Immediate window appearance check

[errbor]

Hey, i need some advice about how to check window appearance. For example if i make something like this:

Code:

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rep
  ifi win("somewindow")
    ;;do something
  else
    ;;do something else and long enough

the problem is if "somewindow" appears during <else> part it breaks logic. Perhaps i need to run some check in another thread but im noobie with it. Need such thing in EXE also.

So it should be like:
do something else and long enough
when "somewindow" appears stop it and do more code
when "somewindow" disappears continue it

Also would be nice (if any important) to make it work with any event not only with win.