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List:       kde-multimedia
Subject:    Re: adding properties to a C++ class
From:       Guillaume Laurent <glaurent () telegraph-road ! org>
Date:       2001-12-18 9:34:49
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On Tuesday 18 December 2001 10:20, Scott Wheeler wrote:

> Then QListView sends a signal which passes a pointer to a QListViewItem,
> which I've implemented a slot for.  In the slot's implementation I do a
> static cast:
>
> myListItem *item=static_cast<myListItem*>(QLVitem);

It will work if QLVitem* is really a myListItem*, but you can't check that so 
it isn't really safe. Use dynamic_cast<> instead, which performs the check.

I suggest you get a copy of "C++ Primer", by Stanley Lippman, Addison Wesley 
Ed.

-- 
Guillaume
http://www.telegraph-road.org
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