Leadtools.Codecs Namespace > Classes > RasterCodecs > Methods > Load Method > Load(Stream,Int64,Int64) Method

public Leadtools.RasterImage Load(  
   Stream stream, 
   long offset, 
   long count 
) 

Public Overloads Function Load( _ 
   ByVal stream As Stream, _ 
   ByVal offset As Long, _ 
   ByVal count As Long _ 
) As Leadtools.RasterImage 

public Leadtools.RasterImage Load(  
   Stream stream, 
   long offset, 
   long count 
) 

 function Leadtools.Codecs.RasterCodecs.Load(Stream,Int64,Int64)(  
   stream , 
   offset , 
   count  
) 

public: 
Leadtools.RasterImage^ Load(  
   Stream^ stream, 
   int64 offset, 
   int64 count 
)  

using Leadtools; 
using Leadtools.Codecs; 
using Leadtools.ImageProcessing; 
using Leadtools.ImageProcessing.Color; 
using Leadtools.Svg; 
using LeadtoolsExamples.Common; 
 
public void LoadStreamOffset1Example() 
{ 
   RasterCodecs codecs = new RasterCodecs(); 
 
   string srcFileName = Path.Combine(LEAD_VARS.ImagesDir, "Image1.cmp"); 
   string destFileName = Path.Combine(LEAD_VARS.ImagesDir, "Image1_LoadStreamOffset1.bmp"); 
 
   // Create a memory stream, add a custom header then copy the content of the file 
   // into this stream.  After that, load the image from the stream given the offset 
 
   MemoryStream ms = new MemoryStream(); 
 
   // Add some custom header to the stream (4 bytes) 
   int headerSize = 4; 
   for (int i = 0; i < headerSize; i++) 
      ms.WriteByte(0); 
 
   // Now append the file into this stream 
   FileStream fs = File.OpenRead(srcFileName); 
 
   const int bufferSize = 1024; 
   byte[] buffer = new byte[bufferSize]; 
   int bytesRead; 
   do 
   { 
      bytesRead = fs.Read(buffer, 0, bufferSize); 
      if (bytesRead > 0) 
         ms.Write(buffer, 0, bytesRead); 
   } 
   while (bytesRead > 0); 
 
   fs.Close(); 
 
   // Reset the memory stream position to the beginning 
   ms.Position = 0; 
 
   // Now load the image with the offset 
   long offset = headerSize; 
   long count = ms.Length - headerSize; 
   RasterImage image = codecs.Load(ms, offset, count); 
 
   // Save this image back to disk 
   codecs.Save(image, destFileName, RasterImageFormat.Bmp, 24); 
   image.Dispose(); 
 
   // Clean up 
   codecs.Dispose(); 
} 
 
static class LEAD_VARS 
{ 
   public const string ImagesDir = @"C:\Users\Public\Documents\LEADTOOLS Images"; 
} 

Imports Leadtools 
Imports Leadtools.Codecs 
Imports Leadtools.ImageProcessing 
Imports Leadtools.ImageProcessing.Color 
Imports Leadtools.Drawing 
Imports Leadtools.Svg 
 
Public Sub LoadStreamOffset1Example() 
   Dim codecs As RasterCodecs = New RasterCodecs() 
 
   Dim srcFileName As String = Path.Combine(LEAD_VARS.ImagesDir, "Image1.cmp") 
   Dim destFileName As String = Path.Combine(LEAD_VARS.ImagesDir, "Image1_LoadStreamOffset1.bmp") 
 
   ' Create a memory stream, add a cutsom header then copy the content of the file 
   ' into this stream.  After that, load the image from the stream given the offset 
 
   Dim ms As MemoryStream = New MemoryStream() 
 
   ' Add some custom header to the stream (4 bytes) 
   Dim headerSize As Integer = 4 
   Dim i As Integer = 0 
   Do While i < headerSize 
      ms.WriteByte(0) 
      i += 1 
   Loop 
 
   ' Now append the file into this stream 
   Dim fs As FileStream = File.OpenRead(srcFileName) 
 
   Const bufferSize As Integer = 1024 
   Dim buffer As Byte() = New Byte(bufferSize - 1) {} 
   Dim bytesRead As Integer 
   Do 
      bytesRead = fs.Read(buffer, 0, bufferSize) 
      If bytesRead > 0 Then 
         ms.Write(buffer, 0, bytesRead) 
      End If 
   Loop While bytesRead > 0 
 
   fs.Close() 
 
   ' Reset the memory stream position to the beginning 
   ms.Position = 0 
 
   ' Now load the image with the offset 
   Dim offset As Long = headerSize 
   Dim count As Long = ms.Length - headerSize 
   Dim image As RasterImage = codecs.Load(ms, offset, count) 
 
   ' Save this image back to disk 
   codecs.Save(image, destFileName, RasterImageFormat.Bmp, 24) 
   image.Dispose() 
 
   ' Clean up 
   codecs.Dispose() 
End Sub 
 
Public NotInheritable Class LEAD_VARS 
   Public Const ImagesDir As String = "C:\Users\Public\Documents\LEADTOOLS Images" 
End Class 

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Leadtools.Codecs Assembly