How can I add the camera video to a webpage?

Hanwha Techwin operates a STEP website (https://step.hanwha-security.com/usa_EN/Default.aspx/) for advanced users such as developers.
You can download the SDK from the Download page to see related information.

Hanwha Vision is the leader in global video surveillance with the world's best optical design / manufacturing technology and image processing technology focusing on video surveillance business for 30 years since 1990.