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GZipStream.BeginWrite Method

Note: This method is new in the .NET Framework version 2.0.

Begins an asynchronous write operation.

Namespace: System.IO.Compression
Assembly: System (in system.dll)

public override IAsyncResult BeginWrite (
	byte[] array,
	int offset,
	int count,
	AsyncCallback asyncCallback,
	Object asyncState
)
public IAsyncResult BeginWrite (
	byte[] array, 
	int offset, 
	int count, 
	AsyncCallback asyncCallback, 
	Object asyncState
)
public override function BeginWrite (
	array : byte[], 
	offset : int, 
	count : int, 
	asyncCallback : AsyncCallback, 
	asyncState : Object
) : IAsyncResult

Parameters

array

The buffer containing data to write to the current stream.

offset

The byte offset in array at which to begin writing.

count

The maximum number of bytes to write.

asyncCallback

An optional asynchronous callback to be called when the write is complete.

asyncState

A user-provided object that distinguishes this particular asynchronous write request from other requests.

Return Value

An IAsyncResult object that represents the asynchronous write, which could still be pending.

Exception typeCondition

InvalidOperationException

The underlying stream is a null reference (Nothing in Visual Basic).

-or-

The underlying stream is closed.

The BeginWrite method starts an asynchronous write operation to a GZipStream stream object.

You must create a callback method that implements the AsyncCallback delegate and pass its name to the BeginWrite method.

Windows 98, Windows 2000 SP4, Windows Millennium Edition, 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

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