QT读写注册表技术链接20191118

https://www.cnblogs.com/mzy-google/p/5162106.html

#include "qtregedit.h"
#include <QSettings>
#include <QDebug>

QtRegedit::QtRegedit(QWidget *parent, Qt::WFlags flags)
: QMainWindow(parent, flags)
{
	ui.setupUi(this);
	connect(ui.btnCreate,SIGNAL(clicked()),this,SLOT(onbtnCreate()));
}

QtRegedit::~QtRegedit()
{

}

void QtRegedit::onbtnCreate()//方法一
{
	//1、设置公司和产品名称
	QCoreApplication::setOrganizationName("MySoft");
	QCoreApplication::setApplicationName("Star Runner");
	//2、QSettings构造函数
	QSettings settings(QSettings::NativeFormat,
		QSettings::UserScope,
		QCoreApplication::organizationName(),
		QCoreApplication::applicationName());
	//3、写入注册表
	settings.setValue("Name","Star Runner");
	settings.setValue("Version","1");
	//4、读取注册表中的内容
	QString strName = settings.value("Name").toString();
	int nVersion = settings.value("Version").toInt();
	qDebug()<<strName<<nVersion<<endl;
	//5、分目录存储（多级分组）
	settings.beginGroup("Soft1.1");
	settings.setValue("Name","Star Runner");
	settings.setValue("Version","1.1");
	{
		settings.beginGroup("Soft1.1.1");
		settings.setValue("Name","Star Runner");
		settings.setValue("Version","1.1.1");
		settings.endGroup();
	}
	settings.endGroup();

	settings.beginGroup("Soft1.2");
	settings.setValue("Name","Star Runner");
	settings.setValue("Version","1.2");
	{
		settings.beginGroup("Soft1.2.1");
		settings.setValue("Name","Star Runner");
		settings.setValue("Version","1.2.1");
		settings.endGroup();
	}
	settings.endGroup();

}

方法二：

#include "qregedit2.h"
#include <QSettings>

QRegedit2::QRegedit2(QWidget *parent, Qt::WFlags flags)
: QMainWindow(parent, flags)
{
	ui.setupUi(this);
	connect(ui.btnCreate,SIGNAL(clicked()),this,SLOT(onbtnCreate()));
}

QRegedit2::~QRegedit2()
{

}

void QRegedit2::onbtnCreate()
{
	QSettings* reg = NULL;
	//1、建立注册表目录
	reg = new QSettings("HKEY_CURRENT_USER\\Software\\BTZZ44\\Admin",
		QSettings::NativeFormat);
	//2、往目录内添加
	reg->setValue("Name","Soft1");
	reg->setValue("VerSion","1.0");

	reg = new QSettings("HKEY_CURRENT_USER\\Software\\BTZZ44\\Operator",
		QSettings::NativeFormat);
	//2、往目录内添加
	reg->setValue("Name","Soft2");
	reg->setValue("VerSion","2.0");

	reg = new QSettings("HKEY_CURRENT_USER\\Software\\BTZZ44\\Matain",
		QSettings::NativeFormat);
	//2、往目录内添加
	reg->setValue("Name","Soft3");
	reg->setValue("VerSion","3.0");

}