QLocalServer/QLocalSocket 实现保证程序只有一个实例

本文主要是介绍QLocalServer/QLocalSocket 实现保证程序只有一个实例，希望对大家解决编程问题提供一定的参考价值，需要的开发者们随着小编来一起学习吧！

1、单实例封装类：

头文件：

/*LANShare - LAN file transfer.Copyright (C) 2016 Abdul Aris R. <abdularisrahmanudin10@gmail.com>This program is free software: you can redistribute it and/or modifyit under the terms of the GNU General Public License as published bythe Free Software Foundation, either version 3 of the License, or(at your option) any later version.This program is distributed in the hope that it will be useful,but WITHOUT ANY WARRANTY; without even the implied warranty ofMERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See theGNU General Public License for more details.You should have received a copy of the GNU General Public Licensealong with this program.  If not, see <http://www.gnu.org/licenses/>.
*/#ifndef SINGLEINSTANCE_H
#define SINGLEINSTANCE_H#include <QObject>
#include <QtNetwork/QLocalServer>/** SingleInstance, di

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