Q_DECLARE_METATYPE(WindowFunction) in spectrum example

Pick-to: 6.2
Fixes: QTBUG-96955
Change-Id: I4c9d2da8d8f0dd3af9ce7482deaab3dedafa7755
Reviewed-by: Samuel Mira <samuel.mira@qt.io>
Reviewed-by: Lars Knoll <lars.knoll@qt.io>

1 files changed, 1 insertions, 0 deletions

diff --git a/examples/multimedia/spectrum/spectrum.h b/examples/multimedia/spectrum/spectrum.h
index aea9ce7c5..687ae1e33 100644
--- a/examples/multimedia/spectrum/spectrum.h
+++ b/examples/multimedia/spectrum/spectrum.h
@@ -96,6 +96,7 @@ enum WindowFunction {
     NoWindow,
     HannWindow
 };
+Q_DECLARE_METATYPE(WindowFunction)
 
 const WindowFunction DefaultWindowFunction = HannWindow;