Didn't tried myself but there is a tracing library for X called xscope.
Is not included by default in most distros.

http://xorg.freedesktop.org/archive/individual/app/xscope-1.4.tar.gz

Don't bother with xev, does not capture clicks inside Pharo.

Hern��n



2014/1/11 Martin McClure <martin@hand2mouse.com>
I saw this a time or two in Pharo 2.0, and now I've seen it in Pharo 3.0 -- I launch my working image and all my windows display, but it doesn't respond to mouse clicks. Keystrokes don't seem to do anything either, other than alt-., which dumps the text below to the terminal, but doesn't seem to do anything else.

Any ideas how to debug this?

I'm running on Linux. Pharo 3.0 last updated on Jan 7.

Thanks,

-Martin

---------

User Interrupt
Delay>>wait in Block: [ delaySemaphore wait ]
BlockClosure>>ifCurtailed:
Delay>>wait
WorldState>>interCyclePause:
WorldState>>doOneCycleFor:
WorldMorph>>doOneCycle
MorphicUIManager>>spawnNewProcess in Block: [ ...
BlockClosure>>newProcess in Block: [ ...