Microsoft Windows 10
Microsoft Windows 10 Strokes API

The Strokes API from Microsoft Windows 10 — 2 operation(s) for strokes.
Documentation GitHub OpenAPI
OpenAPI Specification

openapi: 3.1.0
info:
  title: Microsoft Windows 10 Windows Background Tasks Accelerometer Strokes API
  description: API for running code in the background when an application is suspended or not running. Based on the Windows.ApplicationModel.Background namespace, it supports time-triggered, system-triggered, and maintenance-triggered background tasks. Key classes include BackgroundTaskBuilder, BackgroundTaskRegistration, SystemTrigger, TimeTrigger, and BackgroundTaskCompletedEventArgs.
  version: 1.0.0
  contact:
    name: Microsoft Developer Support
    url: https://learn.microsoft.com/en-us/windows/apps/windows-app-sdk/applifecycle/background-tasks
  license:
    name: Microsoft Software License
    url: https://www.microsoft.com/en-us/legal/terms-of-use
servers:
- url: https://api.windows.com
  description: Windows Platform API
tags:
- name: Strokes
paths:
  /ink/strokes:
    get:
      operationId: listInkStrokes
      summary: Microsoft Windows 10 List ink strokes
      description: Retrieves the list of ink strokes from an InkStrokeContainer. Each InkStroke contains point data, drawing attributes (color, size, pen tip shape), and bounding rectangle information.
      tags:
      - Strokes
      responses:
        '200':
          description: Successful retrieval of ink strokes
          content:
            application/json:
              schema:
                type: array
                items:
                  $ref: '#/components/schemas/InkStroke'
    post:
      operationId: addInkStroke
      summary: Microsoft Windows 10 Add an ink stroke
      description: Adds a new ink stroke to the InkStrokeContainer using InkStrokeBuilder. The stroke is created from a series of ink points with position, pressure, tilt, and timestamp data, combined with InkDrawingAttributes for visual styling.
      tags:
      - Strokes
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/CreateInkStrokeRequest'
      responses:
        '201':
          description: Ink stroke created
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/InkStroke'
        '400':
          description: Invalid stroke data
  /ink/strokes/{strokeId}:
    get:
      operationId: getInkStroke
      summary: Microsoft Windows 10 Get ink stroke details
      description: Retrieves detailed information about a specific ink stroke including its points, drawing attributes, and bounding rectangle.
      tags:
      - Strokes
      parameters:
      - name: strokeId
        in: path
        required: true
        description: Unique stroke identifier
        schema:
          type: string
      responses:
        '200':
          description: Successful retrieval of ink stroke
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/InkStrokeDetail'
        '404':
          description: Stroke not found
    delete:
      operationId: deleteInkStroke
      summary: Microsoft Windows 10 Delete an ink stroke
      description: Deletes a specific ink stroke from the container using InkStroke.Selected and InkStrokeContainer.DeleteSelected methods.
      tags:
      - Strokes
      parameters:
      - name: strokeId
        in: path
        required: true
        description: Unique stroke identifier
        schema:
          type: string
      responses:
        '204':
          description: Stroke deleted successfully
        '404':
          description: Stroke not found
components:
  schemas:
    InkPoint:
      type: object
      description: A point in an ink stroke (InkPoint class)
      properties:
        x:
          type: number
          format: float
          description: X coordinate
        y:
          type: number
          format: float
          description: Y coordinate
        pressure:
          type: number
          format: float
          description: Pressure value (0.0 to 1.0)
        tiltX:
          type: number
          format: float
          description: Tilt along X axis in degrees
        tiltY:
          type: number
          format: float
          description: Tilt along Y axis in degrees
        timestamp:
          type: integer
          format: int64
          description: Timestamp in microseconds
      required:
      - x
      - y
      - pressure
    InkStrokeDetail:
      type: object
      description: Detailed ink stroke information
      properties:
        id:
          type: string
        points:
          type: array
          items:
            $ref: '#/components/schemas/InkPoint'
        boundingRect:
          $ref: '#/components/schemas/BoundingRect'
        drawingAttributes:
          $ref: '#/components/schemas/InkDrawingAttributes'
        strokeDuration:
          type: string
          description: Duration of the stroke
    InkDrawingAttributes:
      type: object
      description: Visual attributes for ink rendering (InkDrawingAttributes class)
      properties:
        color:
          type: string
          description: Stroke color in ARGB hex format
          example: '#FF000000'
        size:
          type: object
          properties:
            width:
              type: number
              format: float
            height:
              type: number
              format: float
          description: Pen tip size
        penTip:
          type: string
          enum:
          - Circle
          - Rectangle
          description: Pen tip shape
        drawAsHighlighter:
          type: boolean
          description: Whether to render as a highlighter
        fitToCurve:
          type: boolean
          description: Whether to use Bezier curve fitting
        ignorePressure:
          type: boolean
          description: Whether to ignore pressure data
        ignoreTilt:
          type: boolean
          description: Whether to ignore tilt data
    BoundingRect:
      type: object
      properties:
        x:
          type: number
          format: float
        y:
          type: number
          format: float
        width:
          type: number
          format: float
        height:
          type: number
          format: float
    CreateInkStrokeRequest:
      type: object
      properties:
        points:
          type: array
          items:
            $ref: '#/components/schemas/InkPoint'
          description: Ordered list of ink points
        drawingAttributes:
          $ref: '#/components/schemas/InkDrawingAttributes'
      required:
      - points
    InkStroke:
      type: object
      description: An ink stroke (InkStroke class)
      properties:
        id:
          type: string
          description: Unique stroke identifier
        pointCount:
          type: integer
          description: Number of ink points in the stroke
        boundingRect:
          $ref: '#/components/schemas/BoundingRect'
        drawingAttributes:
          $ref: '#/components/schemas/InkDrawingAttributes'
      required:
      - id
externalDocs:
  description: Background Tasks Documentation
  url: https://learn.microsoft.com/en-us/windows/apps/windows-app-sdk/applifecycle/background-tasks
Microsoft Windows 10 Strokes API

Documentation

Specifications

Other Resources

OpenAPI Specification
