I can't figure out why the following stops working when "WindowAbsolute" is replaced with "Graphics"?

    Background -> LightBlue], {Offset[{0, -15}, 15], {Left, 
     Bottom}}, {Left, Top}, "ClosingActions" -> {"OutsideMouseClick"}]];

enter image description here

  • 1
    $\begingroup$ interestingly, the attached cell contents update properly to show positions in graphics objects in other open notebooks (not those in the evaluation notebook). $\endgroup$
    – kglr
    Sep 24, 2018 at 21:48
  • $\begingroup$ Perhaps this isn't the correct way to instantiate an attached cell? $\endgroup$
    – M.R.
    Sep 25, 2018 at 22:17
  • 2
    $\begingroup$ M.R. curious about the use case(s) you have in mind. $\endgroup$
    – kglr
    Sep 25, 2018 at 22:20
  • $\begingroup$ Just spelunking into attached cells $\endgroup$
    – M.R.
    Sep 26, 2018 at 0:34
  • 1
    $\begingroup$ Perhaps there’s some other workaround way to get the graphics mouse position? $\endgroup$
    – M.R.
    Jan 16, 2019 at 15:27

1 Answer 1


I contacted WRI and it is a bug. Sadly it won't be fixed for v12 because it requires rewriting few fundamentals parts of code for AttachedCells.

As a workaround you can emit graphics position from graphics you care about. So wrap an EventHandler around your plots that will myVariable = MousePosition["Graphics"] on MouseMoved event.

You can use regular myVariable but you need to take care about scoping/collisions which I think is case dependent.

Let's create an example which assumes that everyiong is revolving around a single UI as opposed to a whole notebook. We can utilize Dynamic Wormholes for that:

, EventHandler[
    ListPlot @ Prime @ Range @ 25
  , { "MouseMoved" :> (position = CurrentValue[{"MousePosition", "Graphics"}])
    , "MouseExited" :> (position = None)
, Initialization :> (
   position = None

 ; MathLink`CallFrontEnd @ FrontEnd`AttachCell[
   , Cell[ 
       BoxData @ ToBoxes @ Framed @ DynamicModule[
         {}, Dynamic @ position, InheritScope -> True
     , "Output"
   , {Offset[{0, -15}, 15], {Left, Bottom}}
   , {Left, Top}
   , "ClosingActions" -> {"OutsideMouseClick"}

enter image description here

For general, notebook wide solution, you could save it in CurrentValue[nb, {TaggingRules, "GraphicsPosition"}] but somehow refreshing of Dynamic @ CurrentValue[nb, {TaggingRules, "GraphicsPosition"}] reacts very slowly to such changes (see answer edit history for a code example).

  • $\begingroup$ Ah right, duh, so this is definitely faster, obviously the to-from the kernel isn't the bottleneck here... $\endgroup$
    – M.R.
    Jan 21, 2019 at 22:19
  • $\begingroup$ @M.R. please see the edit, let me know if there is anything missing. $\endgroup$
    – Kuba
    Jan 22, 2019 at 22:51

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