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Marshal.UnsafeAddrOfPinnedArrayElement Method

.NET Framework 2.0

Other Versions

Gets the address of the element at the specified index inside the specified array.

Namespace: System.Runtime.InteropServices
Assembly: mscorlib (in mscorlib.dll)

Syntax

C++

Copy

public static IntPtr UnsafeAddrOfPinnedArrayElement (
	Array arr,
	int index
)

Copy

public static IntPtr UnsafeAddrOfPinnedArrayElement (
	Array arr, 
	int index
)

JScript

Copy

public static function UnsafeAddrOfPinnedArrayElement (
	arr : Array, 
	index : int
) : IntPtr

Parameters

arr: The Array containing the desired element.

index: The index in the arr parameter of the desired element.

Return Value

The address of index inside arr.

Remarks

The array must be pinned using a GCHandle before it is passed to this method. For maximum performance, this method does no validation on the array passed to it; this can result in unexpected behavior.

Note
This method uses SecurityAction.LinkDemand to prevent it from being called from untrusted code; only the immediate caller is required to have SecurityPermissionAttribute.UnmanagedCode permission. If your code can be called from partially trusted code, do not pass user input to Marshal class methods without validation. For important limitations on using the LinkDemand member, see Demand vs. LinkDemand.

Note

This method uses SecurityAction.LinkDemand to prevent it from being called from untrusted code; only the immediate caller is required to have SecurityPermissionAttribute.UnmanagedCode permission. If your code can be called from partially trusted code, do not pass user input to Marshal class methods without validation. For important limitations on using the LinkDemand member, see Demand vs. LinkDemand.

.NET Framework Security

SecurityPermission for permission to call unmanaged code. Associated enumeration: UnmanagedCode Security action: LinkDemand

Platforms

Windows 98, Windows 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 .NET Framework does not support all versions of every platform. For a list of the supported versions, see System Requirements.

Version Information

.NET Framework

Supported in: 2.0, 1.1, 1.0

Reference

Marshal Class
Marshal Members
System.Runtime.InteropServices Namespace
GCHandle Structure

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