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WinCC OA Documentation
WinCC OA Documentation
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  • Version Information
  • Concepts
  • Deployment
  • Security
  • Engineering
  • Data Management
  • Business Logic / Control
  • Data Visualization
  • Southbound Interfaces
  • Northbound Interfaces
  • Web Connectivity / Network Interfaces
  • User Management
  • Availability
  • Reporting
  • Addons
  • Reference Tables
  • Videos & Tutorials
  • WinCC OA Documentation
  • Disclaimer
  1. Home
  2. Business Logic / Control

    Endless possibilities in data processing for your projects.

  3. Control graphics
  4. AttentionEffect EWO functions
  • 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
      • Panel functions
      • Reference Functions
      • Arc
      • AttentionEffect EWO functions
        • "acceptDrops"

          Specifies whether drop events are enabled for this object.

        • "contextMenuPolicy"

          Defines how the respective widgets shows the context menu.

        • "effectType"

          Defines the effect type for the AttentionEffect EWO.

        • "focus"

          The attribute "focus"; returns TRUEif the object has the focus.

        • "font"

          Sets the font of an object.

        • "isActiveWindow"

          The attribute "isActiveWindow"; returns TRUE if this widget is the active window, otherwise FALSE.

        • "layoutDirection"

          Defines the widget's layout direction.

        • "start"

          Starts the animation of the AttentionEffect EWO.

        • "stop"

          Stops the animation of the AttentionEffect EWO.

        • "updatesEnabled"

          This attribute specifies whether updates of a widget (for example, a textEdit, slider, progress bar, zoom navigator, LCD number or thumb wheel) have been enabled.

        • "x", "y"

          The attributes x and y return the coordinate of an object (e.g. a textEdit, a progress bar, a slider, a zoom navigator, an LCD number or a thumb wheel). x returns the X coordinate of an object. y returns the Y coordinate of an object.

      • Bar trend
      • BarChart3D EWO
      • Button
      • Chart.ewo
      • Calendar
      • Cascade
      • 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
      • 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
      • TextEdit
      • Text field
      • Thumb wheel
      • ToggleSwitch EWO
      • Tree widget
      • Trend
      • VideoPlayer.ewo
      • WebView EWO

        All functions, specifically available for the WebView EWO.

      • 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.

    • API Manager

      The WinCC OA API (Application Programming Interface) offers a number of functions adding special Managers to this process control system.

    • NextGen Archiver Backend-API

      This chapter describes the NextGen Archiver Backend API

  • 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.

  • WinCC OA Documentation

    Basic information about terms and functions within the documentation.

  • Disclaimer

    A brief clarification of liability exclusions or legal notices.

AttentionEffect EWO functions

Available functions
"acceptDrops"
"contextMenuPolicy"
"effectType"
"focus"
"font"
"isActiveWindow"
"layoutDirection"
"start"
"stop"
"updatesEnabled"
"x", "y"
  • "acceptDrops"
    Specifies whether drop events are enabled for this object.
  • "contextMenuPolicy"
    Defines how the respective widgets shows the context menu.
  • "effectType"
    Defines the effect type for the AttentionEffect EWO.
  • "focus"
    The attribute "focus"; returns TRUEif the object has the focus.
  • "font"
    Sets the font of an object.
  • "isActiveWindow"
    The attribute "isActiveWindow"; returns TRUE if this widget is the active window, otherwise FALSE.
  • "layoutDirection"
    Defines the widget's layout direction.
  • "start"
    Starts the animation of the AttentionEffect EWO.
  • "stop"
    Stops the animation of the AttentionEffect EWO.
  • "updatesEnabled"
    This attribute specifies whether updates of a widget (for example, a textEdit, slider, progress bar, zoom navigator, LCD number or thumb wheel) have been enabled.
  • "x", "y"
    The attributes x and y return the coordinate of an object (e.g. a textEdit, a progress bar, a slider, a zoom navigator, an LCD number or a thumb wheel). x returns the X coordinate of an object. y returns the Y coordinate of an object.

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