Add SCI_GETUNDOSEQUENCE to determine whether an undo sequence is active and its

nesting depth.

1 files changed, 4 insertions, 0 deletions

diff --git a/src/UndoHistory.cxx b/src/UndoHistory.cxx
index c4b241103..c0d7ba5f2 100644
--- a/src/UndoHistory.cxx
+++ b/src/UndoHistory.cxx
@@ -350,6 +350,10 @@ void UndoHistory::EndUndoAction() noexcept {
 	}
 }
 
+int UndoHistory::UndoSequenceDepth() const noexcept {
+	return undoSequenceDepth;
+}
+
 void UndoHistory::DropUndoSequence() noexcept {
 	undoSequenceDepth = 0;
 }