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-rw-r--r--demos/spectrum/app/tonegenerator.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/demos/spectrum/app/tonegenerator.h b/demos/spectrum/app/tonegenerator.h
index 419f7e4..d387768 100644
--- a/demos/spectrum/app/tonegenerator.h
+++ b/demos/spectrum/app/tonegenerator.h
@@ -41,8 +41,10 @@
#include <QtCore/qglobal.h>
#include "spectrum.h"
+QT_BEGIN_NAMESPACE
class QAudioFormat;
class QByteArray;
+QT_END_NAMESPACE
/**
* Generate a sine wave