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UIntPtr.Zero Field

A read-only field that represents a pointer or handle that has been initialized to zero.

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

public static readonly UIntPtr Zero

The value of this field is not equivalent to null. Use this field to efficiently determine whether an instance of UIntPtr has been set to a value other than zero.

For example, assume the variable, uip, is an instance of UIntPtr. You can determine if it has been set by comparing it to the value returned by a constructor, for example: " if uip != new UIntPtr(0)... ". However, invoking a constructor to get an unintialized pointer is inefficient. It is better to code either " if uip != UIntPtr.Zero... ", or " if !UIntPtr.Zero.Equals(uip)... ".

.NET Framework

Supported in: 4, 3.5, 3.0, 2.0, 1.1, 1.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Portable Class Library

Supported in: Portable Class Library

Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows XP SP2 x64 Edition, 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.
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