This is a helper to handle the simplest case of associating one named popup to one given widget. - You can pass a NULL str_id to use the identifier of the last item. - You may want to handle this on user side if you have specific needs (e.g. tweaking IsItemHovered() parameters). - This is essentially the same as calling OpenPopupOnItemClick() + BeginPopup() but written to avoid computing the ID tw
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