2008/4/8 Andrea Bolognani <[EMAIL PROTECTED]>: > Hi everybody, > > I recently started playing with Vala, and as an exercise I started porting > a simple GTK+ application to this language. > > I noticed the vbox property of Gtk.Dialog is declared of type Gtk.Widget, > so > if I want to add a widget to the dialog I have to explicitly cast it to > a Gtk.Container as in the code below > > ((Gtk.Container) dialog.vbox).add (label); > > Is this the intended behaviour, or rather a bug in the GTK+ binding? > > -- > KiyuKo <eof AT kiyuko DOT org> > Resistance is futile, you will be garbage collected. > > >From what I know, this is the Gtk API.
Since about every 'struct' in GObject needs to be converted before you get access to the extended/base class features, this looks like little overhead when using GtkDialog->vbox in C. However, this interface seems strange from a language with built-in oop such as Vala. Mind you, it doesn't impose no overhead at runtime. Vlad
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