Thanks, Charles.

What if the Vanilla external has CLASS_DEFAULT widgetbehavior? Then Pd assigns c->c_wb to text_widgetbehavior.

Since text_widgetbehavior is a hard-coded widgetbehavior it is guaranteed to have the number of members expected by

the code in g_editor.c.

Is this right?

-Jonathan

On Monday, July 27, 2015 1:28 PM, Charles Z Henry <czhenry@gmail.com> wrote:

On Mon, Jul 27, 2015 at 12:08 PM, Jonathan Wilkes via Pd-list

<pd-list@lists.iem.at> wrote:

> Background info: Pd-l2ork has an extra member at the _end_ of the
> t_widgetbehavior struct. This member is used to do accelerated displacing
> of a selection of objects in Pd.

This type of modification isn't meant to be binary compatible in both
directions. Your Pd-Vanilla externals with the Vanilla
t_widgetbehavior struct will not work in Pd-l2ork, because the struct
is smaller.

When Pd-l2ork tries to access those elements off the end of the
t_widgetbehavior struct, it should seg fault.