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WinRT: Prevent GUI dispatcher lookup from non-GUI thread

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When we create an event dispatcher outside of the main thread, we
shouldn't be looking up the core event dispatcher as it will fail. This
ends up printing a scary warning for all e.g. Qt Quick apps when in
reality nothing bad actually happened.

Task-number: QTBUG-35327
Change-Id: I2060f0a9d4baffc42ca727e8d4e1ef7c13f6a2df
Reviewed-by: Maurice Kalinowski <maurice.kalinowski@digia.com>
This commit is contained in:
Andrew Knight 2014-03-16 12:38:50 +02:00 committed by The Qt Project
parent 15be1e8c06
commit 7f41e56ec3
1 changed files with 6 additions and 0 deletions
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6
src/corelib/kernel/qeventdispatcher_winrt.cpp
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@ -45,6 +45,7 @@
#include <QtCore/QThread>
#include <QtCore/QHash>
#include <private/qabstracteventdispatcher_p.h>
#include <private/qcoreapplication_p.h>
#include <wrl.h>
#include <windows.foundation.h>
@ -109,6 +110,11 @@ QEventDispatcherWinRT::QEventDispatcherWinRT(QObject *parent)
: QAbstractEventDispatcher(*new QEventDispatcherWinRTPrivate, parent)
{
Q_D(QEventDispatcherWinRT);
// Only look up the event dispatcher in the main thread
if (QThread::currentThread() != QCoreApplicationPrivate::theMainThread)
return;
ComPtr<ICoreApplication> application;
HRESULT hr = RoGetActivationFactory(HString::MakeReference(RuntimeClass_Windows_ApplicationModel_Core_CoreApplication).Get(),
IID_PPV_ARGS(&application));