From d61ee49df4d540d08782c9fac1c42541d2f4f9b6 Mon Sep 17 00:00:00 2001
From: Friedemann Kleint <Friedemann.Kleint@theqtcompany.com>
Date: Thu, 11 Dec 2014 13:18:07 +0100
Subject: [PATCH] Windows: Do not register windows obtained by
 QWindow::fromWinId() for touch.

Fixes a warning:
RegisterTouchWindow() failed for window ''. (Access is denied.)

Task-number: QTBUG-43252
Change-Id: I92a565f3a5e2e8815eb709b5c6d0ccdba7330e31
Reviewed-by: Joerg Bornemann <joerg.bornemann@theqtcompany.com>
---
 src/plugins/platforms/windows/qwindowswindow.cpp | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/plugins/platforms/windows/qwindowswindow.cpp b/src/plugins/platforms/windows/qwindowswindow.cpp
index 05ed6aed53..7d67aa0d09 100644
--- a/src/plugins/platforms/windows/qwindowswindow.cpp
+++ b/src/plugins/platforms/windows/qwindowswindow.cpp
@@ -890,7 +890,8 @@ QWindowsWindow::QWindowsWindow(QWindow *aWindow, const QWindowsWindowData &data)
     updateDropSite();
 
 #ifndef Q_OS_WINCE
-    if (QWindowsContext::instance()->systemInfo() & QWindowsContext::SI_SupportsTouch) {
+    if ((QWindowsContext::instance()->systemInfo() & QWindowsContext::SI_SupportsTouch)
+        && aWindow->type() != Qt::ForeignWindow) {
         if (QWindowsContext::user32dll.registerTouchWindow(m_data.hwnd, 0)) {
             setFlag(TouchRegistered);
         } else {