[GtkGLExt] [mmagallo debian org: Re: Using gtkglextmm widgets and libglademm]

[Mitchell Laks <mlaks post harvard edu>]

Hi,

Is anyone able to get this example application working?

I have trouble figuring out how to get it to compile. I am  not
too swift with C++ :).

There was an error message

make
gcc -g -Wall `pkg-config --cflags gtkmm-2.4 libglademm-2.4 gtkglextmm-1.2` -c simpleGLwithGlade.cpp
In file included from simpleGLwithGlade.cpp:11:
simpleGLscene.h:28: error: expected class-name before ‘{’ token
make: *** [simpleGLwithGlade.o] Error 1

So I edited the file and changed

the lines in the simpleGLscene.h file:

class SimpleGLScene : public Gtk::DrawingArea,
                      public Gtk::GL::Widget

to 

class SimpleGLScene : public Gtk::DrawingArea,
                      public Gtk::GL::Widget<SimpleGLScene>

now I get the following errors

make
/bin/rm -f .depend
gcc -MM -g -Wall `pkg-config --cflags gtkmm-2.4 libglademm-2.4 gtkglextmm-1.2` simpleGLwithGlade.cpp simpleGLscene.cpp glConfigUtil.cpp > .depend
gcc -g -Wall `pkg-config --cflags gtkmm-2.4 libglademm-2.4 gtkglextmm-1.2` -c simpleGLwithGlade.cpp
gcc -g -Wall `pkg-config --cflags gtkmm-2.4 libglademm-2.4 gtkglextmm-1.2` -c simpleGLscene.cpp
simpleGLscene.cpp: In constructor ‘SimpleGLScene::SimpleGLScene(GtkDrawingArea*, const Glib::RefPtr<Gnome::Glade::Xml>&)’:
simpleGLscene.cpp:18: error: expected class-name before ‘(’ token
simpleGLscene.cpp:31: error: ‘class Glib::RefPtr<Gdk::GL::Config>’ has no member named ‘is_null’
simpleGLscene.cpp:39: error: ‘class Glib::RefPtr<Gdk::GL::Config>’ has no member named ‘is_null’
make: *** [simpleGLscene.o] Error 1

any idea what we need to do next?

Thank you,

Mitchell



************************
From: "Marcelo E. Magallon" <mmagallo debian org>
User-Agent: Mutt/1.5.6+20040907i
Date: Sat, 29 Jan 2005 08:15:39 -0600
To: gtkglext-list gnome org
Subject: Re: [GtkGLExt] Using gtkglextmm widgets and libglademm

On Sat, Jan 22, 2005 at 09:51:07PM +0100, Miguel Angel Polo wrote:

 > I want to know the correct way to load a widget (derived from
 > Gtk::GL::DrawingArea) from my .glade file

 I'm attaching something a former colleague of mine sent me a few days
 ago.  I'll check it in in the next few days once I've gone thru it.
 It's unreviewed at the moment.

 Marcelo



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