More nullptr usage in headers

Diff generated by running clang-tidy's modernize-use-nullptr checker on
the CMake-based Qt version.

Skipping src/3rdparty, examples/, tests/

Change-Id: Ib182074e2e2fd52f63093f73b3e2e4c0cb7af188
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@qt.io>
Reviewed-by: Simon Hausmann <simon.hausmann@qt.io>

1 files changed, 2 insertions, 2 deletions

diff --git a/src/gui/kernel/qguiapplication_p.h b/src/gui/kernel/qguiapplication_p.h
index 61d9661286..65afa5de1b 100644
--- a/src/gui/kernel/qguiapplication_p.h
+++ b/src/gui/kernel/qguiapplication_p.h
@@ -115,7 +115,7 @@ public:
         if (QCoreApplication::instance())
             return QCoreApplication::instance()->d_func()->threadData->eventDispatcher.load();
         else
-            return 0;
+            return nullptr;
     }
 
     static void processMouseEvent(QWindowSystemInterfacePrivate::MouseEvent *e);
@@ -205,7 +205,7 @@ public:
     static void showModalWindow(QWindow *window);
     static void hideModalWindow(QWindow *window);
     static void updateBlockedStatus(QWindow *window);
-    virtual bool isWindowBlocked(QWindow *window, QWindow **blockingWindow = 0) const;
+    virtual bool isWindowBlocked(QWindow *window, QWindow **blockingWindow = nullptr) const;
     virtual bool popupActive() { return false; }
 
     static ulong mousePressTime;