Assuming you already have a reference to the VConsoleProperties object:
String dialogType = (String)(properties.getProperty(VConsoleProperties.DIALOGTYPE)); if ((dialog.Type == VConsoleProperties.FRAME) { JFrame frame =(JFrame)(properties.getPropertyObject(VConsoleProperties.FRAME); ... } else if ((dialog.Type == VConsoleProperties.INTERNALFRAME) { JDesktopPane p = (JDesktopPane)(properties.getPropertyObject(VConsoleProperties.DESKTOPPANE)); ... }