'Declaration
 
Public Overloads Function ReadItemData( _
   ByVal stream As Stream, _
   ByVal bufferSize As Integer _
) As Long

'Usage
 
Dim instance As ZipReader
Dim stream As Stream
Dim bufferSize As Integer
Dim value As Long
 
value = instance.ReadItemData(stream, bufferSize)

public long ReadItemData( 
   Stream stream,
   int bufferSize
)

Parameters

stream

A System.IO.Stream object that will receive the item's data.

bufferSize

The number of bytes to be copied in each loop iteration.

Return Value

This method allows you to control the buffer size of the loop that drives the copy operation from the ZipReader object to the specified stream.

The specified stream must support writing. It is not necessary for the stream to support seeking or reading. The specified stream is written to using the specified buffer size until the end of the item's data is reached. The method does not close specified stream.
 
An interesting use of this method is to use the  System.IO.Steam.Null stream object. This will effectively skip an item's data and move ZipReader to the next item.

Target Platforms: Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

Reference

ZipReader Class
ZipReader Members
Overload List