Public Overloads Function Load( _
   ByVal stream As Stream, _
   ByVal tile As Rectangle _
) As RasterImage

Visual Basic (Usage)	Copy Code
Dim instance As RasterCodecs Dim stream As Stream Dim tile As Rectangle Dim value As RasterImage   value = instance.Load(stream, tile)

public RasterImage Load( 
   Stream stream,
   Rectangle tile
)

public:
RasterImage Load( 
   Stream^ stream,
   Rectangle tile
) 

Parameters

stream

A Stream containing the image data to load.

tile

A Rectangle describing the tile/area of the image to load.

Return Value

This example will create a rectangle area from a stream containing image data.

Visual Basic

Copy Code

Public Sub LoadTileStream1Example()    RasterCodecs.Startup()    Dim codecs As RasterCodecs = New RasterCodecs()    Dim srcFileName As String = LeadtoolsExamples.Common.ImagesPath.Path + "Image1.cmp"    Dim destFileName As String = LeadtoolsExamples.Common.ImagesPath.Path + "Image1_LoadTileStream1.bmp"    Dim fs As FileStream = File.OpenRead(srcFileName)    ' Get the image dimension    Dim info As CodecsImageInfo = codecs.GetInformation(fs, False)    ' Load the lower right corner of the image    Dim rc As Rectangle = New Rectangle(info.Width \ 2, info.Height \ 2, info.Width \ 2, info.Height \ 2)    Dim image As RasterImage = codecs.Load(fs, rc)    fs.Close()    Debug.Assert(image.Width = (info.Width \ 2))    Debug.Assert(image.Height = (info.Height \ 2))    ' Save this image back to disk    codecs.Save(image, destFileName, RasterImageFormat.Bmp, 24)    image.Dispose()    ' Clean up    codecs.Dispose()    RasterCodecs.Shutdown() End Sub

C#

Copy Code

public void LoadTileStream1Example()  {     RasterCodecs.Startup();     RasterCodecs codecs = new RasterCodecs();       string srcFileName = LeadtoolsExamples.Common.ImagesPath.Path + "Image1.cmp";     string destFileName = LeadtoolsExamples.Common.ImagesPath.Path + "Image1_LoadTileStream1.bmp";       FileStream fs = File.OpenRead(srcFileName);       // Get the image dimension     CodecsImageInfo info = codecs.GetInformation(fs, false);       // Load the lower right corner of the image     Rectangle rc = new Rectangle(        info.Width / 2,        info.Height / 2,        info.Width / 2,        info.Height / 2);       RasterImage image = codecs.Load(fs, rc);     fs.Close();       Debug.Assert(image.Width == (info.Width / 2));     Debug.Assert(image.Height == (info.Height / 2));       // Save this image back to disk     codecs.Save(image, destFileName, RasterImageFormat.Bmp, 24);     image.Dispose();       // Clean up     codecs.Dispose();     RasterCodecs.Shutdown();  }

This method loads a section of an image stream (any format). The section begins is defined by tile rectangle.

LEADTOOLS will attempt to load corrupted files, so you can see at least a portion of the image. For these images, the load methods succeed, but LoadStatus will return an error code.

Use the CodecsLoadOptions class to set up other load options parameters before calling this method.

Support for 12 and 16-bit grayscale images is only available in the Document/Medical Imaging editions.

For supported formats, refer to Summary of All Supported Image File Formats.

LEADTOOLS loads all PDF files as Raster PDF uncompressed RasterImageFormat.RasPdf, regardless of the compression and color space used when saving the file.

Target Platforms: Microsoft .NET Framework 3.0, Windows XP, Windows Server 2003 family, Windows Server 2008 family

Reference