Re: cannot overload addChild

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Dave Pape (pape++at++evl.uic.edu)
Tue, 17 Feb 1998 15:15:04 -0600 (CST)

  Is this really acceptable (ie officially supported)? The Programmer's
Guide (chapter 20) specifically says that these hidden nb_ functions
are internal, and should not be overridden by application subclasses.
I've had to work around similar problems in the past, when subclassing
pfDCS, and would be interested if there actually is a correct way to
override Performer class functions.

 -Dave

On Thu, 12 Feb 1998, Brian Furtaw wrote:

> It looks like you have to subclass pfGroup and override...
>
> virtual int nb_addChild(pfNode *child);
>
>
> ...not...
>
> int addChild(pfNode *child) {
> return PFGROUP->nb_addChild(child);
> }
>
> ...which is not virtual.
>
> Brian

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Dave Pape Electronic Visualization Laboratory, UIC
pape++at++evl.uic.edu http://www.evl.uic.edu/pape/

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