We use the alarm listener function in the SDK, I have also tried the ISAPI function but obviously you have to have an active connection to site 24/7.
If you don't like the idea of it overloading with messages as it constantly sends alarms until it clears down, you could try creating an SMTP...
Hikvision network SDK, I'm guessing you will be using windows they have a 32 and 64 bit version, the demo has options for subscribing to alarms this is where it stays logged in to the unit 24/7 or you can input an IP address and port into the NVR or camera and the unit can send the alarms to...
Tolting Colt Acres in the example you mention update all the hikvision sdk.dll's with the latest ones from hikvisions website, that should get it recieving alarm data
Ive found a more up todate version of the examples on the chinese version of the site, theres also a playback download example if that's any use to you
海康威视是以视频为核心的物联网解决方案提供商
I know its to do with video playback but its the only thread i've seen active involving the Hikvision SDK, has anyone had any experience with Net_DVR_StartListenV30?
When starting the listen i get error 109 - Alarm component is failed to upload
Ive got an old set of the SDK libraries from 2015...