Documentation: Port code snippets to new connection syntax

Task-number: PYSIDE-2182
Change-Id: I5f800cf3a4a7afefbc36a79372fc35449fa953f0
Reviewed-by: Mårten Nordheim <marten.nordheim@qt.io>
(cherry picked from commit 8fccba0e63f9484866398e77a7e8ee54ed80a0a2)
Reviewed-by: Qt Cherry-pick Bot <cherrypick_bot@qt-project.org>

3 files changed, 7 insertions, 12 deletions

diff --git a/src/network/doc/snippets/code/src_network_kernel_qdnslookup.cpp b/src/network/doc/snippets/code/src_network_kernel_qdnslookup.cpp
index fdcc8b0ce4..ce976001bb 100644
--- a/src/network/doc/snippets/code/src_network_kernel_qdnslookup.cpp
+++ b/src/network/doc/snippets/code/src_network_kernel_qdnslookup.cpp
@@ -6,8 +6,7 @@ void MyObject::lookupServers()
 {
     // Create a DNS lookup.
     dns = new QDnsLookup(this);
-    connect(dns, SIGNAL(finished()),
-            this, SLOT(handleServers()));
+    connect(dns, &QDnsLookup::finished, this, &MyObject::handleServers);
 
     // Find the XMPP servers for gmail.com
     dns->setType(QDnsLookup::SRV);
diff --git a/src/network/doc/snippets/code/src_network_kernel_qhostinfo.cpp b/src/network/doc/snippets/code/src_network_kernel_qhostinfo.cpp
index b845e5bcc7..7c39827b94 100644
--- a/src/network/doc/snippets/code/src_network_kernel_qhostinfo.cpp
+++ b/src/network/doc/snippets/code/src_network_kernel_qhostinfo.cpp
@@ -3,12 +3,10 @@
 
 //! [0]
 // To find the IP address of qt-project.org
-QHostInfo::lookupHost("qt-project.org",
-                      this, SLOT(printResults(QHostInfo)));
+QHostInfo::lookupHost("qt-project.org", this, &MyWidget::printResults);
 
 // To find the host name for 4.2.2.1
-QHostInfo::lookupHost("4.2.2.1",
-                      this, SLOT(printResults(QHostInfo)));
+QHostInfo::lookupHost("4.2.2.1", this, &MyWidget::printResults);
 //! [0]
 
 
@@ -18,8 +16,7 @@ QHostInfo info = QHostInfo::fromName("qt-project.org");
 
 
 //! [2]
-QHostInfo::lookupHost("www.kde.org",
-                      this, SLOT(lookedUp(QHostInfo)));
+QHostInfo::lookupHost("www.kde.org", this, &MyWidget::lookedUp);
 //! [2]
 
 
@@ -39,8 +36,7 @@ void MyWidget::lookedUp(const QHostInfo &host)
 
 
 //! [4]
-QHostInfo::lookupHost("4.2.2.1",
-                      this, SLOT(lookedUp(QHostInfo)));
+QHostInfo::lookupHost("4.2.2.1", this, &MyWidget::lookedUp);
 //! [4]
 
 
diff --git a/src/network/doc/snippets/code/src_network_ssl_qsslsocket.cpp b/src/network/doc/snippets/code/src_network_ssl_qsslsocket.cpp
index 6ad795fcb9..89d82d66f8 100644
--- a/src/network/doc/snippets/code/src_network_ssl_qsslsocket.cpp
+++ b/src/network/doc/snippets/code/src_network_ssl_qsslsocket.cpp
@@ -5,7 +5,7 @@ using namespace Qt::StringLiterals;
 
 //! [0]
 QSslSocket *socket = new QSslSocket(this);
-connect(socket, SIGNAL(encrypted()), this, SLOT(ready()));
+connect(socket, &QSslSocket::encrypted, this, &Receiver::ready);
 
 socket->connectToHostEncrypted("imap.example.com", 993);
 //! [0]
@@ -42,7 +42,7 @@ while (socket.waitForReadyRead())
 
 //! [3]
 QSslSocket socket;
-connect(&socket, SIGNAL(encrypted()), receiver, SLOT(socketEncrypted()));
+connect(&socket, &QSslSocket::encrypted, receiver, &Receiver::socketEncrypted);
 
 socket.connectToHostEncrypted("imap", 993);
 socket->write("1 CAPABILITY\r\n");