you have to do a
GtkTreeView *treeview1 = GTK_TREE_VIEW(lookup_widget("treeview1",
GTK_WIDGET(menuitem)));
before you can use the treeview. as far as i know (i might be wrong) in the
newer glade versions one cannot use the 'user_data' stuff in the callback
functions.
the widgets aren't declared in the callback file, you have to look them up
using a widget from the same window and 'lookup_widget' before you can use
them.
gyözö
> Hi,
>
> I have a file interface.c where glade set up a gtk treeview named
> treeview1. When in callbacks.c I try to use treeview1 I got this error:
>
> callbacks.c: In function `on_new1_activate':
> callbacks.c:56: warning: dereferencing `void *' pointer
> callbacks.c:56: error: request for member `treeview1' in something not a
> structure or union
>
> This is the code:
> void on_new1_activate (GtkMenuItem *menuitem, gpointer user_data)
> {
> //qui devo creare un nuovo archivio.
> gchar *path = Show_File_Dialog ( FALSE );
> if (path == NULL) return;
> g_print ("Hai scelto: %s\n",path);
> switch (ChoosenArchiveType)
> {
> case 0:
> g_print ("Hai scelto: bzip2\n");
> break;
> case 1:
> g_print ("Hai scelto: rar\n");
> break;
> case 2:
> g_print ("Hai scelto: tar\n");
> break;
> case 3:
> g_print ("Hai scelto: zip\n");
> break;
> default:
> break;
> }
> g_free (path);
> 56: user_data->treeview1 = NULL; <----- here I got the error
> }
>
> Thanks for the attention,
--
Ginsberg's Theorem:
(1) You can't win.
(2) You can't break even.
(3) You can't even quit the game.
Freeman's Commentary on Ginsberg's theorem:
Every major philosophy that attempts to make life seem
meaningful is based on the negation of one part of Ginsberg's
Theorem. To wit:
(1) Capitalism is based on the assumption that you can win.
(2) Socialism is based on the assumption that you can break
even.
(3) Mysticism is based on the assumption that you can quit the
game.
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