Home
Business Logic / Control
Endless possibilities in data processing for your projects.
Control graphics
WebView EWO
All events and functions, specifically available for the WebView EWO.
WebView EWO Events
A list of events available for the WebView EWO.
"downloadStatusUpdated"
This event is triggered whenever the status of a download changes (for example, when a download starts, finishes, is canceled, or gets interrupted). It only works if the property acceptDownloads is set to TRUE.

Version Information
Release Notes, Update information, Certifications and Frequently Asked Questions.
Concepts
Your first step into modern and powerful process visualization.
Deployment
Topics you need to know before using WinCC OA.
Security
Go beyond the norm in cybersecurity.
Engineering
Powerful tools for easy or complex engineering tasks.
Data Management
Classify, structure and archive your data.
Business Logic / Control
Endless possibilities in data processing for your projects.
- Introduction to CTRL
  An introduction to the product's own programming language Control(CTRL).
- Control Classes
  The overview of classes available in Control.
- Types of Control Functions
  An overview of the types of functions distinguished within Control.
- Control graphics
  - Graphics objects
  - Attributes of graphics objects
  - Arc
  - AttentionEffect EWO functions
  - Bar trend
  - BarChart3D EWO
  - Button
  - Calendar
  - Cascade
  - Chart.ewo
  - Checkbox
  - Clock
  - Combobox
  - DateTimeEdit EWO functions
  - DialGauge EWO
  - DoubleSpinbox EWO
  - DpTreeView
  - DpTypeView
  - Embedded module
  - Frame
  - GIS Viewer EWO
    WinCC OA GIS Viewer provides the cartographic representation of objects in WinCC OA. This new feature provides numerous advantages, particularly in geographical distributed systems, like in Water, Traffic, Oil & Gas or Energy.
  - Label Functions
  - Layoutgroup functions
  - LCD number
  - Maps Widget - Properties and Functions
  - Panel functions
  - PDF Viewer EWO
  - PictureFlow EWO functions
  - Pipe
  - Polyline
  - Primitive text
  - Progress bar
  - Radio box
  - Rectangle
  - Reference Functions
  - Scheduler.ewo
  - Selection list
  - Slider
  - Spin button
  - Splitter
  - Tab
  - Table
    The available functions of the Table object.
  - TextEdit
  - Text field
  - Thumb wheel
  - ToggleSwitch EWO
  - Tree widget
  - Trend Functions
  - VideoPlayer.ewo
  - WebView EWO
    All events and functions, specifically available for the WebView EWO.
    - WebView EWO Functions
      A list of functions available for the WebView EWO.
    - WebView EWO Events
      A list of events available for the WebView EWO.
      - "downloadStatusUpdated"
        This event is triggered whenever the status of a download changes (for example, when a download starts, finishes, is canceled, or gets interrupted). It only works if the property acceptDownloads is set to TRUE.
      - "featurePermissionRequested"
        This event happens when a website (url) inside the WebView EWO asks for permission to use a feature (feature).
      - "loadSnippetFinished"
        This event happens when Control_Grafik/loadSnippet.html finishes loading the HTML page into the WebView EWO. It also occurs for WebView EWOs in ULC UX if the property ulcClientSideWidget is set to true. (This is different from loadFinished, which does not happen in these cases.)
  - Zoom Navigator
    Functions available for the Zoom Navigator widget.
- CONTROL Functions
- CtrlExtension
  The CtrlExtension allows the addition of custom C++ code.
- CTRL Debugger
  You can use the CTRL debugger to debug the Control programming language. The debugger can be used via its own panel, which also enables the monitoring and setting of variable values during the execution of a script.
- SQL in CONTROL
  The database functions enable you to quickly carry out value queries on data points and elements.
- WinCC OA JavaScript Manager for Node.js
  The WinCC OA JavaScript Manager for Node.js is a manager that allows for the integration of the TypeScript/JavaScript runtime environment Node.js® into WinCC OA.
- API Manager
  The WinCC OA API (Application Programming Interface) offers a number of functions adding special Managers to this process control system.
Data Visualization
User interfaces, Trends and Reports for every purpose and device.
Southbound Interfaces
The process connection to the actual machines/sensors.
Northbound Interfaces
Your portal to the cloud or supervising systems.
Web Connectivity / Network Interfaces
Data exchange, APIs and web technologies
User Management
All about authorization, authentication and login-customization.
Availability
How to get your system uptime to the maximum.
Reporting
Create state of the art project reports without limits.
Addons
Useful tools and enhancements for special demands.
Reference Tables
Detailed and extensive content for special project adaptation.
Videos & Tutorials
Explore the capabilities of WinCC OA with our carefully selected collection of video tutorials and guides.
Documentation
Basic information about terms and functions within the documentation.
Support & Services
An experienced team of support agents, consultants and trainers are ready to facilitate active partnerships with our customers, so they can profit from our comprehensive service.
Disclaimer
A brief clarification of liability exclusions or legal notices.

"downloadStatusUpdated"

This event is triggered whenever the status of a download changes (for example, when a download starts, finishes, is canceled, or gets interrupted). It only works if the property acceptDownloads is set to TRUE.

Synopsis

downloadStatusUpdated(uint downloadId, string filepath, int state, mapping params);

Parameters


Parameter	Description
downloadId	The ID of the download you want to resume. This ID is provided in the downloadStatusUpdated event.
filePath	The absolute path to the file.
state	The new state of the download. For more details, see the QT Documentation.
params	Additional parameters.

Details

The params mapping contains the following elements:

string mimeType
string downloadDirectory
string downloadFileName
ulong totalBytes
int interruptReason (see the QT Documentation)
string interruptReasonString
string url

Assignment

WebView EWO