#9 Use the -listvariable option for $lbvarname and $lbvarval listboxes

[Enrico SEGRE]

Use the -listvariable option for $lbvarname and $lbvarval listboxes

• this could automate a lot of sync work with watchvars and watchvarsprops

• this could fix a Tcl bug I had once (but could not reproduce) when removing a variable from the watch window. Happened with scicoslab 4.4 (pre-release dated 9 déc 09), scipad 8.32.BP1. No autowatch mode was used but variables have been edited: listofrays watched, then edit, listofrays(1) watched, then remove, or something close

  can't unset "watchvarsprops(listofrays,value)": no such element in array
  can't unset "watchvarsprops(listofrays,value)": no such element in array
      while executing
  "unset watchvarsprops($var,value)"
      (procedure "syncwatchvarsfromlistbox" line 5)
      invoked from within
  "syncwatchvarsfromlistbox"
      invoked from within
  ".scipad.watch.f.vpw.f2.f2l.buttonRemove invoke"
      ("uplevel" body line 1)
      invoked from within
  "uplevel #0 [list $w invoke]"
      (procedure "tk::ButtonUp" line 24)
      invoked from within
  "tk::ButtonUp .scipad.watch.f.vpw.f2.f2l.buttonRemove"
      (command bound to event)