LEADTOOLS Image File Support (Leadtools.Codecs assembly)

ReadThumbnail(Stream,CodecsThumbnailOptions,Int32) Method

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A System.IO.Stream containing the image data from which the thumbnail image will be created.
Options for creating the thumbnail image.
1-based index of the page from which the thumbnail image should be created.
Creates a thumbnail from the specified image stream.
Syntax
public RasterImage ReadThumbnail( 
   Stream stream,
   CodecsThumbnailOptions options,
   int pageNumber
)
'Declaration
 
Public Overloads Function ReadThumbnail( _
   ByVal stream As Stream, _
   ByVal options As CodecsThumbnailOptions, _
   ByVal pageNumber As Integer _
) As RasterImage
'Usage
 
Dim instance As RasterCodecs
Dim stream As Stream
Dim options As CodecsThumbnailOptions
Dim pageNumber As Integer
Dim value As RasterImage
 
value = instance.ReadThumbnail(stream, options, pageNumber)
public RasterImage ReadThumbnail( 
   Stream stream,
   CodecsThumbnailOptions options,
   int pageNumber
)
-(LTRasterImage*)readThumbnail:(LTLeadStream*)stream options:(LTCodecsThumbnailOptions*)thumbnailOptions pageNumber:(unsigned int)pageNumber error:(NSError**)outError;
public RasterImage readThumbnail(ILeadStream stream, CodecsThumbnailOptions options, int pageNumber)
 function Leadtools.Codecs.RasterCodecs.ReadThumbnail(Stream,CodecsThumbnailOptions,Int32)( 
   stream ,
   options ,
   pageNumber 
)
public:
RasterImage^ ReadThumbnail( 
   Stream^ stream,
   CodecsThumbnailOptions options,
   int pageNumber
) 

Parameters

stream
A System.IO.Stream containing the image data from which the thumbnail image will be created.
options
Options for creating the thumbnail image.
pageNumber
1-based index of the page from which the thumbnail image should be created.

Return Value

The Leadtools.RasterImage object that this method creates.
Remarks
This method will always return a thumbnail image. Depending on the options passed, this method might read the stamp stored inside EXIF, CMP, JFIF and FlashPix files and return that. To read the file stamp only, use ReadStamp(String,Int32).
Example
For an example, refer to ReadThumbnail.
Requirements

Target Platforms

See Also

Reference

RasterCodecs Class
RasterCodecs Members
Overload List
Thumbnail Browser

 

 


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