- stream
- A System.IO.Stream containing the image data to load.
- tile
- A Leadtools.LeadRect describing the tile/area of the image to load.
Visual Basic (Declaration) | |
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Overloads Public Function Load( _ ByVal stream As Stream, _ ByVal tile As LeadRect _ ) As RasterImage |
Visual Basic (Usage) | Copy Code |
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Dim instance As RasterCodecs Dim stream As Stream Dim tile As LeadRect Dim value As RasterImage value = instance.Load(stream, tile) |
C# | |
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public RasterImage Load( Stream stream, LeadRect tile ) |
C++/CLI | |
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public: RasterImage^ Load( Stream^ stream, LeadRect tile ) |
Parameters
- stream
- A System.IO.Stream containing the image data to load.
- tile
- A Leadtools.LeadRect describing the tile/area of the image to load.
Return Value
The Leadtools.RasterImage object that this method loads.This example will create a rectangle area from a stream containing image data.
Visual Basic | Copy Code |
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Public Sub LoadTileStream1Example() 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_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 LeadRect = New LeadRect(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() End Sub Public NotInheritable Class LEAD_VARS Public Const ImagesDir As String = "C:\Users\Public\Documents\LEADTOOLS Images" End Class |
C# | Copy Code |
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public void LoadTileStream1Example() { RasterCodecs codecs = new RasterCodecs(); string srcFileName = Path.Combine(LEAD_VARS.ImagesDir, "Image1.cmp"); string destFileName = Path.Combine(LEAD_VARS.ImagesDir, "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 LeadRect rc = new LeadRect( 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(); } static class LEAD_VARS { public const string ImagesDir = @"C:\Users\Public\Documents\LEADTOOLS Images"; } |
SilverlightCSharp | Copy Code |
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public void LoadTileStream1Example(Stream inStreamCmp, Stream outStreamBmp) { RasterCodecs codecs = new RasterCodecs(); // Get the image dimension CodecsImageInfo info = codecs.GetInformation(inStreamCmp, false); // Load the lower right corner of the image LeadRect rc = new LeadRect(info.Width / 2, info.Height / 2, info.Width / 2, info.Height / 2); RasterImage image = codecs.Load(inStreamCmp, rc); Debug.Assert(image.Width == (info.Width / 2)); Debug.Assert(image.Height == (info.Height / 2)); // Save this image back to disk codecs.Save(image, outStreamBmp, RasterImageFormat.Bmp, 24); image.Dispose(); } |
SilverlightVB | Copy Code |
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Public Sub LoadTileStream1Example(ByVal inStreamCmp As Stream, ByVal outStreamBmp As Stream) Dim codecs As RasterCodecs = New RasterCodecs() ' Get the image dimension Dim info As CodecsImageInfo = codecs.GetInformation(inStreamCmp, False) ' Load the lower right corner of the image Dim rc As LeadRect = New LeadRect(info.Width / 2, info.Height / 2, info.Width / 2, info.Height / 2) Dim image As RasterImage = codecs.Load(inStreamCmp, rc) Debug.Assert(image.Width = (info.Width / 2)) Debug.Assert(image.Height = (info.Height / 2)) ' Save this image back to disk codecs.Save(image, outStreamBmp, RasterImageFormat.Bmp, 24) image.Dispose() End Sub |
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: Silverlight, Windows XP, Windows Server 2003 family, Windows Server 2008 family, Windows Vista, Windows 7, MAC OS/X (Intel Only)