From cbeacf0de9aae47bdc51931c1944f4d1f50cfb27 Mon Sep 17 00:00:00 2001
From: Michele Calgaro <michele.calgaro@yahoo.it>
Date: Wed, 30 Jul 2014 09:02:30 +0200
Subject: [PATCH] Fixed "TQApplication::postEvent: Unexpected null receiver"
 warning message. This resolves bug 1901 and 1909.

---
 src/kernel/qwidget.cpp | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/src/kernel/qwidget.cpp b/src/kernel/qwidget.cpp
index 2b36de6..461c7f3 100644
--- a/src/kernel/qwidget.cpp
+++ b/src/kernel/qwidget.cpp
@@ -5984,9 +5984,9 @@ QWidget  *QWidget::childAt( const QPoint & p, bool includeThis ) const
 
 void QWidget::updateGeometry()
 {
-    if ( !isTopLevel() && isShown() )
-	QApplication::postEvent( parentWidget(),
-				 new QEvent( QEvent::LayoutHint ) );
+  QWidget *parent = parentWidget();
+  if (parent && !isTopLevel() && isShown())
+	  QApplication::postEvent(parent, new QEvent(QEvent::LayoutHint));
 }