﻿<?xml version="1.0" encoding="utf-8"?><Type Name="CriticalHandleZeroOrMinusOneIsInvalid" FullName="Microsoft.Win32.SafeHandles.CriticalHandleZeroOrMinusOneIsInvalid"><TypeSignature Language="C#" Value="public abstract class CriticalHandleZeroOrMinusOneIsInvalid : System.Runtime.InteropServices.CriticalHandle" /><TypeSignature Language="ILAsm" Value=".class public auto ansi abstract beforefieldinit CriticalHandleZeroOrMinusOneIsInvalid extends System.Runtime.InteropServices.CriticalHandle implements class System.IDisposable" /><AssemblyInfo><AssemblyName>mscorlib</AssemblyName><AssemblyVersions><AssemblyVersion>2.0.0.0</AssemblyVersion></AssemblyVersions><AssemblyVersion>2.0.0.0</AssemblyVersion><AssemblyVersion>4.0.0.0</AssemblyVersion></AssemblyInfo><Base><BaseTypeName>System.Runtime.InteropServices.CriticalHandle</BaseTypeName></Base><Interfaces /><Docs><since version=".NET 2.0" /><remarks><attribution license="cc4" from="Microsoft" modified="false" /><para>This class derives from the <see cref="T:System.Runtime.InteropServices.CriticalHandle" /> class. It describes the format of an invalid handle. For example, some handles use -1 as an invalid handle value, while others use 0. Further derivations of this class (for example, file or registry handles) can specialize this further.</para><para>Use the <see cref="T:Microsoft.Win32.SafeHandles.CriticalHandleZeroOrMinusOneIsInvalid" /> class when you need to wrap an unmanaged resource that does not have an existing managed wrapper.</para><block subset="none" type="note"><para>See the <see cref="T:System.Runtime.InteropServices.CriticalHandle" /> class for important information on critical handle security and thread safety.</para></block></remarks><summary><attribution license="cc4" from="Microsoft" modified="false" /><para>Provides a base class for Win32 critical handle implementations in which the value of either 0 or -1 indicates an invalid handle.</para></summary></Docs><Members><Member MemberName=".ctor"><MemberSignature Language="C#" Value="protected CriticalHandleZeroOrMinusOneIsInvalid ();" /><MemberSignature Language="ILAsm" Value=".method familyhidebysig specialname rtspecialname instance void .ctor() cil managed" /><MemberType>Constructor</MemberType><AssemblyInfo><AssemblyVersion>2.0.0.0</AssemblyVersion><AssemblyVersion>4.0.0.0</AssemblyVersion></AssemblyInfo><Attributes><Attribute><AttributeName>System.Runtime.ConstrainedExecution.ReliabilityContract(System.Runtime.ConstrainedExecution.Consistency.WillNotCorruptState, System.Runtime.ConstrainedExecution.Cer.MayFail)</AttributeName></Attribute></Attributes><Parameters /><Docs><remarks>To be added.</remarks><since version=".NET 2.0" /><summary><attribution license="cc4" from="Microsoft" modified="false" /><para>Initializes a new instance of the <see cref="T:Microsoft.Win32.SafeHandles.CriticalHandleZeroOrMinusOneIsInvalid" /> class. </para></summary></Docs></Member><Member MemberName="IsInvalid"><MemberSignature Language="C#" Value="public override bool IsInvalid { get; }" /><MemberSignature Language="ILAsm" Value=".property instance bool IsInvalid" /><MemberType>Property</MemberType><AssemblyInfo><AssemblyVersion>2.0.0.0</AssemblyVersion><AssemblyVersion>4.0.0.0</AssemblyVersion></AssemblyInfo><ReturnValue><ReturnType>System.Boolean</ReturnType></ReturnValue><Docs><value>To be added.</value><since version=".NET 2.0" /><remarks><attribution license="cc4" from="Microsoft" modified="false" /><para>The common language runtime uses this property to determine whether critical finalization is required.</para></remarks><summary><attribution license="cc4" from="Microsoft" modified="false" /><para>Gets a value that indicates whether the handle is invalid.</para></summary></Docs></Member></Members></Type>