LEADTOOLS Image File Support (Leadtools.Codecs assembly) Send comments on this topic. | Back to Introduction - All Topics | Help Version 17.0.3.29
Load(Uri) Method
See Also 
Leadtools.Codecs Namespace > RasterCodecs Class > Load Method : Load(Uri) Method



uri
The System.Uri containing the input image data.
uri
The System.Uri containing the input image data.
Loads the specified image URL using default options.

Syntax

Visual Basic (Declaration) 
Overloads Public Function Load( _
   ByVal uri As Uri _
) As RasterImage
Visual Basic (Usage)Copy Code
Dim instance As RasterCodecs
Dim uri As Uri
Dim value As RasterImage
 
value = instance.Load(uri)
C# 
public RasterImage Load( 
   Uri uri
)
C++/CLI 
public:
RasterImage^ Load( 
   Uri^ uri
)

Parameters

uri
The System.Uri containing the input image data.

Return Value

The Leadtools.RasterImage object that this method loads.

Example

This example will load an image from a uri

Visual BasicCopy Code
Public Sub LoadUri1Example()
   Dim codecs As New RasterCodecs()

   Dim uri As New Uri("http://www.leadtools.com/images/15-homepg-banner.jpg")
   Dim image As RasterImage = codecs.Load(uri)

   ' Show information about tha image
   Console.WriteLine("Size: {0} by {1} pixels", image.Width, image.Height)
   Console.WriteLine("Bits/Pixel: {0}", image.BitsPerPixel)
   image.Dispose()

   ' Clean up
   codecs.Dispose()
End Sub
C#Copy Code
public void LoadUri1Example()
{
   RasterCodecs codecs = new RasterCodecs();

   Uri uri = new Uri(@"http://www.leadtools.com/images/page_graphics/leadlogo.png");
   RasterImage image = codecs.Load(uri);

   // Show information about tha image
   Console.WriteLine("Size: {0} by {1} pixels", image.Width, image.Height);
   Console.WriteLine("Bits/Pixel: {0}", image.BitsPerPixel);
   image.Dispose();

   // Clean up
   codecs.Dispose();
}
SilverlightCSharpCopy Code


SilverlightVBCopy Code


 
            
            
Remarks
The file can be in any supported image file format and bits per pixel, whether compressed or uncompressed.



This method will load all the pages in a multipage file. The resulting image will have the same bits/pixel and color order value of the image as it was stored in the file.



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.



LEADTOOLS supports the following URI schemes:




    
        

            Scheme

            Description
        


        

            System.Uri.UriSchemeFile

            Specifies that the URI is a disk file in local machine or universal naming convention (UNC) path.
        


        

            System.Uri.UriSchemeHttp

            Specifies that the URI is accessed through the Hypertext Transfer Protocol (HTTP).
        


        

            System.Uri.UriSchemeHttps

            Specifies that the URI is accessed through the Secure Hypertext Transfer Protocol (HTTPS).
        


        

            System.Uri.UriSchemeFtp

            Specifies that the URI is accessed through the File Transfer Protocol (FTP).
        

    







If uri points to a resource in a System.Uri.UriSchemeHttp, System.Uri.UriSchemeHttps or System.Uri.UriSchemeFtp, then this RasterCodecs will attempt to download image data in an iterative fashion by creating a temporary buffer. The size of this buffer can be determined and changed by setting up the UriOperationBufferSize prior to calling this method.



For authentical and proxy settings, refer to UriOperationCredentials and UriOperationProxy.

            
Requirements
Target Platforms: Silverlight, Windows XP, Windows Server 2003 family, Windows Server 2008 family, Windows Vista, Windows 7, MAC OS/X (Intel Only) 

            
            
See Also