From: lolveley <lolveley@...>
Date: 2009-05-21T07:37:30+09:00
Subject: Re: Qt4 not supported?

Stefano Crocco a �crit :
> On Wednesday 20 May 2009, lolveley wrote:
>   
>> |hello,
>> |
>> |thank you for your answer, ken.
>> |I still have an error : here is my program :
>> |
>> |    require ('Qt')
>> |
>> |    class Fen_princ < Qt::MainWindow
>> |
>> |        def initialize
>> |            zone_centrale=Qt::Widget.new
>> |            nom=Qt::LineEdit.new
>> |            layout=Qt::FormLayout.new
>> |            layout.addRow("Votre nom :",nom)
>> |            zone_centrale.setLayout(layout)
>> |            setCentralWidget(zone_centrale)
>> |    <---- line 11
>> |
>> |        end
>> |
>> |    end
>> |
>> |
>> |
>> |    app=Qt::Application.new(ARGV)
>> |    fenetre=Fen_princ.new()                                       <-----
>> |    line 19
>> |    fenetre.show
>> |    app.exec
>> |
>> |
>> |and here is the error :
>> |
>> |    C:/Users/lolveley/Documents/Visual Studio
>> |   
>> | 2008/Projects/test_qt_central_widget/test_qt_central_widget/rubyfile.rb:1
>> |1:in `method_missing': Instance is not initialized, cannot call
>>     
>
> You forgot to call the superclass's initialize method. Usually, when 
> subclassing Qt::Object or Qt::Widget, it's better to put a call to super as 
> first line of the initialize method (it's not required, as long as you don't 
> call any method of the base class before doing so, but it helps avoiding to 
> forget it).
>
> I hope this helps
>
> Stefano
>
>
>   
thank you stefano, it is ok now.

olivier.

	

	
		
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