IP Surveillance Software Customisation

Hi Mike,

I am looking for IP Camera Surveillance systems where software API is accessible to add features like tranducers for enviromental monitoring and relay control. The hardware are via USB interface and window based from third party vendors.

Can you recommend any systems from CCTV Camera Pros where API is accessilble and documented for customisation ?

Thank you very much in advance for your advice

Regards,

James Lee