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-rw-r--r--demos/spectrum/app/waveform.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/demos/spectrum/app/waveform.h b/demos/spectrum/app/waveform.h
index 4de527f..909e5ee 100644
--- a/demos/spectrum/app/waveform.h
+++ b/demos/spectrum/app/waveform.h
@@ -43,7 +43,9 @@
#include <QPixmap>
#include <QScopedPointer>
+QT_BEGIN_NAMESPACE
class QByteArray;
+QT_END_NAMESPACE
/**
* Widget which displays a section of the audio waveform.