dfui_property_find
struct dfui_property *dfui_property_find(struct dfui_property *, const char *);
if ((p = dfui_property_find(head, name)) != NULL)
if ((p = dfui_property_find(*head, name)) != NULL) {
if ((h = dfui_property_find(fi->property_head, name)) == NULL)
if ((h = dfui_property_find(a->property_head, name)) == NULL)
if ((h = dfui_property_find(f->property_head, name)) == NULL)