On 18 Feb 2014, at 17:26, Noury Bouraqadi <bouraq...@gmail.com> wrote:

> Hi,
> 
> For my Pharo Lecture I want to show students how to make a desktop app in 
> Pharo 3.0 (Yes I'm using a Beta for my lecture, because Pharo 3 is cool :-)
> 
> - I wonder if there are any new cool solution to strip out dev tools or at 
> least lock the world menu?

To prevent the current user to open debuggers:
Smalltalk tools userManager currentUser permissions canDebug: false.

(pay attention to not prevent yourself to execute code :P)

> 
> - Is there any way to set the OS window size other than simply turning it 
> full screen?

DisplayScreen hostWindowSize: ext

Ben

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