feat: Add a virtual function for extra output

1 files changed, 2 insertions, 1 deletions

diff --git a/src/LEDVideoWall.h b/src/LEDVideoWall.h
index fe8b9ea..1007249 100644
--- a/src/LEDVideoWall.h
+++ b/src/LEDVideoWall.h
@@ -14,8 +14,9 @@ public:
 
 	static LEDVideoWall* fromCommandLine();
 
-private:
+protected:
 	LEDVideoWall(mm width, mm height);
+	virtual std::string extraOutput() const;
 };
 
 #endif /* SG_LEDVIDEOWALL */