Overlapped 构造函数

定义

命名空间:: System.Threading

程序集:: netstandard.dll, System.Threading.Overlapped.dll

程序集:: System.Threading.Overlapped.dll

程序集:: mscorlib.dll

程序集:: netstandard.dll

重要

一些信息与预发行产品相关，相应产品在发行之前可能会进行重大修改。对于此处提供的信息，Microsoft 不作任何明示或暗示的担保。

初始化 Overlapped 类的新实例。

重载

名称	说明
Overlapped()	初始化类的新空实例 Overlapped 。
Overlapped(Int32, Int32, Int32, IAsyncResult)	已过时. 已过时. 已过时. 使用指定的文件位置初始化类的新实例 Overlapped ，将 32 位整数句柄初始化 I/O 操作完成后发出信号的事件，以及返回操作结果的接口。
Overlapped(Int32, Int32, IntPtr, IAsyncResult)	使用指定的文件位置初始化类的新实例 Overlapped 、I/O 操作完成时发出信号的事件的句柄，以及返回操作结果的接口。

Overlapped()

Source:: Overlapped.cs

Source:: Overlapped.cs

Source:: Overlapped.cs

Source:: Overlapped.cs

Source:: Overlapped.cs

初始化类的新空实例 Overlapped 。

public:
 Overlapped();

public Overlapped();

Public Sub New ()

适用于

Overlapped(Int32, Int32, Int32, IAsyncResult)

Source:: Overlapped.cs

Source:: Overlapped.cs

Source:: Overlapped.cs

Source:: Overlapped.cs

Source:: Overlapped.cs

注意

This constructor is not 64-bit compatible and has been deprecated. Use the constructor that accepts an IntPtr for the event handle instead.

注意

This constructor is not 64-bit compatible. Use the constructor that takes an IntPtr for the event handle. https://go.microsoft.com/fwlink/?linkid=14202

注意

This constructor is not 64-bit compatible. Use the constructor that takes an IntPtr for the event handle. http://go.microsoft.com/fwlink/?linkid=14202

使用指定的文件位置初始化类的新实例 Overlapped ，将 32 位整数句柄初始化 I/O 操作完成后发出信号的事件，以及返回操作结果的接口。

public:
 Overlapped(int offsetLo, int offsetHi, int hEvent, IAsyncResult ^ ar);

[System.Obsolete("This constructor is not 64-bit compatible and has been deprecated. Use the constructor that accepts an IntPtr for the event handle instead.")]
public Overlapped(int offsetLo, int offsetHi, int hEvent, IAsyncResult? ar);

[System.Obsolete("This constructor is not 64-bit compatible.  Use the constructor that takes an IntPtr for the event handle.  https://go.microsoft.com/fwlink/?linkid=14202")]
public Overlapped(int offsetLo, int offsetHi, int hEvent, IAsyncResult? ar);

[System.Obsolete("This constructor is not 64-bit compatible.  Use the constructor that takes an IntPtr for the event handle.  http://go.microsoft.com/fwlink/?linkid=14202")]
public Overlapped(int offsetLo, int offsetHi, int hEvent, IAsyncResult ar);

public Overlapped(int offsetLo, int offsetHi, int hEvent, IAsyncResult ar);

[System.Obsolete("This constructor is not 64-bit compatible.  Use the constructor that takes an IntPtr for the event handle.  https://go.microsoft.com/fwlink/?linkid=14202")]
public Overlapped(int offsetLo, int offsetHi, int hEvent, IAsyncResult ar);

[<System.Obsolete("This constructor is not 64-bit compatible and has been deprecated. Use the constructor that accepts an IntPtr for the event handle instead.")>]
new System.Threading.Overlapped : int * int * int * IAsyncResult -> System.Threading.Overlapped

[<System.Obsolete("This constructor is not 64-bit compatible.  Use the constructor that takes an IntPtr for the event handle.  https://go.microsoft.com/fwlink/?linkid=14202")>]
new System.Threading.Overlapped : int * int * int * IAsyncResult -> System.Threading.Overlapped

[<System.Obsolete("This constructor is not 64-bit compatible.  Use the constructor that takes an IntPtr for the event handle.  http://go.microsoft.com/fwlink/?linkid=14202")>]
new System.Threading.Overlapped : int * int * int * IAsyncResult -> System.Threading.Overlapped

new System.Threading.Overlapped : int * int * int * IAsyncResult -> System.Threading.Overlapped

Public Sub New (offsetLo As Integer, offsetHi As Integer, hEvent As Integer, ar As IAsyncResult)

参数

offsetLo: Int32

要开始传输的文件位置的低字。

offsetHi: Int32

要开始传输的文件位置的高字。

hEvent: Int32

I/O 操作完成时发出信号的事件的句柄。

ar: IAsyncResult

实现 IAsyncResult 接口并提供有关 I/O 操作的状态信息的对象。

属性: ObsoleteAttribute

注解

使用该 WaitHandle.Handle 属性获取派生自 WaitHandle 类的任何托管同步事件的句柄。

IAsyncResult实现提供有关 I/O 操作的状态信息。将其传递给参数中的 ar 构造函数，并在稍后使用 AsyncResult 属性检索该构造函数。如果为Pack或UnsafePack方法指定了回调方法，则回调可以通过解压缩NativeOverlapped它收到的结构来检索。IAsyncResult

适用于

Overlapped(Int32, Int32, IntPtr, IAsyncResult)

Source:: Overlapped.cs

Source:: Overlapped.cs

Source:: Overlapped.cs

Source:: Overlapped.cs

Source:: Overlapped.cs

使用指定的文件位置初始化类的新实例 Overlapped 、I/O 操作完成时发出信号的事件的句柄，以及返回操作结果的接口。

public:
 Overlapped(int offsetLo, int offsetHi, IntPtr hEvent, IAsyncResult ^ ar);

public Overlapped(int offsetLo, int offsetHi, IntPtr hEvent, IAsyncResult? ar);

public Overlapped(int offsetLo, int offsetHi, IntPtr hEvent, IAsyncResult ar);

new System.Threading.Overlapped : int * int * nativeint * IAsyncResult -> System.Threading.Overlapped

Public Sub New (offsetLo As Integer, offsetHi As Integer, hEvent As IntPtr, ar As IAsyncResult)

参数

offsetLo: Int32

要开始传输的文件位置的低字。

offsetHi: Int32

要开始传输的文件位置的高字。

hEvent: IntPtr
nativeint

I/O 操作完成时发出信号的事件的句柄。

ar: IAsyncResult

实现 IAsyncResult 接口并提供有关 I/O 操作的状态信息的对象。

注解

若要获取派生自 WaitHandle 类的托管同步对象的句柄，请使用 WaitHandle.SafeWaitHandle 属性获取对象 SafeWaitHandle ，然后调用 DangerousGetHandle 该方法。

适用于

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