Ticket #41 (closed enhancement: fixed)

Opened 7 years ago

Last modified 4 years ago

Add predicates for types of widgets.

Reported by: A.Simon@… Owned by: somebody
Priority: normal Milestone:
Component: general (Gtk+, Glib) Version:
Keywords: Cc:

Description

It would be useful to have predicates for each widget type that can test an object if it is of that type. At the moment we need to use the castTo* functions and catch the error message that is returned if the cast failed.

Change History

Changed 5 years ago by hamish@…

  • version 0.9.11 deleted

I have sent a patch to the devel list that does this by way of an isA function and gType* functions. You can use it like so... 

when (obj `isA` gTypeWidget) $ doSomething $ castToWidget obj

Changed 5 years ago by axel

  • status changed from new to closed
  • resolution set to fixed

Since this is now available as typeInstanceIsA in module System.Glib.GType I close this request.

Changed 4 years ago by Alvaro

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Changed 4 years ago by Alvaro

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