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MediaPermission Class

.NET Framework 4

The MediaPermission describes a set of security permissions that controls the ability for audio, image, and video media to work in a partial-trust Windows Presentation Foundation (WPF) application.

System.Object
  System.Security.CodeAccessPermission
    System.Security.Permissions.MediaPermission

Namespace:  System.Security.Permissions
Assembly:  WindowsBase (in WindowsBase.dll)
XMLNS for XAML: Not mapped to an xmlns.
C#
C++
F#
VB
Copy 
[SerializableAttribute]
public sealed class MediaPermission : CodeAccessPermission, 
	IUnrestrictedPermission
XAML Object Element Usage
Copy 
<MediaPermission .../>

The MediaPermission type exposes the following members.

  Name Description
Public method MediaPermission() Initializes a new instance of the MediaPermission class.
Public method MediaPermission(MediaPermissionAudio) Initializes a new instance of the MediaPermission class by specifying the audio permission level.
Public method MediaPermission(MediaPermissionImage) Initializes a new instance of the MediaPermission class by specifying the image permission level.
Public method MediaPermission(MediaPermissionVideo) Initializes a new instance of the MediaPermission class by specifying the video permission level.
Public method MediaPermission(PermissionState) Initializes a new instance of the MediaPermission class by specifying a permission state.
Public method MediaPermission(MediaPermissionAudio, MediaPermissionVideo, MediaPermissionImage) Initializes a new instance of the MediaPermission class by specifying the audio, video, and image permission levels.
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  Name Description
Public property Audio Gets the current value of the audio permission level.
Public property Image Gets the current value of the image permission level.
Public property Video Gets the current value of the video permission level.
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  Name Description
Public method Assert Declares that the calling code can access the resource protected by a permission demand through the code that calls this method, even if callers higher in the stack have not been granted permission to access the resource. Using Assert can create security issues. (Inherited from CodeAccessPermission.)
Public method Copy Creates and returns an identical copy of the current permission. (Overrides CodeAccessPermission.Copy().)
Public method Demand Forces a SecurityException at run time if all callers higher in the call stack have not been granted the permission specified by the current instance. (Inherited from CodeAccessPermission.)
Public method Deny Obsolete. Prevents callers higher in the call stack from using the code that calls this method to access the resource specified by the current instance. (Inherited from CodeAccessPermission.)
Public method Equals Determines whether the specified CodeAccessPermission object is equal to the current CodeAccessPermission. (Inherited from CodeAccessPermission.)
Protected method Finalize Allows an object to try to free resources and perform other cleanup operations before it is reclaimed by garbage collection. (Inherited from Object.)
Public method FromXml Reconstructs a permission with a specified state from an XML encoding. (Overrides CodeAccessPermission.FromXml(SecurityElement).)
Public method GetHashCode Gets a hash code for the CodeAccessPermission object that is suitable for use in hashing algorithms and data structures such as a hash table. (Inherited from CodeAccessPermission.)
Public method GetType Gets the Type of the current instance. (Inherited from Object.)
Public method Intersect Creates and returns a permission that is the intersection of the current permission and the specified permission. (Overrides CodeAccessPermission.Intersect(IPermission).)
Public method IsSubsetOf Determines whether the current permission is a subset of the specified permission. (Overrides CodeAccessPermission.IsSubsetOf(IPermission).)
Public method IsUnrestricted Returns a value indicating whether the current permission is unrestricted.
Protected method MemberwiseClone Creates a shallow copy of the current Object. (Inherited from Object.)
Public method PermitOnly Prevents callers higher in the call stack from using the code that calls this method to access all resources except for the resource specified by the current instance. (Inherited from CodeAccessPermission.)
Public method ToString Creates and returns a string representation of the current permission object. (Inherited from CodeAccessPermission.)
Public method ToXml Creates an XML encoding of the permission and its current state. (Overrides CodeAccessPermission.ToXml().)
Public method Union Creates a permission that is the union of the current permission and the specified permission. (Overrides CodeAccessPermission.Union(IPermission).)
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This permission uses the values of the MediaPermissionAudio, MediaPermissionImage, and MediaPermissionVideo enumerations.

.NET Framework

Supported in: 4, 3.5, 3.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.
Any public static (Shared in Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.
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