UIPermission Class

Definition

Namespace:

System.Security.Permissions

Assembly:

System.Security.Permissions.dll

Caution

Code Access Security is not supported or honored by the runtime.

Controls the permissions related to user interfaces and the Clipboard. This class cannot be inherited.

public ref class UIPermission sealed : System::Security::CodeAccessPermission, System::Security::Permissions::IUnrestrictedPermission

[System.Obsolete("Code Access Security is not supported or honored by the runtime.", DiagnosticId="SYSLIB0003", UrlFormat="https://aka.ms/dotnet-warnings/{0}")]
public sealed class UIPermission : System.Security.CodeAccessPermission, System.Security.Permissions.IUnrestrictedPermission

[<System.Obsolete("Code Access Security is not supported or honored by the runtime.", DiagnosticId="SYSLIB0003", UrlFormat="https://aka.ms/dotnet-warnings/{0}")>]
type UIPermission = class
    inherit CodeAccessPermission
    interface IUnrestrictedPermission

Public NotInheritable Class UIPermission
Inherits CodeAccessPermission
Implements IUnrestrictedPermission

Inheritance

Object

CodeAccessPermission

UIPermission

Attributes

ObsoleteAttribute

Implements

IUnrestrictedPermission

Remarks

Caution

Code Access Security (CAS) has been deprecated across all versions of .NET Framework and .NET. Recent versions of .NET do not honor CAS annotations and produce errors if CAS-related APIs are used. Developers should seek alternative means of accomplishing security tasks.

Drawing and user input events in windows are user interfaces.

The permission to use windows can be one of the following: unrestricted, limited to SafeTopLevelWindows, only SafeSubWindows, or no window drawing or user input event access allowed. SafeTopLevelWindows and SafeSubWindows are restricted in title and size to prevent possible spoofing by potentially harmful code.

The permission to use the Clipboard can be one of the following: unrestricted, write-only, or no Clipboard access allowed. The paste limitation prevents potentially harmful applications from taking data from the Clipboard without the user's consent, while still allowing the cut, copy, and paste operations when initiated by the user through keyboard commands.

Constructors

UIPermission(PermissionState)	Initializes a new instance of the UIPermission class with either fully restricted or unrestricted access, as specified.
UIPermission(UIPermissionClipboard)	Initializes a new instance of the UIPermission class with the permissions for the Clipboard, and no access to windows.
UIPermission(UIPermissionWindow, UIPermissionClipboard)	Initializes a new instance of the UIPermission class with the specified permissions for windows and the Clipboard.
UIPermission(UIPermissionWindow)	Initializes a new instance of the UIPermission class with the permissions for windows, and no access to the Clipboard.

Properties

Clipboard	Gets or sets the Clipboard access represented by the permission.
Window	Gets or sets the window access represented by the permission.

Methods

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)
Copy()	Creates and returns an identical copy of the current permission.
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)
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)
Equals(Object)	Determines whether the specified CodeAccessPermission object is equal to the current CodeAccessPermission. (Inherited from CodeAccessPermission)
FromXml(SecurityElement)	Reconstructs a permission with a specified state from an XML encoding.
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)
GetType()	Gets the Type of the current instance. (Inherited from Object)
Intersect(IPermission)	Creates and returns a permission that is the intersection of the current permission and the specified permission.
IsSubsetOf(IPermission)	Determines whether the current permission is a subset of the specified permission.
IsUnrestricted()	Returns a value indicating whether the current permission is unrestricted.
MemberwiseClone()	Creates a shallow copy of the current Object. (Inherited from Object)
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)
ToString()	Creates and returns a string representation of the current permission object. (Inherited from CodeAccessPermission)
ToXml()	Creates an XML encoding of the permission and its current state.
Union(IPermission)	Creates a permission that is the union of the permission and the specified permission.

See also

• UIPermissionAttribute
• UIPermissionWindow
• UIPermissionClipboard