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VIDEO_OA_ewoInit()
The video EWO uses this function to connect to the data point element .widget.command of its workstation (if the workstation exists).

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  - Video Basics
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  - CTRL Functions
    - VIDEO_OA_getDefaultStreamNumForDisplay()
      Returns the default stream for a display.
    - VIDEO_OA_getDefaultStreamNumForWorkstation()
      Returns the default stream for a user interface.
    - getFrameTimestampTickInterval()
      The function of provides information about the capture time of video frames.
    - VIDEO_OA_getStreamInfo()
      Returns the stream information, which is saved in a camera data point
    - VIDEO_OA_getStreamInfoForShowLiveDefaultDisplay()
      Returns the stream information to open a live stream on a display monitor. The default stream is used.
    - VIDEO_OA_getStreamInfoForShowLiveDefaultWidget()
      Returns the stream information to open a live stream on an EWO. The default stream is used.
    - VIDEO_OA_filterKeywordValue()
      Returns the value of a keyword.
    - VIDEO_OA_getUserPermission()
      The function returns the authorization for the given action.
    - VIDEO_OA_getWorkstationDp()
      Returns the data point name of the workstation for the given manager number.
    - onFrameRate()
    - onLatestFrameTimestamp
      The Event with which the frame timestamp information is reported for video_oa/control_functions/VIDEO_OA_getFrameTimestampTickIntervall.html and video_oa/control_functions/VIDEO_OA_setFrameTimestampTickIntervall.html.
    - onStreamStateChanged()
      The event which is triggerd by a change in the stream state .
    - VIDEO_OA_openMessageInfo()
      This function opens an information window and you can adjust the message individually.
    - VIDEO_OA_openMessageInfoAnswer()
      This function opens a dialog and you can adjust the message individually.
    - VIDEO_OA_openMessageWarning()
      This function opens a warning window and you can adjust the message individually.
    - VIDEO_OA_openNoPermission()
      Opens an information window. The window informs about the required authorization level.
    - VIDEO_OA_openObjectExplorer()
      This function opens the object explorer.
    - VIDEO_OA_getDefaultStreamNumForDisplay()
      Returns the default stream for a display.
    - setFpsReportInterval()
      The function delivers the current frame rate.
    - setFrameTimestampTickInterval()
      The function sets the capture time of video frames.
    - showLiveRtsp()
      This function starts the live streaming functionality of the video application.
    - Verwaltung von Kameras
    - Video EWO
      - VIDEO_OA_ewoDragDrop()
        An EWO will open a live image as soon as a camera data point will be dropped to the EWO.
      - VIDEO_OA_ewoInit()
        The video EWO uses this function to connect to the data point element .widget.command of its workstation (if the workstation exists).
    - Konfigurationen und Sequenzen
    - Bedienpult
    - HID
  - Graphical objects
  - Data Point Types
  - Video Widget
  - Streaming
  - vimacc OA - Release Notes

VIDEO_OA_ewoInit()

The video EWO uses this function to connect to the data point element .widget.command of its workstation (if the workstation exists).

Synopsis

void VIDEO_OA_ewoInit();

Return Value

None.

Errors

Missing or wrong arguments.

Description

Use this function only in the "Initialize" script of a video EWO. If you add the function to the script, the video EWO will connect to the data point element .widget.command of its workstation (if it exists). You can control the EWO using this data point element. You can find the available commands in the documentation of the data model. The function contains in addition all functions for a redundancy switch. If you switch the system in a redundant video system, the stream will be reopened since the responsible video server was possibly changed. You can set debug flags online for an EWO by using the object explorer likewise only if you use the function in the "Initialize" script of the EWO.

EXAMPLE

main()
{
  VIDEO_OA_ewoInit();
}

Assignment

Video functions

Availability

UI, CTRL