1diff --git a/backend_qt/qzint.h b/backend_qt/qzint.h 2index d57ab6a..62fb0a4 100644 3--- a/backend_qt/qzint.h 4+++ b/backend_qt/qzint.h 5@@ -19,6 +19,7 @@ 6 #ifndef QZINT_H 7 #define QZINT_H 8 9+#include <QObject> 10 #include <QColor> 11 #include <QPainter> 12 #include "zint.h"
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