wxCommandEvent event( wxEVT_COMMAND_TEXT_UPDATED, combo->GetId() );
     event.SetString( combo->GetValue() );
     event.SetEventObject( combo );
-    combo->GetEventHandler()->ProcessEvent( event );
+    combo->HandleWindowEvent( event );
 }
 }
 
         event.SetInt( curSelection );
         event.SetString( combo->GetStringSelection() );
         event.SetEventObject( combo );
-        combo->GetEventHandler()->ProcessEvent( event );
+        combo->HandleWindowEvent( event );
 
         // for consistency with the other ports, send TEXT event
         wxCommandEvent event2( wxEVT_COMMAND_TEXT_UPDATED, combo->GetId() );
         event2.SetString( combo->GetStringSelection() );
         event2.SetEventObject( combo );
-        combo->GetEventHandler()->ProcessEvent( event2 );
+        combo->HandleWindowEvent( event2 );
     }
 }
 }
         event.SetInt( curSelection );
         event.SetString( combo->GetStringSelection() );
         event.SetEventObject( combo );
-        combo->GetEventHandler()->ProcessEvent( event );
+        combo->HandleWindowEvent( event );
 
         // for consistency with the other ports, don't generate text update
         // events while the user is browsing the combobox neither
         wxCommandEvent event2( wxEVT_COMMAND_TEXT_UPDATED, combo->GetId() );
         event2.SetString( combo->GetValue() );
         event2.SetEventObject( combo );
-        combo->GetEventHandler()->ProcessEvent( event2 );
+        combo->HandleWindowEvent( event2 );
     }
 }
 }
 // wxComboBox
 //-----------------------------------------------------------------------------
 
-IMPLEMENT_DYNAMIC_CLASS(wxComboBox,wxControl)
-
 BEGIN_EVENT_TABLE(wxComboBox, wxControl)
     EVT_SIZE(wxComboBox::OnSize)
     EVT_CHAR(wxComboBox::OnChar)
     {
         GtkWidget *list_item = gtk_list_item_new_with_label( wxGTK_CONV( choices[i] ) );
 
-        m_clientDataList.Append( (wxObject*)NULL );
-        m_clientObjectList.Append( (wxObject*)NULL );
+        m_clientDataList.Append( NULL );
+        m_clientObjectList.Append( NULL );
 
         gtk_container_add( GTK_CONTAINER(list), list_item );
 
         gtk_widget_show( list_item );
 
         if ( m_clientDataList.GetCount() < GetCount() )
-            m_clientDataList.Insert( pos, (wxObject*) NULL );
+            m_clientDataList.Insert( pos, NULL );
         if ( m_clientObjectList.GetCount() < GetCount() )
-            m_clientObjectList.Insert( pos, (wxObject*) NULL );
+            m_clientObjectList.Insert( pos, NULL );
 
         AssignNewItemClientData(pos, clientData, i, type);
     }
 
     DisableEvents();
 
-    GList *list = g_list_append( (GList*) NULL, child->data );
+    GList *list = g_list_append( NULL, child->data );
     gtk_list_remove_items( listbox, list );
     g_list_free( list );
 
     EnableEvents();
 }
 
-wxString wxComboBox::GetValue() const
+wxString wxComboBox::DoGetValue() const
 {
     GtkEntry *entry = GTK_ENTRY( GTK_COMBO(m_widget)->entry );
     wxString tmp( wxGTK_CONV_BACK( gtk_entry_get_text( entry ) ) );
     wxCHECK_RET( m_widget != NULL, wxT("invalid combobox") );
 
     GtkWidget *entry = GTK_COMBO(m_widget)->entry;
-    wxString tmp;
-    if (!value.IsNull()) tmp = value;
-    gtk_entry_set_text( GTK_ENTRY(entry), wxGTK_CONV( tmp ) );
+    gtk_entry_set_text( GTK_ENTRY(entry), wxGTK_CONV( value ) );
 
     InvalidateBestSize();
 }
 
+void wxComboBox::WriteText(const wxString& value)
+{
+    wxCHECK_RET( m_widget != NULL, wxT("invalid combobox") );
+
+    GtkWidget *entry = GTK_COMBO(m_widget)->entry;
+    GtkEditable * const edit = GTK_EDITABLE(entry);
+
+    gtk_editable_delete_selection(edit);
+    gint len = gtk_editable_get_position(edit);
+    gtk_editable_insert_text(edit, wxGTK_CONV(value), -1, &len);
+    gtk_editable_set_position(edit, len);
+}
+
 void wxComboBox::Copy()
 {
     wxCHECK_RET( m_widget != NULL, wxT("invalid combobox") );
 
     GtkWidget *entry = GTK_COMBO(m_widget)->entry;
     gtk_editable_delete_text( GTK_EDITABLE(entry), (gint)from, (gint)to );
-    if (value.IsNull()) return;
+    if ( value.empty() ) return;
     gint pos = (gint)to;
 
 #if wxUSE_UNICODE
         eventEnter.SetInt( GetSelection() );
         eventEnter.SetEventObject( this );
 
-        if (!GetEventHandler()->ProcessEvent( eventEnter ))
+        if (!HandleWindowEvent( eventEnter ))
         {
             // This will invoke the dialog default action, such
             // as the clicking the default button.