Handles
All of the xpm commands described in this section operate on an XPM handle. Unlike other system extension objects, XPM handles are not explicitly created.
Instead, handles are included in your Tcl code within callouts from
XPM. For example, action pre- and post-processors and CALL
action bodies in the xlateId
variable.
Because XPM handles are created in Tcl callouts from XPM, xpm commands are not run interactively. The examples in this section show the command run as if it were interactive.