From 465e7475563db168af60251e43e5e770f3e665b8 Mon Sep 17 00:00:00 2001
From: Juha Vuolle <juha.vuolle@insta.fi>
Date: Wed, 2 Jun 2021 07:05:25 +0300
Subject: Add Co(Un)Initialize call to windows backend

The sensors are accessed through the COM library which requires
that the initialization routines are done.

Task-number: QTBUG-92510
Change-Id: Idf65b0076432bebbab0de9f24b5e9711d471d193
Reviewed-by: Oliver Wolff <oliver.wolff@qt.io>
---
 src/plugins/sensors/winrt/main.cpp | 10 ++++++++++
 1 file changed, 10 insertions(+)

(limited to 'src/plugins')

diff --git a/src/plugins/sensors/winrt/main.cpp b/src/plugins/sensors/winrt/main.cpp
index e66e0ade..2b868e2f 100644
--- a/src/plugins/sensors/winrt/main.cpp
+++ b/src/plugins/sensors/winrt/main.cpp
@@ -52,6 +52,7 @@
 #include <QtSensors/QSensorBackendFactory>
 #include <QtSensors/QSensorManager>
 #include <QtSensors/QSensorPluginInterface>
+#include <wrl.h>
 
 class WinRtSensorPlugin : public QObject, public QSensorPluginInterface, public QSensorBackendFactory
 {
@@ -60,8 +61,17 @@ class WinRtSensorPlugin : public QObject, public QSensorPluginInterface, public
     Q_INTERFACES(QSensorPluginInterface)
 public:
 
+    ~WinRtSensorPlugin()
+    {
+        CoUninitialize();
+    }
+
     void registerSensors() override
     {
+        if (FAILED(CoInitializeEx(nullptr, COINIT_APARTMENTTHREADED))) {
+            qErrnoWarning("CoInitializeEx() failed.");
+            return;
+        }
         QSensorManager::registerBackend(QAccelerometer::sensorType, QByteArrayLiteral("WinRtAccelerometer"), this);
         QSensorManager::registerBackend(QCompass::sensorType, QByteArrayLiteral("WinRtCompass"), this);
         QSensorManager::registerBackend(QGyroscope::sensorType, QByteArrayLiteral("WinRtGyroscope"), this);
-- 
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