# EyelinkDoTrackerSetup(el, el.ENTER\_KEY) does not show the eye

**URL:** <https://psychtoolbox.discourse.group/t/eyelinkdotrackersetup-el-el-enter-key-does-not-show-the-eye/1144>\
**Category:** Uncategorized\
**Created:** [February 14, 2007, 6:27pm UTC](https://psychtoolbox.discourse.group/t/eyelinkdotrackersetup-el-el-enter-key-does-not-show-the-eye/1144 "2007-02-14T18:27:14Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Allen\_Ingling](https://avatars.discourse-cdn.com/v4/letter/a/a183cd/32.png) [@Allen\_Ingling](https://psychtoolbox.discourse.group/u/Allen_Ingling)\
**Post date:** [February 14, 2007, 6:27pm UTC](https://psychtoolbox.discourse.group/t/eyelinkdotrackersetup-el-el-enter-key-does-not-show-the-eye/1144/1 "2007-02-14T18:27:14Z")

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Is this a known bug in PTB3 on windows? The corresponding button of  
this function on the eyetracker gets activated when I send  
el.ENTER\_KEY along with EyelinkDoTrackerSetup but on my experimental  
PC I'm stuck with a gray screen.  
Can anyone confirm this? I also tried to use 13 instead of  
el.ENTER\_KEY. Same result. The eyetracker does get the signal but the  
display does not show what it is supposed to show.

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**Author:** ![franswcornelissen](https://avatars.discourse-cdn.com/v4/letter/f/df705f/32.png) [@franswcornelissen](https://psychtoolbox.discourse.group/u/franswcornelissen)\
**Post date:** [February 14, 2007, 7:57pm UTC](https://psychtoolbox.discourse.group/t/eyelinkdotrackersetup-el-el-enter-key-does-not-show-the-eye/1144/2 "2007-02-14T19:57:43Z")

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Andreas,  
  
This is a known shortcoming of the current ETB , for any flavour of openGL PTB.   
Only the mac OS9 version has this feature implemented.  
While it is high on our own wishlist, it requries quite a bit of extra coding, and so simply   
hasn't made into the current implementation.  
  
As always, we'd welcome any contributions towards improving the ETB (and PTB) ;-)  
  
Gr.  
Frans  
  
  
  

> --- In [psychtoolbox@yahoogroups.com](mailto:psychtoolbox@yahoogroups.com), "Andreas Kotowicz" \<kotowicz@...\> wrote:  
> \>  
> \> Is this a known bug in PTB3 on windows? The corresponding button of  
> \> this function on the eyetracker gets activated when I send  
> \> el.ENTER\_KEY along with EyelinkDoTrackerSetup but on my experimental  
> \> PC I'm stuck with a gray screen.  
> \> Can anyone confirm this? I also tried to use 13 instead of  
> \> el.ENTER\_KEY. Same result. The eyetracker does get the signal but the  
> \> display does not show what it is supposed to show.  
> \>