Updated Hello GL2 Example to new Signal/Slot syntax

The Hello GL2 Example was using the older Signal/Slot syntax that made
use of the macros `SIGNAL()` and `SLOT()`.  I changed it to the newer
one.

Change-Id: I8e55015383847a04b07f751fe9fc94b81956a896
Reviewed-by: Laszlo Agocs <laszlo.agocs@theqtcompany.com>

1 files changed, 1 insertions, 1 deletions

diff --git a/examples/opengl/hellogl2/mainwindow.cpp b/examples/opengl/hellogl2/mainwindow.cpp
index 104cf24b37..b938300349 100644
--- a/examples/opengl/hellogl2/mainwindow.cpp
+++ b/examples/opengl/hellogl2/mainwindow.cpp
@@ -51,7 +51,7 @@ MainWindow::MainWindow()
     QAction *addNew = new QAction(menuWindow);
     addNew->setText(tr("Add new"));
     menuWindow->addAction(addNew);
-    connect(addNew, SIGNAL(triggered()), this, SLOT(onAddNew()));
+    connect(addNew, &QAction::triggered, this, &MainWindow::onAddNew);
     setMenuBar(menuBar);
 
     onAddNew();