[Gambas-user] newbie question virtual classes

[johnf]

On Tuesday 31 January 2006 10:23, Laurent Carlier wrote:
> Le Mardi 31 Janvier 2006 19:06, johnf a écrit :
> > Hi,
> > could someone point me to a website or something I can read.  I don't
> > understand the ".treeview" is a virtual class documentation.  I don't
> > understand Doc's when is states
> >
> > ListView.Item property is .ListViewItem.  Where .ListViewItem is a
> > virtual class.
> >
> > Thanks
>
> Virtual class is a way to have access to sub object of a class (ie internal
> object not instanciable) like you can have in treeview (or listview)
>
> ------------
> DIM hTreeView AS TreeView
> ' DIM hTreeViewItem AS .TreeViewItem
>
> hTreeView = NEW TreeView (ME)
> ....
> ' want to access an item of the treeview
> theKey = hTreeView.Item.Key
> ' is the same (but not allowed)
> ' hTreeViewItem = hTreeView.Item
> ' theKey = hTreeViewItem.Key
> ------------
>
> In fact, virtual class is only for internal use and can be use for other
> purpose :-) it's only useful for making component in C/C++ (actually).
>
> Regards,

So if I understand you correctly I can NOT use ".TreeViewItem" ?

John