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UIntPtr.Zero Field

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

This field is not CLS-compliant.  

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

public static readonly UIntPtr Zero
public static final UIntPtr Zero
public static final var Zero : UIntPtr

The value of this field is not equivalent to a null reference (Nothing in Visual Basic). 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)... ".

Windows 98, Windows 2000 SP4, Windows CE, Windows Millennium Edition, Windows Mobile for Pocket PC, Windows Mobile for Smartphone, 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.

.NET Framework

Supported in: 2.0, 1.1, 1.0

.NET Compact Framework

Supported in: 2.0, 1.0

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