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chat.h Example File
dbus/dbus-chat/chat.h

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 #ifndef CHAT_H
 #define CHAT_H

 #include <QtCore/QStringList>
 #include <QtDBus/QtDBus>
 #include "ui_chatmainwindow.h"
 #include "ui_chatsetnickname.h"

 class ChatMainWindow: public QMainWindow, Ui::ChatMainWindow
 {
     Q_OBJECT
     QString m_nickname;
     QStringList m_messages;
 public:
     ChatMainWindow();
     ~ChatMainWindow();

     void rebuildHistory();

 signals:
     void message(const QString &nickname, const QString &text);
     void action(const QString &nickname, const QString &text);

 private slots:
     void messageSlot(const QString &nickname, const QString &text);
     void actionSlot(const QString &nickname, const QString &text);
     void textChangedSlot(const QString &newText);
     void sendClickedSlot();
     void changeNickname();
     void aboutQt();
     void exiting();
 };

 class NicknameDialog: public QDialog, public Ui::NicknameDialog
 {
     Q_OBJECT
 public:
     NicknameDialog(QWidget *parent = 0);
 };

 #endif