Re: [gtkmm] TreeView Model, SEGV on append

[Fredrik Arnerup <e97_far e kth se>]

On 2003.11.11 18:53, "Ohrnberger, Erik" wrote:
> Are both of these means for constructing Gtk containing and Gtk
> subclassed object instances valid?

Yes.

> Can both of these methods be used at the same time?  What I mean to
> say is that a containing class may be dynamic, while some of it's 
> contained widgets may be either dynamic or automatic (second example).

Yes again. This is no different than ordinary memory management in C++. 
The only thing that is new is the manage() function, that makes the 
widget's container responsible for deleting it. If the tmpNotebook is a
member, you could just as well delete it in the destructor, or better 
yet, use auto_ptr.

> Is there any particular advantage in doing it one way over the other?
> If so, what would it be?  Is it just for the sake of consistency?

If you use dynamic memory you don't have to declare it as a member. 
This is useful for things such as labels. If you need to access the 
widget later, you have to declare it as a member. You could still 
declare it as a pointer though, in case you want to forward declare 
it's class, so you don't have to include an extra gtkmm header in your 
header file.

/Fredrik Arnerup