TreeItem and right mouse button

["Vianney Lecroart" <lecroart nevrax com>]

Hello,

One short question. I've a GtkTreeItem with an attached GtkSubtree and a
connect signal handler for the right mouse button. The goal is to
display only a popup window and not to collapse the subtree attached to
the specific GtkTreeItem. How could I suppress this default behavior?

vianney.