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-rw-r--r--doc/event.n4
1 files changed, 4 insertions, 0 deletions
diff --git a/doc/event.n b/doc/event.n
index 045339e..54ad42e 100644
--- a/doc/event.n
+++ b/doc/event.n
@@ -352,6 +352,10 @@ user-driven
.QW "tab to widget"
action.
.TP
+\fB<<UndoStack>>\fR
+This is sent to a text widget when its undo stack or redo stack becomes
+empty or unempty.
+.TP
\fB<<WidgetViewSync>>\fR
This is sent to a text widget when its internal data become obsolete,
and again when these internal data are back in sync with the widget