diff options
authorMichael Brasser <>2020-02-22 15:50:40 -0600
committerMichael Brasser <>2020-03-09 13:24:44 -0600
commit7f0a20ad066020d913faff636b8a0c5f61d2dfe0 (patch)
parentbc42a549a309603ab4afe28b87406a663702aa24 (diff)
Document usage of QT_MULTIMEDIA_PREFERRED_PLUGINS on Windows
Task-number: QTBUG-82300 Change-Id: Ibbd960ef69b59e535af30ac10a238ddcf7634b66 Reviewed-by: Andy Shaw <>
1 files changed, 5 insertions, 0 deletions
diff --git a/src/multimedia/doc/src/platform-notes-windows.qdoc b/src/multimedia/doc/src/platform-notes-windows.qdoc
index e86d6a276..a69e96d99 100644
--- a/src/multimedia/doc/src/platform-notes-windows.qdoc
+++ b/src/multimedia/doc/src/platform-notes-windows.qdoc
@@ -42,6 +42,11 @@ was introduced in Windows Vista as a replacement for DirectShow and other
multimedia APIs. Consequently, WMF plugin in Qt is supported only for
Windows Vista and later versions of the operating system.
+The environment variable \c QT_MULTIMEDIA_PREFERRED_PLUGINS can be used to
+control the priority of the plugins. For example, setting it to
+"windowsmediafoundation" or "directshow" will cause the corresponding plugin
+to be the preferred one.
\section1 Limitations
The WMF plugin in Qt does not currently provide a camera backend. Instead,