I would like to build an application that updates the jabber presence status message. See image below for example.
I looked around the DevNet website, but I haven't found any information. Is there an API that would allow me to accomplish this?
You can do this from a web application with Jabber SDK (CAXL).
When you prepare the Presence object, just set the status to whatever you want:
You can also use SOAP Presence Web Services (PWS) to set rich presence.