From: Manfred Hansen <manfred@...>
Date: 2002-02-24T21:42:26+09:00
Subject: Re: QLineEdit

Hello,

the connect is wrong, here is the right one.
QRObject::connect_rslot(@textIn,QSIGNAL("textChanged(const QString 
&)"),@verarbeiter,'neuerTextSlot(const QString &)')

another little mistake is def neuerTextSlot()
the correct one is ef neuerTextSlot(ps)

Manfred

Manfred Hansen wrote:

> Hi,
> 
> i try to print out the text from QLineEdit
> 
> #!/usr/local/bin/ruby
> 
> require "qt2"
> include Qt2
> 
> class Fenster < QVBox
> 
>    def  initialize
>        @verarbeiter = Verarbeiter.new(self,"SLOT")
>        @textIn = QLineEdit.new(self,"TextIn","SIGNAL")
>        quit = QPushButton.new("Quit",self,"quit")
>        
connect(quit,QSIGNAL("clicked()"),QApplication::qApp,QSLOT("quit()"))
>       connect (@textIn,QSIGNAL("textChanged(const QString
> &)"),@verarbeiter,QSLOT("@neuerTextSlot(const QString&)"))
>    end
> 
> end
> 
> class Verarbeiter < QWidget
> 
>    def neuerTextSlot()
>    #def neuerTextSlot(const QString ps)
>       print ps
>    end
> end
> 
> 
> a = QApplication.new( [$0]+ARGV)
> b = Fenster.new                # Das Objekt der Klasse QWidget wird
> erzeugt a.setMainWidget( b )
> b.show()
> a.exec()
> 
> 
> 
> Here is my error message
> 
> hansen@hansen-lx:~/ruby$ ./qlineedit1.rb
> QObject::connect: No such slot QWidget::@neuerTextSlot(const QString&)
> QObject::connect:  (sender name:   'SIGNAL')
> QObject::connect:  (receiver name: 'SLOT')
> 
> 
> I belive i must define a slot in the class Verarbeiter, but i have no
> idea how to do this.
> 
> The following example have i tried to translate from c++ to ruby
> 
http://velociraptor.mni.fh-giessen.de/Programmierung/progII-html-dir/node10.html#SECTION000103600000000000000
> 
> 
> Manfred