PrintQueueStream.BeginWrite 方法

定义

命名空间:

System.Printing

程序集:

System.Printing.dll

开始异步写操作。

public:
 override IAsyncResult ^ BeginWrite(cli::array <System::Byte> ^ buffer, int offset, int count, AsyncCallback ^ callback, System::Object ^ state);

public override IAsyncResult BeginWrite (byte[] buffer, int offset, int count, AsyncCallback callback, object state);

override this.BeginWrite : byte[] * int * int * AsyncCallback * obj -> IAsyncResult

Public Overrides Function BeginWrite (buffer As Byte(), offset As Integer, count As Integer, callback As AsyncCallback, state As Object) As IAsyncResult

参数

buffer

Byte[]

从中写入数据的缓冲区。

offset

Int32

从中开始写入的缓冲区中的字节偏移量。

count

Int32

最多写入的字节数。

callback

AsyncCallback

异步回叫，写操作完成时调用。

state

Object

一个用户提供的对象，它将该异步写入请求与其他请求区别开来。

返回

IAsyncResult

表示异步写入的 IAsyncResult（可能仍处于挂起状态）。