ToolItem.setProxyMenuItem

void setProxyMenuItem(string menuItemId, gtk.widget.Widget menuItem = null)

Sets the #GtkMenuItem used in the toolbar overflow menu. The menu_item_id is used to identify the caller of this function and should also be used with [gtk.tool_item.ToolItem.getProxyMenuItem].

See also #GtkToolItem::create-menu-proxy.

Parameters

`menuItemId`	a string used to identify menu_item
`menuItem`	a #GtkMenuItem to use in the overflow menu, or null