openapi: 3.1.0
info:
  title: Microsoft Windows 10 Windows Background Tasks Accelerometer Preview 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: Preview
paths:
  /media/capture/sessions/{sessionId}/preview/start:
    post:
      operationId: startPreview
      summary: Microsoft Windows 10 Start camera preview
      description: Starts the camera preview stream using MediaCapture.StartPreviewAsync. The preview stream is displayed in a CaptureElement XAML control.
      tags:
      - Preview
      parameters:
      - name: sessionId
        in: path
        required: true
        description: Capture session identifier
        schema:
          type: string
      responses:
        '200':
          description: Preview started
        '404':
          description: Session not found
  /media/capture/sessions/{sessionId}/preview/stop:
    post:
      operationId: stopPreview
      summary: Microsoft Windows 10 Stop camera preview
      description: Stops the camera preview stream using MediaCapture.StopPreviewAsync.
      tags:
      - Preview
      parameters:
      - name: sessionId
        in: path
        required: true
        description: Capture session identifier
        schema:
          type: string
      responses:
        '200':
          description: Preview stopped
        '404':
          description: Session not found
externalDocs:
  description: Background Tasks Documentation
  url: https://learn.microsoft.com/en-us/windows/apps/windows-app-sdk/applifecycle/background-tasks