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DMT_EditorControl.getCurrentRenderedAreaImage() method

This API is provided as a beta preview for developers and may change based on feedback that we receive. Do not use this API in a production environment.

Get the canvas rendering region image

Signature

function getCurrentRenderedAreaImage(tabId?: string): Promise<Blob | undefined>;

Parameters

Parameter	Type	Description
tabId	string	(Optional) Tab ID. If not passed in, the canvas with the last input focus will be obtained

Returns

Promise<Blob | undefined>

• Blob-format image data of the canvas rendering region

Example

// 1. 打开一个原理图页，确定截图的画布
const pages = await eda.dmt_Schematic.getAllSchematicPagesInfo();
const tabId = await eda.dmt_EditorControl.openDocument(pages[0].uuid);

// 2. 获取该画布当前渲染区域的图像
const image = await eda.dmt_EditorControl.getCurrentRenderedAreaImage(tabId);

// 3. 读取 Blob 的基本信息（字节数与 MIME 类型）
console.log('isBlob:', image instanceof Blob);
console.log('size:', image.size);
console.log('mimeType:', image.type);