Image

Image class

Represents an Image.

public sealed class Image : Node, IOutlineElementChildNode, IPageChildNode, ITaggable

Constructors

Name Description
Image() Initializes a new instance of the Image class.
Image(string, Stream) Initializes a new instance of the Image class.
Image(string, string, string) Initializes a new instance of the Image class.

Properties

Name Description
Alignment { get; set; } Gets or sets the alignment.
AlternativeTextDescription { get; set; } Gets or sets a body an alternative text for the image.
AlternativeTextTitle { get; set; } Gets or sets a title of alternative text for the image.
Bytes { get; } Gets the image data store.
Document { get; } Gets the document of the node.
FileName { get; } Gets the file name.
FilePath { get; } Gets the path to the image file.
Format { get; } Gets the image’s format.
Height { get; set; } Gets or sets the height. This is the real height of the image in the MS OneNote document.
HorizontalOffset { get; set; } Gets or sets the horizontal offset.
HyperlinkUrl { get; set; } Gets or sets the hyperlink associated with the image.
IsBackground { get; set; } Gets whether the image is a background image.
virtual IsComposite { get; } Gets a value indicating whether this node is composite. If true the node can have child nodes.
LastModifiedTime { get; set; } Gets or sets last modified time.
NextSibling { get; } Gets the next node at the same node tree level.
NodeType { get; } Gets the node type.
OriginalHeight { get; } Gets the original height. This is the original width of the image, before resizing.
OriginalWidth { get; } Gets the original width. This is the original width of the image, before resizing.
ParentNode { get; } Gets the parent node.
PreviousSibling { get; } Gets the previous node at the same node tree level.
Tags { get; } Gets the list of all tags of a paragraph.
VerticalOffset { get; set; } Gets or sets the vertical offset.
Width { get; set; } Gets or sets the width. This is the real width of the image in the MS OneNote document.

Methods

Name Description
override Accept(DocumentVisitor) Accepts the visitor of the node.

Examples

Shows how to bind a hyperlink to an image.

// The path to the documents directory.
string dataDir = RunExamples.GetDataDir_Images(); 

var document = new Document();

var page = new Page(document);

var image = new Image(document, dataDir + "image.jpg") { HyperlinkUrl = "http://image.com" };

page.AppendChildLast(image);

document.AppendChildLast(page);

document.Save(dataDir + "Image with Hyperlink_out.one");

Shows how to set text description for an image.

// The path to the documents directory.
string dataDir = RunExamples.GetDataDir_Images();

var document = new Document();
var page = new Page(document);
var image = new Image(document, dataDir + "image.jpg")
            {
                AlternativeTextTitle = "This is an image's title!",
                AlternativeTextDescription = "And this is an image's description!"
            };
page.AppendChildLast(image);
document.AppendChildLast(page);

dataDir = dataDir + "ImageAlternativeText_out.one";
document.Save(dataDir);

Shows how to get an image from a document.

// The path to the documents directory.
string dataDir = RunExamples.GetDataDir_Images();

// Load the document into Aspose.Note.
Document oneFile = new Document(dataDir + "Aspose.one");

// Get all Image nodes
IList<Aspose.Note.Image> nodes = oneFile.GetChildNodes<Aspose.Note.Image>();

foreach (Aspose.Note.Image image in nodes)
{
    using (MemoryStream stream = new MemoryStream(image.Bytes))
    {
        using (Bitmap bitMap = new Bitmap(stream))
        {
            // Save image bytes to a file
            bitMap.Save(String.Format(dataDir + "{0}", Path.GetFileName(image.FileName)));
        }
    }
}

Shows how to get image’s meta information.

// The path to the documents directory.
string dataDir = RunExamples.GetDataDir_Images();

// Load the document into Aspose.Note.
Document oneFile = new Document(dataDir + "Aspose.one");

// Get all Image nodes
IList<Aspose.Note.Image> images = oneFile.GetChildNodes<Aspose.Note.Image>();

foreach (Aspose.Note.Image image in images)
{
    Console.WriteLine("Width: {0}", image.Width);
    Console.WriteLine("Height: {0}", image.Height);
    Console.WriteLine("OriginalWidth: {0}", image.OriginalWidth);
    Console.WriteLine("OriginalHeight: {0}", image.OriginalHeight);
    Console.WriteLine("FileName: {0}", image.FileName);
    Console.WriteLine("LastModifiedTime: {0}", image.LastModifiedTime);
    Console.WriteLine();
}

Shows how to add new image with tag.

// The path to the documents directory.
string dataDir = RunExamples.GetDataDir_Tags();

// Create an object of the Document class
Document doc = new Document();

// Initialize Page class object
Aspose.Note.Page page = new Aspose.Note.Page(doc);

// Initialize Outline class object
Outline outline = new Outline(doc);

// Initialize OutlineElement class object
OutlineElement outlineElem = new OutlineElement(doc);

// Load an image
Aspose.Note.Image image = new Aspose.Note.Image(doc, dataDir + "icon.jpg");

// Insert image in the document node
outlineElem.AppendChildLast(image);
image.Tags.Add(NoteTag.CreateYellowStar());

// Add outline element node
outline.AppendChildLast(outlineElem);

// Add outline node
page.AppendChildLast(outline);

// Add page node
doc.AppendChildLast(page);

// Save OneNote document
dataDir = dataDir + "AddImageNodeWithTag_out.one";
doc.Save(dataDir);

Shows how to add an image from file to a document with user defined properties.

// The path to the documents directory.
string dataDir = RunExamples.GetDataDir_Images();

// Load document from the stream.
Document doc = new Document(dataDir + "Aspose.one");

// Get the first page of the document.
Aspose.Note.Page page = doc.FirstChild;

// Load an image from the file.
Aspose.Note.Image image = new Aspose.Note.Image(doc, dataDir + "image.jpg")
                          {
                              // Change the image's size according to your needs (optional).
                              Width = 100,
                              Height = 100,

                              // Set the image's location in the page (optional).
                              HorizontalOffset = 100,
                              VerticalOffset = 400,

                              // Set image alignment
                              Alignment = HorizontalAlignment.Right
                          };

// Add the image to the page.
page.AppendChildLast(image);

Shows how to add an image from stream to a document.

// The path to the documents directory.
string dataDir = RunExamples.GetDataDir_Images();

// Create an object of the Document class
Document doc = new Document();

// Initialize Page class object
Aspose.Note.Page page = new Aspose.Note.Page(doc);

Outline outline1 = new Outline(doc);
OutlineElement outlineElem1 = new OutlineElement(doc);

using (FileStream fs = File.OpenRead(dataDir + "image.jpg"))
{

    // Load the second image using the image name, extension and stream.
    Aspose.Note.Image image1 = new Aspose.Note.Image(doc, "Penguins.jpg", fs)
                                   {
                                       // Set image alignment
                                       Alignment = HorizontalAlignment.Right
                                   };

    outlineElem1.AppendChildLast(image1);
}

outline1.AppendChildLast(outlineElem1);
page.AppendChildLast(outline1);

doc.AppendChildLast(page);

// Save OneNote document
dataDir = dataDir + "BuildDocAndInsertImageUsingImageStream_out.one";
doc.Save(dataDir);

Shows how to add an image from file to a document.

// The path to the documents directory.
string dataDir = RunExamples.GetDataDir_Images();

// Create an object of the Document class
Document doc = new Document();

// Initialize Page class object
Aspose.Note.Page page = new Aspose.Note.Page(doc);

// Initialize Outline class object and set offset properties
Outline outline = new Outline(doc);

// Initialize OutlineElement class object
OutlineElement outlineElem = new OutlineElement(doc);

// Load an image by the file path.
Aspose.Note.Image image = new Aspose.Note.Image(doc, dataDir + "image.jpg")
                          {
                              // Set image alignment
                              Alignment = HorizontalAlignment.Right
                          };

// Add image
outlineElem.AppendChildLast(image);

// Add outline elements
outline.AppendChildLast(outlineElem);

// Add Outline node
page.AppendChildLast(outline);

// Add Page node
doc.AppendChildLast(page);

// Save OneNote document
dataDir = dataDir + "BuildDocAndInsertImage_out.one";
doc.Save(dataDir);

See Also