An example of .vic config file (a custom user setting)

.vic.tcl.transmit_but

#!/bin/sh
#\
exec wish4.2 "$0" "$@"
#

proc user_fps {val} {
 global fps_slider
 $fps_slider set $val
}

proc user_bps {val} {
        global bps_slider
        $bps_slider set $val
}
proc user_quality {val} {
        global qscale
        $qscale set $val
}

proc user_transmit {} {
        global transmitButtonState transmitButton logFrameChannel
        $transmitButton invoke
        #destroy .b

}

proc user_hook {} {
        checkbutton .b -text "Transmit" -relief raised -command user_transmit
        pack .b
}