Re: Signals & Callbacks - Help!! Part 2

["Padraig O'Briain" <Padraig Obriain Sun COM>]

jalkadir gosonic ca wrote:

> I am not an expert in GLIB, but, following your suggestion, I have added
> the following variables. Notice that it is similar to the one in your
> example.
> --------
> gchar strMsg;
>  

Should be gchar *strMsg;

> strMsg = g_strdup("Under Comstruction ... ");
>
> --------
> However, this statement gives me an error that reads:
>
> main.cpp: In function `int main(int, char**)':
>
> main.cpp:25: error: invalid conversion from `gchar*' to `gchar'
> main.cpp:83: error: invalid conversion from `gchar' to `void*'
> main.cpp:83: error:   initializing argument 1 of `void g_free(void*)'
>
> make.exe: *** [main.o] Error 1
>
> Execution terminated
> -------------
>
>
> What am I doing wrong?
>
> TIA
>  
>
> > jalkadir gosonic ca ha scritto lo scorso 09/07/2005 02:28:
> >    
> >
> > > Thank Yeti for your help, I really appreciate your input. However, due
> > > to
> > > my lack of experience on GTK+ I am afraid I would need something a bit
> > > more tangible. Could you please provide me with a example or point me to
> > > to a place where I could find examples of GTK+ software?
> > >
> > > Thanks in advance.
> > >      
> > Maybe this can help you.
> > Cheers,
> > Carlo
> >
> > #include <gtk/gtk.h>
> >
> > void on_btn_clicked (GtkButton *, gpointer);
> >
> > int main (int argc, char *argv[])
> > {
> >   GtkWidget *mainw;
> >   GtkWidget *vbox;
> >   GtkWidget *btn;
> >   gchar     *text;
> >
> >   gtk_set_locale ();
> >   gtk_init (&argc, &argv);
> >
> >   /* a very simple window with a button
> >    */
> >   mainw = gtk_window_new (GTK_WINDOW_TOPLEVEL);
> >   gtk_widget_set_size_request (mainw, 400, -1);
> >   gtk_window_set_title (GTK_WINDOW (mainw), "main");
> >   gtk_window_set_position (GTK_WINDOW (mainw), GTK_WIN_POS_CENTER);
> >
> >   vbox = gtk_vbox_new (FALSE, 0);
> >   gtk_widget_show (vbox);
> >   gtk_container_add (GTK_CONTAINER (mainw), vbox);
> >
> >   btn = gtk_button_new_with_mnemonic ("Click me");
> >   gtk_widget_show (btn);
> >   gtk_box_pack_start (GTK_BOX (vbox), btn, FALSE, FALSE, 0);
> >
> >   g_signal_connect ((gpointer) mainw, "destroy",
> >                     G_CALLBACK (gtk_main_quit),
> >                     NULL);
> >   /* here is your text
> >    */
> >   text = g_strdup ("your text");
> >   g_signal_connect ((gpointer) btn, "clicked",
> >                     G_CALLBACK (on_btn_clicked),
> >                     (gpointer)text);
> >
> >   gtk_widget_show (mainw);
> >
> >   gtk_main ();
> >
> >   /* not really needed, because we are quitting here
> >    */
> >   g_free (text);
> >
> >   return 0;
> > }
> >
> > void on_btn_clicked (GtkButton *btn, gpointer your_data)
> > {
> >   g_print ("%s\n", (gchar *)your_data);
> > }
> > _______________________________________________
> > gtk-list mailing list
> > gtk-list gnome org
> > http://mail.gnome.org/mailman/listinfo/gtk-list
> >
> >    
>
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