In-App purchasing demo

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 #include "inapptransaction.h"

 class InAppTransactionPrivate
 {
 public:
     InAppTransactionPrivate(InAppTransaction::TransactionStatus s,
                              InAppProduct *p)
         : status(s)
         , product(p)
     {
     }

     InAppTransaction::TransactionStatus status;
     InAppProduct *product;
 };

 InAppTransaction::InAppTransaction(TransactionStatus status,
                                      InAppProduct *product,
                                      QObject *parent)
     : QObject(parent)
 {
     d = QSharedPointer<InAppTransactionPrivate>(new InAppTransactionPrivate(status, product));
 }

 InAppTransaction::~InAppTransaction()
 {
 }

 InAppProduct *InAppTransaction::product() const
 {
     return d->product;
 }

 InAppTransaction::TransactionStatus InAppTransaction::status() const
 {
     return d->status;
 }

 InAppTransaction::FailureReason InAppTransaction::failureReason() const
 {
     return NoFailure;
 }

 QString InAppTransaction::errorString() const
 {
     return QString();
 }

 QDateTime InAppTransaction::timestamp() const
 {
     return QDateTime();
 }

 QString InAppTransaction::orderId() const
 {
     return QString();
 }

 QString InAppTransaction::platformProperty(const QString &propertyName) const
 {
     Q_UNUSED(propertyName);
     return QString();
 }