PrintQueueStream.BeginWrite 方法

定义

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

表示异步写入的 IAsyncResult(可能仍处于挂起状态)。

适用于