-This class creates button layouts which conform to the standard button spacing and ordering defined by the platform or toolkit's user interface guidelines (if such things exist). By using this class, you can ensure that all your standard dialogs look correct on all major platforms. Currently it conforms to the Windows, GTK and Mac OS X human interface guidelines.
+This class creates button layouts which conform to the standard button spacing and ordering defined by the platform
+or toolkit's user interface guidelines (if such things exist). By using this class, you can ensure that all your
+standard dialogs look correct on all major platforms. Currently it conforms to the Windows, GTK+ and Mac OS X
+human interface guidelines.