[Qt-interest] Antwort: Re: How to change the language at run time in the Application

[Markus Franke]

After installing a new translator via qApp->installTranslator() you need 
to emit some kind of a languageChanged signal. Then you connect this 
signal to all your GUI elements which need to be changed during runtime 
and in their respective slots you do an update.

Hope this helps,

Mit freundlichen Grüßen / Best regards

Markus Franke
Entwicklung/ Development

SebaKMT
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qt-interest-bounces at trolltech.com schrieb am 19.05.2009 15:56:04:

> Hi Thomas,
> 
> Thanks for the information. I have gone through it, but I am having a 
> doubt that how
> we will change a particular string in to a different language at run 
time.
> 
> Following is the example I am trying for. qMainwindow has some action 
> "Language 1"
> When the user clicks it in the run time, I want to change Qpushbutton 
> text to the "Language 1" equivalent.
> 
> #My project file::
> SOURCES = main.cpp
> 
> TRANSLATIONS = hellotr_lan1.ts 
> 
> 
> MainWindow :: MainWindow ()
> {
>     QMenuBar* b = menuBar ();
>     QMenu* m = b->addMenu ("Languages");
> 
>     myLan1 = new QAction(QAction::tr("Language 1", m));
>     connect(myLan1, SIGNAL(triggered () ), this, SLOT (Lang1() ));
>     m->addAction (myLan1);
> 
>     // button
>     QPushButton* hello = new QPushButton(QPushButton::tr("Hello 
world!"));
> 
>     setCentralWidget (hello);
> }
> 
> void
> MainWindow::Lang1 ()
> {
>     QTranslator t;
>     t.load("hellotr_lan1");
>     qApp->installTranslator(&t);
> }
> 
> 
> Please help in this regard
> 
> Santhosh.
> 
> Thomas Dähling wrote:
> > You'll have to re-implement the changeEvent() function.
> >
> > See also:
> >
> > 
http://wiki.qtcentre.org/index.php?title=Dynamic_translation_in_Qt4_applications
> >
> > /Thomas
> >
> > Am Dienstag, den 19.05.2009, 18:11 +0530 schrieb Santhosh Y:
> > 
> >> Hi,
> >>
> >> How to change dynamically laguage of QAction/QPushButton  items
> >>
> >> I have gone through the example linguist/hellotr/main.cpp present in 
> >> Assistant.
> >> I am able to understand the same and I able to run the example given 
here.
> >>
> >> My requirement is that, I should be able to change the language at 
run 
> >> time in a application.
> >>
> >> 
> >
> > 
> 
> 
> -- 
> ----------------------------------------------------
> Y Santhosh Kumar
> Senior Software Engineer
> SoftJin Technologies Private Limited
> Unit No. 102, Mobius Tower,
> I Floor, SJR I - Park,
> EPIP, White Field,
> Bangalore - 560066, India
> U : www.softjin.com
> E : santhosh at softjin.com
> T : +91-80-41779999
> M : +91-9740535265
> ----------------------------------------------------
> 
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