Re: get datas from entries...

[sefo <sefo tlse wanadoo fr>]

TORRI Vincent wrote:
>   just one thing : the prototype of a callback of an entry, associated to 
> the "activate" signal, is
>
>   void CallBack(GtkEntry *entry, gpointer data)
>
>   then you could try this connection :
>
>   gtk_signal_connect(GTK_OBJECT(entry), "activate", 
> GTK_SIGNAL_FUNC(entry_callback), &MainText);
>
>   and the callback :
>
> void entry_callback(GtlWidget *Entry, GtkWidget **widget) {
>   GtkWidget *Text;
>
>   Text = widget[0];
>   char *str=gtk_entry_get_text(GTK_ENTRY(Entry));
>   gtk_insert_text(GTK_TEXT(Text), str);       
>   g_print("%s\n", str);
> }

Well, thanks for your help, but it seems this callbacks doesn't compile, here's the function:
void entry_callback(GtlWidget *entry, GtkWidget **widget) { /*line 8*/
  GtkWidget *MainText;
  MainText = widget[0];
  char *str=gtk_entry_get_text(GTK_ENTRY(entry));
  gtk_insert_text(GTK_TEXT(MainText), str);     
  g_print("%s\n", str);
}

here's the error:
bash-2.05$ gcc -Wall -o prog prog.c `gtk-config --cflags --libs`
4.c:8: parse error before `*'
4.c: In function `entry_callback':
4.c:10: `widget' undeclared (first use in this function)
4.c:10: (Each undeclared identifier is reported only once
4.c:10: for each function it appears in.)
4.c:11: parse error before `char'
4.c:12: warning: implicit declaration of function `gtk_insert_text'
4.c:12: `str' undeclared (first use in this function)
bash-2.05$

> Perhaps it is not the simpliest way to do that, but it should work

2/

And the second function you gave me works great! :)
But one question though:
i got
gchar *text1, *text2, *text3, *text4; /*for the 4 entries*/
text1=gtk_entry_get_text(GTK_ENTRY(Entries[0]));
text2=gtk_entry_get_text(GTK_ENTRY(Entries[1]));
...

but if i want to add text1 to text2 and put the result into an int, how could i do?
gint *text1...etc ?
maybe atoi(text1) ?

>  In the function where yours entries and your button are defined : 
>
>   GtkWidget **Entries; /* In fact, the replacement of your 4 entries */
>   GtkWidget *Button;
>
>   Entries = g_malloc(4*sizeof(GtkWidget *));
>   /*
>   ... You set your entries with Entries[0] = etc..
>                                 Entries[1] = ...
>                                 Entries[2] = ...
>                                 Entries[3] = ...
>   and Button = ... 
>   */
>
>   /* And you connect the following signal to your button */
>   gtk_signal_connect(GTK_OBJECT(Button), "clicked", 
> (GtkSignalFunc)calculate), Entries);
>   ...
>
> The callback should be :
>   void calculate(GtkWidget *w, GtkWidget **Entries)
>     {
>       gchar *text;
>    
>       /* to get the text of the first entry : */
>       text = gtk_entry_get_text(GTK_ENTRY(Entries[0]));
>       /* and so on ... */
>     }
>   
> Hope this will help 
>
> Vincent TORRI
>
> > thx
> > _______________________________________________
> > gtk-app-devel-list mailing list
> > gtk-app-devel-list gnome org
> > http://mail.gnome.org/mailman/listinfo/gtk-app-devel-list
>
> -- 
> TORRI Vincent
> Mathematiques Appliquees Bordeaux                                                
> Institut de Mathematiques                                                       
> Universite Bordeaux 1                                                           
> 351 cours de la liberation                                                      
> 33 405 Talence cedex - France                                                   
>                                                                                 
> Tel : 33 (0)5 57 96 21 42                                                       
> Fax : 33 (0)5 56 84 26 26                                                       
> --