The ::insert-child-anchor signal is emitted to insert a
#GtkTextChildAnchor in a #GtkTextBuffer.
Insertion actually occurs in the default handler.
Note that if your handler runs before the default handler it must
not invalidate the @location iter (or has to revalidate it).
The default signal handler revalidates it to be placed after the
inserted @anchor.
The ::insert-child-anchor signal is emitted to insert a #GtkTextChildAnchor in a #GtkTextBuffer. Insertion actually occurs in the default handler.
Note that if your handler runs before the default handler it must not invalidate the @location iter (or has to revalidate it). The default signal handler revalidates it to be placed after the inserted @anchor.
See also: gtk_text_buffer_insert_child_anchor().