Clean up btchat example

- Replace old connect syntax
- Clean up includes
- Replace 0 with nullptr
- Add socket error handling

Change-Id: Id4c7634db29a23184d3ce2d92ffa39c71505de12
Reviewed-by: Timur Pocheptsov <timur.pocheptsov@qt.io>
Reviewed-by: Alex Blasche <alexander.blasche@qt.io>

1 files changed, 2 insertions, 2 deletions

diff --git a/examples/bluetooth/btchat/main.cpp b/examples/bluetooth/btchat/main.cpp
index 84b33ae4..5c7bbf75 100644
--- a/examples/bluetooth/btchat/main.cpp
+++ b/examples/bluetooth/btchat/main.cpp
@@ -50,7 +50,7 @@
 
 #include "chat.h"
 
-#include <QApplication>
+#include <QtWidgets/qapplication.h>
 //#include <QtCore/QLoggingCategory>
 
 int main(int argc, char *argv[])
@@ -59,7 +59,7 @@ int main(int argc, char *argv[])
     QApplication app(argc, argv);
 
     Chat d;
-    QObject::connect(&d, SIGNAL(accepted()), &app, SLOT(quit()));
+    QObject::connect(&d, &Chat::accepted, &app, &QApplication::quit);
 
 #ifdef Q_OS_ANDROID
     d.showMaximized();