From: Philip Mak <pmak@...>
Date: 2002-10-21T13:15:19+09:00
Subject: Very weird thing in Ruby/Qt

setCaption() is behaving oddly in Ruby/Qt. I have the following simple
program:

--- begin hello_qt2.rb ---
require 'qt2'
include Qt2

a = QApplication.new([$0]+ARGV)

main = QWidget.new

if ARGV[0] == '1'
	main.setCaption("Qt says Hello")
elsif ARGV[0] == '2'
	main.setCaption("Hello, world!")
end

a.setMainWidget(main)
main.show

a.exec
--- end hello_qt2.rb ---

If I execute it as "ruby hello_qt2.rb 1", its window title will be "Qt
says Hello", as expected.

But if I execute it as "ruby hello_qt2.rb 2", its window title will be
"ruby" instead of "Hello, world!".

Does anyone know what gives?

(Trying various strings suggests a pattern: The caption is only
displayed if it starts with "Qt".)