Overloads Public Sub Load( _
   ByVal stream As Stream, _
   ByVal bitsPerPixel As Integer, _
   ByVal order As CodecsLoadByteOrder, _
   ByVal page As Integer _
) 

Visual Basic (Usage)	Copy Code
Dim instance As RasterImageViewerElement Dim stream As Stream Dim bitsPerPixel As Integer Dim order As CodecsLoadByteOrder Dim page As Integer   instance.Load(stream, bitsPerPixel, order, page)

public void Load( 
   Stream stream,
   int bitsPerPixel,
   CodecsLoadByteOrder order,
   int page
)

public: void Load( 
   Stream* stream,
   int bitsPerPixel,
   CodecsLoadByteOrder order,
   int page
) 

public:
void Load( 
   Stream^ stream,
   int bitsPerPixel,
   CodecsLoadByteOrder order,
   int page
) 

Parameters

stream

A Stream containing the the image data to load.

bitsPerPixel

Resulting image pixel depth. Valid values are:

value	meaning
0	Keep the original file's pixel depth (do not convert the image).
1 to 8	The specified bits per pixel in the resulting image.
12	12 bits per pixel in the resulting image.
16	16 bits per pixel in the resulting image.
24	24 bits per pixel in the resulting image.
32	32 bits per pixel in the resulting image.
48	48 bits per pixel in the resulting image.
64	64 bits per pixel in the resulting image.

order

Color order for 16-, 24-, 32-, 48-, and 64-bit images. If the resulting image is less than 16 bits per pixel, this will have no effect since palettized images have no order. The following values are valid:

Value	Meaning
CodecsLoadByteOrder.Rgb	Red, green, and blue color order in memory.
CodecsLoadByteOrder.Bgr	Blue, green, and red color order in memory.
CodecsLoadByteOrder.Gray	12- or 16-bit grayscale image. 12- and 16-bit grayscale images are only supported in the Document/Medical Imaging editions.
CodecsLoadByteOrder.RgbOrGray	Load the image as red, green, blue OR as a 12- or 16-bit grayscale image. 12- and 16-bit grayscale images are supported in the Document/Medical Imaging editions.
CodecsLoadByteOrder.BgrOrGray	Load the image as blue, green, red OR as a 12- or 16-bit grayscale image. 12- and 16-bit grayscale images are supported in the Document/Medical Imaging editions.
CodecsLoadByteOrder.Romm	ROMM order. ROMM only supports 24- and 48-bit images.
CodecsLoadByteOrder.BgrOrGrayOrRomm	Load the image as red, green, blue OR as a 12- or 16-bit grayscale image OR as ROMM. 12- and 16-bit grayscale images are supported in the Document/Medical Imaging editions only. ROMM only supports 24- and 48-bit color images.

page

1-based index of the page to load.

This example will show how to load an image using different bits per pixel and color order. Also, it will show how to load a single page from a multipage file. All loading operations load from a stream rather than from a file on disk.

Visual Basic

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Public Sub RasterImageViewerElement_Load1(ByVal viewer As RasterImageViewerElement)    Dim multiPageFileName As String = "C:\Program Files\LEAD Technologies\LEADTOOLS 15\Images\Eye.gif"    Dim fs As FileStream = File.OpenRead(multiPageFileName)    ' Load the first page    Dim first As Integer = 1    viewer.Load(fs, 0, CodecsLoadByteOrder.BgrOrGray, first)    Console.WriteLine("Loading pages {0}", first)    viewer.Image.Dispose()    ' Load the second page    first = 2    viewer.Load(fs, 0, CodecsLoadByteOrder.BgrOrGray, first)    Console.WriteLine("Loading pages {0}", first)    viewer.Image.Dispose() End Sub

C#

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public void RasterImageViewerElement_Load1(RasterImageViewerElement viewer)  {     string multiPageFileName = @"C:\Program Files\LEAD Technologies\LEADTOOLS 15\Images\Eye.gif";       FileStream fs = File.OpenRead(multiPageFileName);       // Load the first page     int first = 1;     viewer.Load(fs, 0, CodecsLoadByteOrder.BgrOrGray, first);     Console.WriteLine("Loading pages {0}", first);     viewer.Image.Dispose();       // Load the second page     first = 2;     viewer.Load(fs, 0, CodecsLoadByteOrder.BgrOrGray, first);     Console.WriteLine("Loading pages {0}", first);     viewer.Image.Dispose();  }

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

LEADTOOLS will attempt to load corrupted files, so you can see at least a portion of the image.

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 Vista, and Windows Server 2003 family

Reference