAudio)]

System.Object
   System.Attribute
     System.Security.Permissions.SecurityAttribute
       System.Security.Permissions.CodeAccessSecurityAttribute
        System.Security.Permissions.MediaPermissionAttribute

Any public static (Shared in Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.

Windows 98, Windows Server 2000 SP4, Windows Millennium Edition, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition

The Microsoft .NET Framework 3.0 is supported on Windows Vista, Microsoft Windows XP SP2, and Windows Server 2003 SP1.

.NET Framework

Supported in: 3.0

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