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documentation/trunk/solutions/gui-building/eiffelvision-2/Vison2_howto/converting-eiffelvision-2-systems-void-safety.wiki
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[[Property:modification_date|Thu, 27 Jun 2024 10:51:45 GMT]]
[[Property:publication_date|Thu, 27 Jun 2024 10:51:45 GMT]]
[[Property:title|Converting EiffelVision 2 Systems to Void-Safety]]
[[Property:weight|1]]
[[Property:uuid|96e01318-700b-da6e-42d1-14fee219daf5]]
==Introduction==
In order to convert systems that employ EiffelVision 2 (Vision2) to [[Void-safe Programming in Eiffel|void-safety]], some adjustments may be needed depending on its usage. This page describes the various usage scenarios of Vision2 that will need to be converted in order to adhere to void-safety.
In order to convert systems that employ EiffelVision 2 (Vision2) to [[Void-safe programming in Eiffel|void-safety]], some adjustments may be needed depending on its usage. This page describes the various usage scenarios of Vision2 that will need to be converted in order to adhere to void-safety.
<!--break-->
==Inheritance Purely from an Interface Class==
@@ -82,5 +84,5 @@ The following steps are needed during the conversion:
* Remove <eiffel>`make'</eiffel>, rename <eiffel>`initialize'</eiffel> to <eiffel>`make'</eiffel>, and make sure that any calls to Precursor do not override any settings set in <eiffel>`initialize'</eiffel>. The ordering may need to be changed in order to make the code void-safe. See <eiffel>EV_POPUP_WINDOW_IMP.make</eiffel> (Windows implementation) where the setting of <eiffel>`user_can_resize'</eiffel> is performed after the Precursor call so that is doesn't get overriden.
{{SeeAlso|[[Void-Safe Programming in Eiffel]]}}
{{SeeAlso|[[Void-safe programming in Eiffel]]}}