Re: [gtkmm] Newbie in gtkmm and c++ under linux

["Eric Lussier" <ericlussier75 hotmail com>]

Daniel, you are right. I have replaced sig line with this one:

m_button.signal_clicked().connect(SigC::slot(*this, 
&HelloWorld::on_button_clicked));

and now it works fine.

Thank you very much.

Now, I was trying to upgrade to 2.4 but I have all sorts off problems.
I will post a new thread for this.

> From: Daniel Lynch <offmore sbcglobal net>
> To: Eric Lussier <ericlussier75 hotmail com>
> CC: gtkmm-list gnome org
> Subject: Re: [gtkmm] Newbie in gtkmm and c++ under linux
> Date: Fri, 30 Apr 2004 13:16:34 -0700
>
> You need to also compile helloworld.cc, IE:
>
> g++ main.cc helloworld.cc -o helloworld `pkgconfig gtkmm-2.0 --libs
> --clfags`
>
> Oh, and I had problems following the gtkmm-2.4 guide while using
> gtkmm-2.0.
>
> >From the tutorial on the web it says:
> m_button.signal_clicked().connect(sigc::mem_fun(*this,
> &HelloWorld::on_button_clicked));
>
> I got an error about an undeclared reference to 'sigc' when I tried
> compiling to that, if I remember correctly.
>
> But in the tutorial in /usr/share/docs/gtkmm-2.0/ the Hello World
> tutorial says to do:
>
> m_button.signal_clicked().connect(SigC::slot(*this,
> &HelloWorld::on_button_clicked));
>
> Which worked fine. I'm not sure why that is, maybe someone can explain
> it to me?
>
> On Fri, 2004-04-30 at 12:14, Eric Lussier wrote:
> > Hello every one, I am a programmer but a newbie in programming gtkmm and
> > also a newbie in programming C++ under linux.
> >
> > I am trying to compile the "Hello world" program of gtkmm documentation
> > from:
> > http://www.gtkmm.org/docs/gtkmm-2.4/docs/tutorial/html/ch03s06.html
> >
> > and I get this message on the shell:
> > [root myhost cpp]# make
> > g++ main.cc -o main `pkg-config gtkmm-2.0 --libs --cflags`
> > /tmp/ccE2Gp6W.o(.text+0x2f): In function `main':
> > : undefined reference to `HelloWorld::HelloWorld[in-charge]()'
> > /tmp/ccE2Gp6W.o(.text+0x4d): In function `main':
> > : undefined reference to `HelloWorld::~HelloWorld [in-charge]()'
> > /tmp/ccE2Gp6W.o(.text+0x73): In function `main':
> > : undefined reference to `HelloWorld::~HelloWorld [in-charge]()'
> > collect2: ld returned 1 exit status
> > make: *** [all] Error 1
> > [root myhost cpp]#
> >
> > I have checked the code about 10 times and it is exactly the same as on 
> the
> > example site's page.
> >
> > Does anyone have an idea of what i am doing wrong?
> >
> > Thanks.
> >
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