I do not understand. you need to position points/morphs in a canvas ? In that case you need a) a canvas and b) the points. This cannot (and should not) be achieved with different widgets (spec) but with just one : a morph there acts as a canvas. So, instead of going to the window of the presenter (which,, by the way, may or may not exist) I would just add a morph, e.g. : (this example is just a script, in real life you would do things differently) presenter := SpPresenter new. presenter layout: (SpBoxLayout newVertical     add: (morphPresenter := presenter newMorph);     yourself). morph := Morph new color: Color white. morphPresenter morph: morph. morph color: Color white. 1 to: 10 do: [ :index |     | pointMorph |     pointMorph := Morph new         color: Color random;         extent: 10@10;         yourself.     pointMorph position: 300 atRandom @ 200 atRandom.     morph addMorph: pointMorph ]. presenter open. this will give you something like this: getting the real size of a window is not really provided by the api except for its initial status (after that, you can suscribe to the resize event if you want to know the new size), but you shouldn't needed that  (and getting the SpWindow which is a morph is not the way to go, since this is not portable). Spec is a framework to make and place **widgets**, as soon as you need something that is not a widget, you need to go to a lower level than it (hence, rendering a morph). Esteban On 17/06/2024 00:08, Haroldo Stenger wrote:

hi all there , I'm playing around with this example from the nice Spec book, which I try to get right for spec2. That's all right. I modify the example for having two counters, one bound to the class of the Surveys and then one for each survey. That was a good learning experience. Then I added a button to spawn further a Survey which participates of the class-bound count of votes. That's all right too. Then I started to write a method that given a Rectangle, and a number n, gives an array of n Points that are in the enclosed circle of the rectangle, more or less. Waht I want to achieve es that for each added Survey, its Spec2 - Morph window gets positioned in one of these points, but before rendering it, re position all the already existing Spec2 - Morphs Survey windows in the rest of the points of the array (being n the total number of Surveys after adding one). I'm facing two challenges: (a) getting the list of current positions of Spec2 - Morph Surveys already existing. (b) moving a Spec2 - Morph window to another position. I'm pretty stuck trying to make my way for this two goals, so any kind help will be really welcome. Yo can import the files into a Pharo12 image with the File manager, then Changelist Browser and selecting all the lines and "file in".

thanks in advance ! Haroldo