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-rw-r--r--libs/ardour/ardour/slavable.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/libs/ardour/ardour/slavable.h b/libs/ardour/ardour/slavable.h
index 83675f0e22..5af954d51c 100644
--- a/libs/ardour/ardour/slavable.h
+++ b/libs/ardour/ardour/slavable.h
@@ -52,6 +52,8 @@ class LIBARDOUR_API Slavable
void assign (boost::shared_ptr<VCA>);
void unassign (boost::shared_ptr<VCA>);
+ PBD::Signal2<void,boost::shared_ptr<VCA>,bool> AssignmentChange;
+
virtual boost::shared_ptr<AutomationControl> automation_control (const Evoral::Parameter& id) = 0;
static std::string xml_node_name;