fxruby users - May 2005 - composite widgets

On Thu, 12 May 2005 09:25:03 -0600, Jacob Hanson <jacdx@jacobhanson.com>
wrote :
> If I leave .create in, I get a segfault. Is there some sort of
> flag that tells me that .create has already been run?
Yes. You can call created? on a widget (or any object whose class is derived
from FXId) to determine whether it''s been created yet. So something
like
this should work:

    def addLabel(text)
      FXLabel.new(self, text) do |label|
        label.create if created?
      end
      recalc
    end

As it sounds like you''ve discovered, your program will definitely crash
if
you call create() on a child widget (such as a label added in addLabel)
before you''ve called create() on the parent widget.