Gtk_entry_set_text

[Sébastien NoName <crazyseb gmail com>]

I have got a problem whit gtk_entry_set_text

Here is a part of my code

void OnBackPath(GtkWidget *elemt, gpointer data)
{
  t_globales* temp = (t_globales*)data;
  
    const gchar *pCharTempSrc;
    const gchar *pCharTempDst; 
    
   // Récupération. Fonctionne bien
   // gtk_window_set_title (GTK_WINDOW(temp->pGtk.pMainPanel), pCharTempDst);
   // Indique bien le bon texte
   pCharTempSrc = 
gtk_entry_get_text(GTK_ENTRY(temp->pGtk.pEntryStationSource));
   pCharTempDst = 
gtk_entry_get_text(GTK_ENTRY(temp->pGtk.pEntryStationDestination));
  

   // Le deuxieme set_text ne fonctionne pas!
   gtk_entry_set_text(GTK_ENTRY(temp->pGtk.pEntryStationDestination),
pCharTempSrc);
   gtk_entry_set_text(GTK_ENTRY(temp->pGtk.pEntryStationSource), 
pCharTempDst );
}

The problem is located here :
gtk_entry_set_text(GTK_ENTRY(temp->pGtk.pEntryStationDestination),
pCharTempSrc);
gtk_entry_set_text(GTK_ENTRY(temp->pGtk.pEntryStationSource),  pCharTempDst);

The first gtk_entry_set_text is working but not the second one!

Stranger. When I put an g_locale_to_utf8, both of the
gtk_entry_set_text work but i have got a problem with special char!

Do you know why? Could you help me!
thx