All parameters of camera can be controlled with CPARAPI. This description is valid for firmware V2_60.
The interface is briefly described directly on the camera self:http://camera_ip/cparapi/help.cgi
The request has following syntax: http://camera_ip/cparapi/param.cgi?action=update&(parameter_name)=(paramater_value)
http://camera_ip/cparapi/param.cgi?action=update&ptz.zoom=500
The request has following syntax:http://camera_ip/cparapi/param.cgi?action=list&group=(parameter_name)
http://camera_ip/cparapi/param.cgi?action=list&group=ptz.zoom
ptz.zoom=2000
ptz.zoomDigitalEnabled=no
Description of some parameters is in CPARAPI Parameters.
List of all current parameters can be get from camera using:http://camera_ip/cparapi/param.cgi?action=list
To restart the camera:http://camera_ip/cparapi/sys.cgi?action=restart_cam