The options can be changed freely until the Compress method is called for the first time. After that, changing the options will have no effect. options can be null. Options with the CompressionLevel.Normal template will be used. headerType indicates the type of header to use before the compressed data. Only use None if you intend to make your own format. In that case the WriteLZMAProperties() will be useful.

'Declaration
 
Public Function New( _
   ByVal options As LZMAOptions, _
   ByVal headerType As LZMAHeaderType _
)

'Usage
 
Dim options As LZMAOptions
Dim headerType As LZMAHeaderType
 
Dim instance As New ManagedLzmaCompressorUnsafe(options, headerType)

public ManagedLzmaCompressorUnsafe( 
   LZMAOptions options,
   LZMAHeaderType headerType
)