1 files changed, 6 insertions, 0 deletions
diff --git a/src/plugins/platforms/windows/qwindowswindow.cpp b/src/plugins/platforms/windows/qwindowswindow.cpp
index 4cf8fcf4da..6b490b9404 100644
--- a/src/plugins/platforms/windows/qwindowswindow.cpp
+++ b/src/plugins/platforms/windows/qwindowswindow.cpp
@@ -2294,6 +2294,12 @@ void QWindowsWindow::registerTouchWindow(QWindowsWindowFunctions::TouchWindowTou
 #ifndef Q_OS_WINCE
     if ((QWindowsContext::instance()->systemInfo() & QWindowsContext::SI_SupportsTouch)
         && window()->type() != Qt::ForeignWindow) {
+        ULONG touchFlags = 0;
+        const bool ret = QWindowsContext::user32dll.isTouchWindow(m_data.hwnd, &touchFlags);
+        // Return if it is not a touch window or the flags are already set by a hook
+        // such as HCBT_CREATEWND
+        if (!ret || touchFlags != 0)
+            return;
         if (QWindowsContext::user32dll.registerTouchWindow(m_data.hwnd, (ULONG)touchTypes))
             setFlag(TouchRegistered);
         else