Connect(btnEraseLastPoint->GetId() , wxEVT_COMMAND_BUTTON_CLICKED , (wxObjectEventFunction) &WidgetShowNPoints::OnEraseLastPoint);
Connect(btnErasePoint->GetId() , wxEVT_COMMAND_BUTTON_CLICKED , (wxObjectEventFunction) &WidgetShowNPoints::OnErasePoint);
Connect(btnDeleteAllPoints->GetId() , wxEVT_COMMAND_BUTTON_CLICKED , (wxObjectEventFunction) &WidgetShowNPoints::OnDeleteAllPoints);
Connect(btnEraseLastPoint->GetId() , wxEVT_COMMAND_BUTTON_CLICKED , (wxObjectEventFunction) &WidgetShowNPoints::OnEraseLastPoint);
Connect(btnErasePoint->GetId() , wxEVT_COMMAND_BUTTON_CLICKED , (wxObjectEventFunction) &WidgetShowNPoints::OnErasePoint);
Connect(btnDeleteAllPoints->GetId() , wxEVT_COMMAND_BUTTON_CLICKED , (wxObjectEventFunction) &WidgetShowNPoints::OnDeleteAllPoints);