<ThreadSafetyStatement>Gtk# is thread aware, but not thread safe; See the <linklocation="node:gtk-sharp/programming/threads">Gtk# Thread Programming</link> for details.</ThreadSafetyStatement>
<summary>A delegate to be run over each character of a text buffer.</summary>
<remarks>Used by <seecref="Gtk.TextIter.ForwardFindChar"/> and <seecref="Gtk.TextIter.BackwardFindChar"/>. Generally, it's a search function of some sort.</remarks>