[REBOL] Re: listen to events only for a specific window?
From: arolls:bigpond:au at: 14-Jul-2001 2:13
I'm sorry, but in both these examples
the original window still receives
events.
The reason I wanted to do this is to
catch unforseen situations in VID
code that produce an error and halt
rebol.
See my anim/VR4.r "Dilbert" demo.
You can uncomment a bit of code
which reveals a button, which, when
pressed, gets angry and produces an
error.
This usually has the effect of
stopping the fun completely. You
have to restart the program in this
case.
But I have put in a mechanism for
catching the error and showing a
window, just as in the example
at the very bottom of this email,
with details of the error and some
buttons to let the user decide what
to do. Unfortunately, after showing
the error window to the user, the
first window keeps going.
If there is a situation in some
code in the future where an error
occurs at each "tick" of an
animation, I can imagine my
error-trapping code opening new
error message windows 30 times per
second. Not very friendly.
I need to stop the animation!
The first window needs to stop until
the user has decided what to do
about it. (Could be, auto-email author.)
I hope you understand me now. :)
Anton.
