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authorOliver Wolff <oliver.wolff@theqtcompany.com>2015-12-02 13:17:30 +0100
committerMaurice Kalinowski <maurice.kalinowski@theqtcompany.com>2015-12-03 18:38:45 +0000
commit13fd3e9611391742b4bea86cb2f4740534daf695 (patch)
tree416d47002271fa6d81bf26bb266ae0d73f76143d /src/plugins/sensors
parent2494c271d49f30e783cba20dd430b64bb9261702 (diff)
winrt: Fix application hang on sensor start/stop
If addition and removal are not done in the Xaml thread, the functions might not return at all. Task-number: QTBUG-49741 Change-Id: Iabdea2c7ee18bf851ab70adfeb28b09781b8b609 Reviewed-by: Andrew Knight <andrew.knight@intopalo.com> Reviewed-by: Maurice Kalinowski <maurice.kalinowski@theqtcompany.com>
Diffstat (limited to 'src/plugins/sensors')
-rw-r--r--src/plugins/sensors/winrt/winrt.pro2
-rw-r--r--src/plugins/sensors/winrt/winrtaccelerometer.cpp42
-rw-r--r--src/plugins/sensors/winrt/winrtambientlightsensor.cpp42
-rw-r--r--src/plugins/sensors/winrt/winrtcompass.cpp45
-rw-r--r--src/plugins/sensors/winrt/winrtgyroscope.cpp42
-rw-r--r--src/plugins/sensors/winrt/winrtorientationsensor.cpp42
-rw-r--r--src/plugins/sensors/winrt/winrtrotationsensor.cpp42
7 files changed, 156 insertions, 101 deletions
diff --git a/src/plugins/sensors/winrt/winrt.pro b/src/plugins/sensors/winrt/winrt.pro
index 4a03bf2e..67ae5304 100644
--- a/src/plugins/sensors/winrt/winrt.pro
+++ b/src/plugins/sensors/winrt/winrt.pro
@@ -1,5 +1,5 @@
TARGET = qtsensors_winrt
-QT = sensors core
+QT = sensors core core_private
PLUGIN_TYPE = sensors
PLUGIN_CLASS_NAME = WinRtSensorPlugin
diff --git a/src/plugins/sensors/winrt/winrtaccelerometer.cpp b/src/plugins/sensors/winrt/winrtaccelerometer.cpp
index f2728a86..fba9594c 100644
--- a/src/plugins/sensors/winrt/winrtaccelerometer.cpp
+++ b/src/plugins/sensors/winrt/winrtaccelerometer.cpp
@@ -38,7 +38,9 @@
#include "winrtcommon.h"
#include <QtSensors/QAccelerometerReading>
+#include <private/qeventdispatcher_winrt_p.h>
+#include <functional>
#include <wrl.h>
#include <windows.devices.sensors.h>
using namespace Microsoft::WRL;
@@ -114,20 +116,24 @@ WinRtAccelerometer::WinRtAccelerometer(QSensor *sensor)
: QSensorBackend(sensor), d_ptr(new WinRtAccelerometerPrivate(this))
{
Q_D(WinRtAccelerometer);
- HStringReference classId(RuntimeClass_Windows_Devices_Sensors_Accelerometer);
- ComPtr<IAccelerometerStatics> factory;
- HRESULT hr = RoGetActivationFactory(classId.Get(), IID_PPV_ARGS(&factory));
- if (FAILED(hr)) {
- qCWarning(lcWinRtSensors) << "Unable to initialize accelerometer factory."
- << qt_error_string(hr);
- sensorError(hr);
- return;
- }
+ HRESULT hr = QEventDispatcherWinRT::runOnXamlThread([d]() {
+ HStringReference classId(RuntimeClass_Windows_Devices_Sensors_Accelerometer);
+ ComPtr<IAccelerometerStatics> factory;
+ HRESULT hr = RoGetActivationFactory(classId.Get(), IID_PPV_ARGS(&factory));
+ if (FAILED(hr)) {
+ qCWarning(lcWinRtSensors) << "Unable to initialize accelerometer factory."
+ << qt_error_string(hr);
+ return hr;
+ }
- hr = factory->GetDefault(&d->sensor);
+ hr = factory->GetDefault(&d->sensor);
+ if (FAILED(hr)) {
+ qCWarning(lcWinRtSensors) << "Unable to get default accelerometer."
+ << qt_error_string(hr);
+ }
+ return hr;
+ });
if (FAILED(hr) || !d->sensor) {
- qCWarning(lcWinRtSensors) << "Unable to get default accelerometer."
- << qt_error_string(hr);
sensorError(hr);
return;
}
@@ -158,9 +164,11 @@ void WinRtAccelerometer::start()
if (d->token.value)
return;
- ComPtr<AccelerometerReadingHandler> callback =
+ HRESULT hr = QEventDispatcherWinRT::runOnXamlThread([d]() {
+ ComPtr<AccelerometerReadingHandler> callback =
Callback<AccelerometerReadingHandler>(d, &WinRtAccelerometerPrivate::readingChanged);
- HRESULT hr = d->sensor->add_ReadingChanged(callback.Get(), &d->token);
+ return d->sensor->add_ReadingChanged(callback.Get(), &d->token);
+ });
if (FAILED(hr)) {
qCWarning(lcWinRtSensors) << "Unable to attach to reading changed event."
<< qt_error_string(hr);
@@ -189,14 +197,16 @@ void WinRtAccelerometer::stop()
if (!d->token.value)
return;
- HRESULT hr = d->sensor->remove_ReadingChanged(d->token);
+ HRESULT hr = QEventDispatcherWinRT::runOnXamlThread([d]() {
+ return d->sensor->remove_ReadingChanged(d->token);
+ });
if (FAILED(hr)) {
qCWarning(lcWinRtSensors) << "Unable to detach from reading changed event."
<< qt_error_string(hr);
sensorError(hr);
return;
}
- d->sensor->put_ReportInterval(0);
+ hr = d->sensor->put_ReportInterval(0);
if (FAILED(hr)) {
qCWarning(lcWinRtSensors) << "Unable to reset report interval."
<< qt_error_string(hr);
diff --git a/src/plugins/sensors/winrt/winrtambientlightsensor.cpp b/src/plugins/sensors/winrt/winrtambientlightsensor.cpp
index b1e1c52c..d0d7fd7d 100644
--- a/src/plugins/sensors/winrt/winrtambientlightsensor.cpp
+++ b/src/plugins/sensors/winrt/winrtambientlightsensor.cpp
@@ -38,7 +38,9 @@
#include "winrtcommon.h"
#include <QtSensors/QAmbientLightSensor>
+#include <private/qeventdispatcher_winrt_p.h>
+#include <functional>
#include <wrl.h>
#include <windows.devices.sensors.h>
using namespace Microsoft::WRL;
@@ -113,20 +115,24 @@ WinRtAmbientLightSensor::WinRtAmbientLightSensor(QSensor *sensor)
: QSensorBackend(sensor), d_ptr(new WinRtAmbientLightSensorPrivate(this))
{
Q_D(WinRtAmbientLightSensor);
- HStringReference classId(RuntimeClass_Windows_Devices_Sensors_LightSensor);
- ComPtr<ILightSensorStatics> factory;
- HRESULT hr = RoGetActivationFactory(classId.Get(), IID_PPV_ARGS(&factory));
- if (FAILED(hr)) {
- qCWarning(lcWinRtSensors) << "Unable to initialize light sensor factory."
- << qt_error_string(hr);
- sensorError(hr);
- return;
- }
+ HRESULT hr = QEventDispatcherWinRT::runOnXamlThread([d]() {
+ HStringReference classId(RuntimeClass_Windows_Devices_Sensors_LightSensor);
+ ComPtr<ILightSensorStatics> factory;
+ HRESULT hr = RoGetActivationFactory(classId.Get(), IID_PPV_ARGS(&factory));
+ if (FAILED(hr)) {
+ qCWarning(lcWinRtSensors) << "Unable to initialize light sensor factory."
+ << qt_error_string(hr);
+ return hr;
+ }
- hr = factory->GetDefault(&d->sensor);
+ hr = factory->GetDefault(&d->sensor);
+ if (FAILED(hr)) {
+ qCWarning(lcWinRtSensors) << "Unable to get default light sensor."
+ << qt_error_string(hr);
+ }
+ return hr;
+ });
if (FAILED(hr) || !d->sensor) {
- qCWarning(lcWinRtSensors) << "Unable to get default light sensor."
- << qt_error_string(hr);
sensorError(hr);
return;
}
@@ -157,9 +163,11 @@ void WinRtAmbientLightSensor::start()
if (d->token.value)
return;
- ComPtr<LightSensorReadingHandler> callback =
+ HRESULT hr = QEventDispatcherWinRT::runOnXamlThread([d]() {
+ ComPtr<LightSensorReadingHandler> callback =
Callback<LightSensorReadingHandler>(d, &WinRtAmbientLightSensorPrivate::readingChanged);
- HRESULT hr = d->sensor->add_ReadingChanged(callback.Get(), &d->token);
+ return d->sensor->add_ReadingChanged(callback.Get(), &d->token);
+ });
if (FAILED(hr)) {
qCWarning(lcWinRtSensors) << "Unable to attach to reading changed event."
<< qt_error_string(hr);
@@ -188,14 +196,16 @@ void WinRtAmbientLightSensor::stop()
if (!d->token.value)
return;
- HRESULT hr = d->sensor->remove_ReadingChanged(d->token);
+ HRESULT hr = QEventDispatcherWinRT::runOnXamlThread([d]() {
+ return d->sensor->remove_ReadingChanged(d->token);
+ });
if (FAILED(hr)) {
qCWarning(lcWinRtSensors) << "Unable to detach from reading changed event."
<< qt_error_string(hr);
sensorError(hr);
return;
}
- d->sensor->put_ReportInterval(0);
+ hr = d->sensor->put_ReportInterval(0);
if (FAILED(hr)) {
qCWarning(lcWinRtSensors) << "Unable to reset report interval."
<< qt_error_string(hr);
diff --git a/src/plugins/sensors/winrt/winrtcompass.cpp b/src/plugins/sensors/winrt/winrtcompass.cpp
index 9c57db9d..22f4ac5b 100644
--- a/src/plugins/sensors/winrt/winrtcompass.cpp
+++ b/src/plugins/sensors/winrt/winrtcompass.cpp
@@ -38,9 +38,9 @@
#include "winrtcommon.h"
#include <QtSensors/QCompass>
+#include <private/qeventdispatcher_winrt_p.h>
-QT_USE_NAMESPACE
-
+#include <functional>
#include <wrl.h>
#include <windows.devices.sensors.h>
using namespace Microsoft::WRL;
@@ -133,20 +133,24 @@ WinRtCompass::WinRtCompass(QSensor *sensor)
: QSensorBackend(sensor), d_ptr(new WinRtCompassPrivate(this))
{
Q_D(WinRtCompass);
- HStringReference classId(RuntimeClass_Windows_Devices_Sensors_Compass);
- ComPtr<ICompassStatics> factory;
- HRESULT hr = RoGetActivationFactory(classId.Get(), IID_PPV_ARGS(&factory));
- if (FAILED(hr)) {
- qCWarning(lcWinRtSensors) << "Unable to initialize light sensor factory."
- << qt_error_string(hr);
- sensorError(hr);
- return;
- }
+ HRESULT hr = QEventDispatcherWinRT::runOnXamlThread([d]() {
+ HStringReference classId(RuntimeClass_Windows_Devices_Sensors_Compass);
+ ComPtr<ICompassStatics> factory;
+ HRESULT hr = RoGetActivationFactory(classId.Get(), IID_PPV_ARGS(&factory));
+ if (FAILED(hr)) {
+ qCWarning(lcWinRtSensors) << "Unable to initialize light sensor factory."
+ << qt_error_string(hr);
+ return hr;
+ }
- hr = factory->GetDefault(&d->sensor);
+ hr = factory->GetDefault(&d->sensor);
+ if (FAILED(hr)) {
+ qCWarning(lcWinRtSensors) << "Unable to get default compass."
+ << qt_error_string(hr);
+ }
+ return hr;
+ });
if (FAILED(hr) || !d->sensor) {
- qCWarning(lcWinRtSensors) << "Unable to get default compass."
- << qt_error_string(hr);
sensorError(hr);
return;
}
@@ -177,9 +181,11 @@ void WinRtCompass::start()
if (d->token.value)
return;
- ComPtr<CompassReadingHandler> callback =
+ HRESULT hr = QEventDispatcherWinRT::runOnXamlThread([d]() {
+ ComPtr<CompassReadingHandler> callback =
Callback<CompassReadingHandler>(d, &WinRtCompassPrivate::readingChanged);
- HRESULT hr = d->sensor->add_ReadingChanged(callback.Get(), &d->token);
+ return d->sensor->add_ReadingChanged(callback.Get(), &d->token);
+ });
if (FAILED(hr)) {
qCWarning(lcWinRtSensors) << "Unable to attach to reading changed event."
<< qt_error_string(hr);
@@ -207,15 +213,16 @@ void WinRtCompass::stop()
return;
if (!d->token.value)
return;
-
- HRESULT hr = d->sensor->remove_ReadingChanged(d->token);
+ HRESULT hr = QEventDispatcherWinRT::runOnXamlThread([d]() {
+ return d->sensor->remove_ReadingChanged(d->token);
+ });
if (FAILED(hr)) {
qCWarning(lcWinRtSensors) << "Unable to detach from reading changed event."
<< qt_error_string(hr);
sensorError(hr);
return;
}
- d->sensor->put_ReportInterval(0);
+ hr = d->sensor->put_ReportInterval(0);
if (FAILED(hr)) {
qCWarning(lcWinRtSensors) << "Unable to reset report interval."
<< qt_error_string(hr);
diff --git a/src/plugins/sensors/winrt/winrtgyroscope.cpp b/src/plugins/sensors/winrt/winrtgyroscope.cpp
index e7910ab2..70d7980f 100644
--- a/src/plugins/sensors/winrt/winrtgyroscope.cpp
+++ b/src/plugins/sensors/winrt/winrtgyroscope.cpp
@@ -38,7 +38,9 @@
#include "winrtcommon.h"
#include <QtSensors/QGyroscope>
+#include <private/qeventdispatcher_winrt_p.h>
+#include <functional>
#include <wrl.h>
#include <windows.devices.sensors.h>
using namespace Microsoft::WRL;
@@ -111,20 +113,24 @@ WinRtGyroscope::WinRtGyroscope(QSensor *sensor)
: QSensorBackend(sensor), d_ptr(new WinRtGyroscopePrivate(this))
{
Q_D(WinRtGyroscope);
- HStringReference classId(RuntimeClass_Windows_Devices_Sensors_Gyrometer);
- ComPtr<IGyrometerStatics> factory;
- HRESULT hr = RoGetActivationFactory(classId.Get(), IID_PPV_ARGS(&factory));
- if (FAILED(hr)) {
- qCWarning(lcWinRtSensors) << "Unable to initialize gyroscope sensor factory."
- << qt_error_string(hr);
- sensorError(hr);
- return;
- }
+ HRESULT hr = QEventDispatcherWinRT::runOnXamlThread([d]() {
+ HStringReference classId(RuntimeClass_Windows_Devices_Sensors_Gyrometer);
+ ComPtr<IGyrometerStatics> factory;
+ HRESULT hr = RoGetActivationFactory(classId.Get(), IID_PPV_ARGS(&factory));
+ if (FAILED(hr)) {
+ qCWarning(lcWinRtSensors) << "Unable to initialize gyroscope sensor factory."
+ << qt_error_string(hr);
+ return hr;
+ }
- hr = factory->GetDefault(&d->sensor);
+ hr = factory->GetDefault(&d->sensor);
+ if (FAILED(hr)) {
+ qCWarning(lcWinRtSensors) << "Unable to get default gyroscope sensor."
+ << qt_error_string(hr);
+ }
+ return hr;
+ });
if (FAILED(hr) || !d->sensor) {
- qCWarning(lcWinRtSensors) << "Unable to get default gyroscope sensor."
- << qt_error_string(hr);
sensorError(hr);
return;
}
@@ -155,9 +161,11 @@ void WinRtGyroscope::start()
if (d->token.value)
return;
- ComPtr<InclinometerReadingHandler> callback =
+ HRESULT hr = QEventDispatcherWinRT::runOnXamlThread([d]() {
+ ComPtr<InclinometerReadingHandler> callback =
Callback<InclinometerReadingHandler>(d, &WinRtGyroscopePrivate::readingChanged);
- HRESULT hr = d->sensor->add_ReadingChanged(callback.Get(), &d->token);
+ return d->sensor->add_ReadingChanged(callback.Get(), &d->token);
+ });
if (FAILED(hr)) {
qCWarning(lcWinRtSensors) << "Unable to attach to reading changed event."
<< qt_error_string(hr);
@@ -186,14 +194,16 @@ void WinRtGyroscope::stop()
if (!d->token.value)
return;
- HRESULT hr = d->sensor->remove_ReadingChanged(d->token);
+ HRESULT hr = QEventDispatcherWinRT::runOnXamlThread([d]() {
+ return d->sensor->remove_ReadingChanged(d->token);
+ });
if (FAILED(hr)) {
qCWarning(lcWinRtSensors) << "Unable to detach from reading changed event."
<< qt_error_string(hr);
sensorError(hr);
return;
}
- d->sensor->put_ReportInterval(0);
+ hr = d->sensor->put_ReportInterval(0);
if (FAILED(hr)) {
qCWarning(lcWinRtSensors) << "Unable to reset report interval."
<< qt_error_string(hr);
diff --git a/src/plugins/sensors/winrt/winrtorientationsensor.cpp b/src/plugins/sensors/winrt/winrtorientationsensor.cpp
index a40dbb9d..c679d925 100644
--- a/src/plugins/sensors/winrt/winrtorientationsensor.cpp
+++ b/src/plugins/sensors/winrt/winrtorientationsensor.cpp
@@ -38,9 +38,9 @@
#include "winrtcommon.h"
#include <QtSensors/QOrientationSensor>
+#include <private/qeventdispatcher_winrt_p.h>
-QT_USE_NAMESPACE
-
+#include <functional>
#include <wrl.h>
#include <windows.devices.sensors.h>
using namespace Microsoft::WRL;
@@ -119,20 +119,24 @@ WinRtOrientationSensor::WinRtOrientationSensor(QSensor *sensor)
: QSensorBackend(sensor), d_ptr(new WinRtOrientationSensorPrivate(this))
{
Q_D(WinRtOrientationSensor);
- HStringReference classId(RuntimeClass_Windows_Devices_Sensors_SimpleOrientationSensor);
- ComPtr<ISimpleOrientationSensorStatics> factory;
- HRESULT hr = RoGetActivationFactory(classId.Get(), IID_PPV_ARGS(&factory));
- if (FAILED(hr)) {
- qCWarning(lcWinRtSensors) << "Unable to initialize orientation sensor factory."
- << qt_error_string(hr);
- sensorError(hr);
- return;
- }
+ HRESULT hr = QEventDispatcherWinRT::runOnXamlThread([d]() {
+ HStringReference classId(RuntimeClass_Windows_Devices_Sensors_SimpleOrientationSensor);
+ ComPtr<ISimpleOrientationSensorStatics> factory;
+ HRESULT hr = RoGetActivationFactory(classId.Get(), IID_PPV_ARGS(&factory));
+ if (FAILED(hr)) {
+ qCWarning(lcWinRtSensors) << "Unable to initialize orientation sensor factory."
+ << qt_error_string(hr);
+ return hr;
+ }
- hr = factory->GetDefault(&d->sensor);
+ hr = factory->GetDefault(&d->sensor);
+ if (FAILED(hr)) {
+ qCWarning(lcWinRtSensors) << "Unable to get default orientation sensor."
+ << qt_error_string(hr);
+ }
+ return hr;
+ });
if (FAILED(hr) || !d->sensor) {
- qCWarning(lcWinRtSensors) << "Unable to get default orientation sensor."
- << qt_error_string(hr);
sensorError(hr);
return;
}
@@ -152,9 +156,11 @@ void WinRtOrientationSensor::start()
if (d->token.value)
return;
- ComPtr<SimpleOrientationReadingHandler> callback =
+ HRESULT hr = QEventDispatcherWinRT::runOnXamlThread([d]() {
+ ComPtr<SimpleOrientationReadingHandler> callback =
Callback<SimpleOrientationReadingHandler>(d, &WinRtOrientationSensorPrivate::readingChanged);
- HRESULT hr = d->sensor->add_OrientationChanged(callback.Get(), &d->token);
+ return d->sensor->add_OrientationChanged(callback.Get(), &d->token);
+ });
if (FAILED(hr)) {
qCWarning(lcWinRtSensors) << "Unable to attach to reading changed event."
<< qt_error_string(hr);
@@ -171,7 +177,9 @@ void WinRtOrientationSensor::stop()
if (!d->token.value)
return;
- HRESULT hr = d->sensor->remove_OrientationChanged(d->token);
+ HRESULT hr = QEventDispatcherWinRT::runOnXamlThread([d]() {
+ return d->sensor->remove_OrientationChanged(d->token);
+ });
if (FAILED(hr)) {
qCWarning(lcWinRtSensors) << "Unable to detach from reading changed event."
<< qt_error_string(hr);
diff --git a/src/plugins/sensors/winrt/winrtrotationsensor.cpp b/src/plugins/sensors/winrt/winrtrotationsensor.cpp
index 93c19b0a..570ef0bb 100644
--- a/src/plugins/sensors/winrt/winrtrotationsensor.cpp
+++ b/src/plugins/sensors/winrt/winrtrotationsensor.cpp
@@ -38,7 +38,9 @@
#include "winrtcommon.h"
#include <QtSensors/QRotationSensor>
+#include <private/qeventdispatcher_winrt_p.h>
+#include <functional>
#include <wrl.h>
#include <windows.devices.sensors.h>
using namespace Microsoft::WRL;
@@ -109,20 +111,24 @@ WinRtRotationSensor::WinRtRotationSensor(QSensor *sensor)
: QSensorBackend(sensor), d_ptr(new WinRtRotationSensorPrivate(this))
{
Q_D(WinRtRotationSensor);
- HStringReference classId(RuntimeClass_Windows_Devices_Sensors_Inclinometer);
- ComPtr<IInclinometerStatics> factory;
- HRESULT hr = RoGetActivationFactory(classId.Get(), IID_PPV_ARGS(&factory));
- if (FAILED(hr)) {
- qCWarning(lcWinRtSensors) << "Unable to initialize rotation sensor factory."
- << qt_error_string(hr);
- sensorError(hr);
- return;
- }
+ HRESULT hr = QEventDispatcherWinRT::runOnXamlThread([d]() {
+ HStringReference classId(RuntimeClass_Windows_Devices_Sensors_Inclinometer);
+ ComPtr<IInclinometerStatics> factory;
+ HRESULT hr = RoGetActivationFactory(classId.Get(), IID_PPV_ARGS(&factory));
+ if (FAILED(hr)) {
+ qCWarning(lcWinRtSensors) << "Unable to initialize rotation sensor factory."
+ << qt_error_string(hr);
+ return hr;
+ }
- hr = factory->GetDefault(&d->sensor);
+ hr = factory->GetDefault(&d->sensor);
+ if (FAILED(hr)) {
+ qCWarning(lcWinRtSensors) << "Unable to get default rotation sensor."
+ << qt_error_string(hr);
+ }
+ return hr;
+ });
if (FAILED(hr) || !d->sensor) {
- qCWarning(lcWinRtSensors) << "Unable to get default rotation sensor."
- << qt_error_string(hr);
sensorError(hr);
return;
}
@@ -153,9 +159,11 @@ void WinRtRotationSensor::start()
if (d->token.value)
return;
- ComPtr<InclinometerReadingHandler> callback =
+ HRESULT hr = QEventDispatcherWinRT::runOnXamlThread([d]() {
+ ComPtr<InclinometerReadingHandler> callback =
Callback<InclinometerReadingHandler>(d, &WinRtRotationSensorPrivate::readingChanged);
- HRESULT hr = d->sensor->add_ReadingChanged(callback.Get(), &d->token);
+ return d->sensor->add_ReadingChanged(callback.Get(), &d->token);
+ });
if (FAILED(hr)) {
qCWarning(lcWinRtSensors) << "Unable to attach to reading changed event."
<< qt_error_string(hr);
@@ -184,14 +192,16 @@ void WinRtRotationSensor::stop()
if (!d->token.value)
return;
- HRESULT hr = d->sensor->remove_ReadingChanged(d->token);
+ HRESULT hr = QEventDispatcherWinRT::runOnXamlThread([d]() {
+ return d->sensor->remove_ReadingChanged(d->token);
+ });
if (FAILED(hr)) {
qCWarning(lcWinRtSensors) << "Unable to detach from reading changed event."
<< qt_error_string(hr);
sensorError(hr);
return;
}
- d->sensor->put_ReportInterval(0);
+ hr = d->sensor->put_ReportInterval(0);
if (FAILED(hr)) {
qCWarning(lcWinRtSensors) << "Unable to reset report interval."
<< qt_error_string(hr);