OneNote.Image class

The request context associated with the object. This connects the add-in's process to the Office host application's process.

context: RequestContext;

Property Value

Gets or sets the description of the Image.

description: string;

Property Value

Remarks

[ API set: OneNoteApi 1.1 ]

Gets or sets the height of the Image layout.

height: number;

Property Value

Remarks

[ API set: OneNoteApi 1.1 ]

Gets or sets the hyperlink of the Image.

hyperlink: string;

Property Value

Remarks

[ API set: OneNoteApi 1.1 ]

Gets the ID of the Image object.

readonly id: string;

Property Value

Remarks

[ API set: OneNoteApi 1.1 ]

Gets the data obtained by OCR (Optical Character Recognition) of this Image, such as OCR text and language.

readonly ocrData: OneNote.ImageOcrData;

Property Value

Remarks

[ API set: OneNoteApi 1.1 ]

Examples

let image = null;

await OneNote.run(async (context) => {
    // Get the current outline.
    const outline = context.application.getActiveOutline();

    // Queue a command to load paragraphs and their types.
    outline.load("paragraphs")
    await context.sync();

    for (let i=0; i < outline.paragraphs.items.length; i++) {
        const paragraph = outline.paragraphs.items[i];
        if (paragraph.type == "Image")
        {
            image = paragraph.image;
        }
    }
    if (image != null) {
        image.load("ocrData");
    }

    await context.sync();
            
    // Log ocrText and ocrLanguageId.
    console.log(image.ocrData.ocrText);
    console.log(image.ocrData.ocrLanguageId);
});

Gets the PageContent object that contains the Image. Throws if the Image is not a direct child of a PageContent. This object defines the position of the Image on the page.

readonly pageContent: OneNote.PageContent;

Property Value

Remarks

[ API set: OneNoteApi 1.1 ]

Gets the Paragraph object that contains the Image. Throws if the Image isn't a direct child of a Paragraph.

readonly paragraph: OneNote.Paragraph;

Property Value

Remarks

[ API set: OneNoteApi 1.1 ]

Gets or sets the width of the Image layout.

width: number;

Property Value

Remarks

[ API set: OneNoteApi 1.1 ]

Gets the base64-encoded binary representation of the Image. Example: data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAADIA...

getBase64Image(): OfficeExtension.ClientResult<string>;

Returns

Remarks

[ API set: OneNoteApi 1.1 ]

Examples

let image = null;
let imageString;

await OneNote.run(async (context) => {
    // Get the current outline.
    const outline = context.application.getActiveOutline();
    
    // Queue a command to load paragraphs and their types.
    outline.load("paragraphs/type")
    await context.sync();
    for (let i=0; i < outline.paragraphs.items.length; i++) {
        const paragraph = outline.paragraphs.items[i];
        if (paragraph.type == "Image")
        {
            image = paragraph.image;
        }
    }

    if (image != null) {
        imageString = image.getBase64Image();
        await context.sync();
    }

    console.log(imageString);
});

Queues up a command to load the specified properties of the object. You must call context.sync() before reading the properties.

load(options?: OneNote.Interfaces.ImageLoadOptions): OneNote.Image;

Parameters

Returns

Queues up a command to load the specified properties of the object. You must call context.sync() before reading the properties.

load(propertyNames?: string | string[]): OneNote.Image;

Parameters

Returns

Examples

await OneNote.run(async (context) => {
    // Get the current outline.
    const outline = context.application.getActiveOutline();
    let image = null;
    
    // Queue a command to load paragraphs and their types.
    outline.load("paragraphs/type")
    await context.sync();

    for (let i=0; i < outline.paragraphs.items.length; i++) {
        const paragraph = outline.paragraphs.items[i];
        if (paragraph.type == "Image")
        {
            image = paragraph.image;
        }
    }

    if (image != null) {
        // Load all properties and relationships.
        image.load(["id", "width", "height", "description", "hyperlink"]);
        await context.sync();
    }

    if (image != null) {                   
        console.log("image " + image.id + " width is " + image.width + " height is " + image.height);
        console.log("description: " + image.description);                   
        console.log("hyperlink: " + image.hyperlink);
    }
});

Queues up a command to load the specified properties of the object. You must call context.sync() before reading the properties.

load(propertyNamesAndPaths?: {
            select?: string;
            expand?: string;
        }): OneNote.Image;

Parameters

Returns

Sets multiple properties of an object at the same time. You can pass either a plain object with the appropriate properties, or another API object of the same type.

set(properties: Interfaces.ImageUpdateData, options?: OfficeExtension.UpdateOptions): void;

Parameters

Returns

Sets multiple properties on the object at the same time, based on an existing loaded object.

set(properties: OneNote.Image): void;

Parameters

Returns

Overrides the JavaScript toJSON() method in order to provide more useful output when an API object is passed to JSON.stringify(). (JSON.stringify, in turn, calls the toJSON method of the object that's passed to it.) Whereas the original OneNote.Image object is an API object, the toJSON method returns a plain JavaScript object (typed as OneNote.Interfaces.ImageData) that contains shallow copies of any loaded child properties from the original object.

toJSON(): OneNote.Interfaces.ImageData;

Returns

Track the object for automatic adjustment based on surrounding changes in the document. This call is a shorthand for context.trackedObjects.add(thisObject). If you're using this object across .sync calls and outside the sequential execution of a ".run" batch, and get an "InvalidObjectPath" error when setting a property or invoking a method on the object, you need to add the object to the tracked object collection when the object was first created.

track(): OneNote.Image;

Returns

Release the memory associated with this object, if it has previously been tracked. This call is shorthand for context.trackedObjects.remove(thisObject). Having many tracked objects slows down the host application, so please remember to free any objects you add, once you're done using them. You'll need to call context.sync() before the memory release takes effect.

untrack(): OneNote.Image;

Returns