小编use*_*409的帖子

平台:

Darwin * -*s-MacBook-Pro.local 11.4.2 Darwin内核版本11.4.2:8月23日星期四16:25:48 PDT 2012; root:xnu-1699.32.7~1/RELEASE_X86_64 x86_64

Ruby:

ruby 2.0.0p0(2013-02-24修订版39474)[x86_64-darwin11.4.2](由rvm安装)

Qt:

qt:稳定4.8.4(瓶装),HEAD

代码:

require 'Qt'

class Foo < Qt::Object

    signals :my_signal #also tried 'my_signal()'
    slots 'my_slot()'

    def initialize(parent = nil)
        super(parent)

        puts "connecting signal and slot"
        Qt::Object.connect(self, SIGNAL('my_signal()'), self, SLOT('my_slot()'))
        # also tried => connect(self, SIGNAL('my_signal()'), self, SLOT('my_slot()'))

    end

    def emit_my_signal
        puts "sending signal"
        emit my_signal
    end

    def my_slot
        puts "received message from signal"
    end
end


o = Foo.new
o.emit_my_signal

输出: …