In one mode of operation, a system command can be built out of all the objects on the panel and their values. This is a scaled-down, ``quick and dirty'' alternative to my interactive processing environment, IPE. IPE has also benefited from my work on xvpanel and is becoming much easier to use.
In another mode of operation, a separate action is attached to each object on the panel. This may make xvpanel useful for purposes other than pipelined seismic processing.
A few problems remain with xvpanel. One is the length of the calling sequence needed to generate typical panels. While it can all be put on one line, as the title of my paper promised, it is quite cumbersome. Arguments can easily be forgotten or entered out of order. Perhaps I could provide some kind of interactive panel builder that prompts for parameters, or come up with a way to make things default better so that missing arguments are not fatal.