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Marshal.UnsafeAddrOfPinnedArrayElement Method

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

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

public static IntPtr UnsafeAddrOfPinnedArrayElement (
	Array arr,
	int index
public static IntPtr UnsafeAddrOfPinnedArrayElement (
	Array arr, 
	int index
public static function UnsafeAddrOfPinnedArrayElement (
	arr : Array, 
	index : int
) : IntPtr
Not applicable.



The Array containing the desired element.


The index in the arr parameter of the desired element.

Return Value

The address of index inside arr.

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.


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.

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, 2.0, 1.1, 1.0

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