Decompress(Object,IntPtr,Int32,Int32,Int32,Int32,Int32,Int32,CodecsDecompressDataFlags) Method

public void Decompress( 
   object decompressContext,
   IntPtr data,
   int dataOffset,
   int dataLength,
   int width,
   int height,
   int row,
   int column,
   CodecsDecompressDataFlags flags
)

'Declaration
 

Public Overloads Sub Decompress( _
   ByVal decompressContext As Object, _
   ByVal data As IntPtr, _
   ByVal dataOffset As Integer, _
   ByVal dataLength As Integer, _
   ByVal width As Integer, _
   ByVal height As Integer, _
   ByVal row As Integer, _
   ByVal column As Integer, _
   ByVal flags As CodecsDecompressDataFlags _
) 

'Usage
 

Dim instance As RasterCodecs
Dim decompressContext As Object
Dim data As IntPtr
Dim dataOffset As Integer
Dim dataLength As Integer
Dim width As Integer
Dim height As Integer
Dim row As Integer
Dim column As Integer
Dim flags As CodecsDecompressDataFlags
 
instance.Decompress(decompressContext, data, dataOffset, dataLength, width, height, row, column, flags)

public void Decompress( 
   object decompressContext,
   IntPtr data,
   int dataOffset,
   int dataLength,
   int width,
   int height,
   int row,
   int column,
   CodecsDecompressDataFlags flags
)

 function Leadtools.Codecs.RasterCodecs.Decompress(Object,IntPtr,Int32,Int32,Int32,Int32,Int32,Int32,CodecsDecompressDataFlags)( 
   decompressContext ,
   data ,
   dataOffset ,
   dataLength ,
   width ,
   height ,
   row ,
   column ,
   flags 
)

public:
void Decompress( 
   Object^ decompressContext,
   IntPtr data,
   int dataOffset,
   int dataLength,
   int width,
   int height,
   int row,
   int column,
   CodecsDecompressDataFlags flags
) 

Parameters

decompressContext

The decompressing context object obtained through StartDecompress.

data

A pointer to an unmanaged memory buffer that contains the raw compressed data.

dataOffset

Offset of the strip referenced by data, This is usually zero.

dataLength

Number of bytes in data.

width

Width of the uncompressed strip or tile, in bytes

height

Height of the uncompressed strip or tile, in bytes. If the image consists of a single compressed strip, as with TWAIN, this is the height of the image.

row

Row offset of the tile or strip.

column

Column offset of the tile or strip.

flags

Flags that indicate whether which part of a strip or tile is being processed. Possible values are:

Value	Meaning
CodecsDecompressDataFlags.Start	Processing the beginning of a tile or strip
CodecsDecompressDataFlags.End	Processing the end of a tile or strip
CodecsDecompressDataFlags.Complete	Process a complete tile or strip. This is the same as CodecsDecompressDataFlags.Start | CodecsDecompressDataFlags.End

Note that you must call the StartDecompress method before using this method, and you must call the StopDecompress method to end the decompression process.

If data does not point to a full tile or strip, set flags to CodecsDecompressDataFlags.Start when the tile/strip begins and set it to CodecsDecompressDataFlags.End when the tile/strip ends.

Target Platforms

Reference

RasterCodecs Class
RasterCodecs Members
Overload List
Compressing and Decompressing Buffers
Speeding Up 1-Bit Documents