}
     }
 
-    wxCommandEvent event(wxEVT_COMMAND_CHECKBOX_CLICKED, cb->GetId());
+    wxCommandEvent event(wxEVT_CHECKBOX, cb->GetId());
     event.SetInt(cb->Get3StateValue());
     event.SetEventObject(cb);
     cb->HandleWindowEvent(event);
 
 wxCheckBox::wxCheckBox()
 {
+    m_widgetCheckbox = NULL;
+}
+
+wxCheckBox::~wxCheckBox()
+{
+    if (m_widgetCheckbox && m_widgetCheckbox != m_widget)
+        GTKDisconnect(m_widgetCheckbox);
 }
 
 bool wxCheckBox::Create(wxWindow *parent,