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40 #include <qtsingleapplication.h>
41 #include <QtGui/QTextEdit>
43 class TextEdit
: public QTextEdit
47 TextEdit(QWidget
*parent
= 0)
51 void append(const QString
&str
)
53 QTextEdit::append(str
);
61 int main(int argc
, char **argv
)
63 QtSingleApplication
instance(argc
, argv
);
64 if (instance
.sendMessage("Wake up!"))
68 logview
.setReadOnly(true);
71 instance
.setActivationWindow(&logview
);
73 QObject::connect(&instance
, SIGNAL(messageReceived(const QString
&)),
74 &logview
, SLOT(append(const QString
&)));
76 return instance
.exec();