openapi: 3.1.0
info:
  title: Microsoft Windows 10 Windows Background Tasks Accelerometer Recognition 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: Recognition
paths:
  /ink/recognize:
    post:
      operationId: recognizeInkStrokes
      summary: Microsoft Windows 10 Recognize handwriting from ink strokes
      description: Performs handwriting recognition on ink strokes using InkRecognizerContainer. RecognizeAsync. Returns a list of InkRecognitionResult candidates with recognized text alternatives ranked by confidence.
      tags:
      - Recognition
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/RecognitionRequest'
      responses:
        '200':
          description: Recognition results returned
          content:
            application/json:
              schema:
                type: array
                items:
                  $ref: '#/components/schemas/InkRecognitionResult'
        '400':
          description: No strokes to recognize
  /ink/recognizers:
    get:
      operationId: listInkRecognizers
      summary: Microsoft Windows 10 List available ink recognizers
      description: Retrieves the list of installed handwriting recognizers using InkRecognizerContainer.GetRecognizers. Each recognizer supports a specific language and script for handwriting recognition.
      tags:
      - Recognition
      responses:
        '200':
          description: Successful retrieval of recognizers
          content:
            application/json:
              schema:
                type: array
                items:
                  $ref: '#/components/schemas/InkRecognizer'
components:
  schemas:
    BoundingRect:
      type: object
      properties:
        x:
          type: number
          format: float
        y:
          type: number
          format: float
        width:
          type: number
          format: float
        height:
          type: number
          format: float
    InkRecognizer:
      type: object
      description: A handwriting recognizer (InkRecognizer class)
      properties:
        id:
          type: string
          description: Unique recognizer identifier
        name:
          type: string
          description: Recognizer display name
    InkRecognitionResult:
      type: object
      description: Handwriting recognition result (InkRecognitionResult class)
      properties:
        boundingRect:
          $ref: '#/components/schemas/BoundingRect'
        textCandidates:
          type: array
          items:
            type: string
          description: Recognized text alternatives ranked by confidence
        selectedTextIndex:
          type: integer
          description: Index of the selected candidate
        strokeIds:
          type: array
          items:
            type: string
          description: IDs of strokes that produced this result
    RecognitionRequest:
      type: object
      properties:
        strokeIds:
          type: array
          items:
            type: string
          description: IDs of strokes to recognize (empty for all)
        recognitionTarget:
          type: string
          enum:
          - All
          - Selected
          - Recent
          description: Which strokes to target
externalDocs:
  description: Background Tasks Documentation
  url: https://learn.microsoft.com/en-us/windows/apps/windows-app-sdk/applifecycle/background-tasks