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I'm using Delphi and need to connect to IP camera thru Onvif and subscribe/receive events from the camera like line crossing, motion detection etc.

I'm using TVideograbber component to show the live video, but they don't support this. Any help/idea how can I do this ?

I want to do something as ONVIF Device Manager does.

Shraga Milon
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    According to the [ONVIF specification](http://www.onvif.org/specs/core/ONVIF-Core-Specification.pdf) chapter 9.12, the camera can post event to a [MQTT broker](https://mqtt.org/software/). – fpiette Mar 13 '23 at 07:33
  • Regarding MQTT: besides MQTT-only brokers, there are also "multi-protocol" message brokers which makes it easy to receive the message in a different protocol. So you may use (for example) AMQP, STOMP or OpenWire clients in your application to consume the messages. – mjn Mar 13 '23 at 07:54
  • Hi, I want to do something as "ONVIF Device Manager" does [https://sourceforge.net/projects/onvifdm/] – Shraga Milon Mar 13 '23 at 08:15
  • Maybe these can help you - https://github.com/Laex/Delphi-ONVIF, https://stackoverflow.com/questions/26088527/delphi-onvif-soap-calls, https://www.trichview.com/features/rvmedia.html, https://www.happytimesoft.com/ – IVO GELOV Mar 13 '23 at 08:40
  • Thanks IVOGELOV I'll check this info – Shraga Milon Mar 13 '23 at 10:46

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