Qt读写注册表和ini文件

Qt读写注册表和ini文件

分类： QT 2010-08-05 16:50 1571人阅读 评论(1) 收藏 举报

qtinideletenull

1、用QSettings写注册表

 

1. QSettings *reg = new QSettings("HKEY_CURRENT_USER//Software//yinhaifan",  
2.                      QSettings::NativeFormat);  
3.      reg->setValue("registered",true);  
4.      delete reg;  

 

QSettings *reg = new QSettings("HKEY_CURRENT_USER//Software//yinhaifan", QSettings::NativeFormat); reg->setValue("registered",true); delete reg;

当然reg->setValue还可以写入字符串，整型之类的数据。

比如reg->setValue("registered","yes");

2、用QString读注册表

 

1. QSettings *reg = new QSettings("HKEY_CURRENT_USER//Software//yinhaifan",  
2.                  QSettings::NativeFormat);  
3. if (reg->value("registered",false).toBool())  
4. {  
5.      QMessageBox::information(NULL,"information","registered");  
6. }  
7. delete reg;  

 

QSettings *reg = new QSettings("HKEY_CURRENT_USER//Software//yinhaifan", QSettings::NativeFormat); if (reg->value("registered",false).toBool()) { QMessageBox::information(NULL,"information","registered"); } delete reg;

还可以toInt(),toString()等。

3、用QSettings写ini文件:

 

1. QSettings *ConfigIni = new QSettings("D://a.ini",QSettings::IniFormat,0);  
2. ConfigIni->setValue("/config/node1",ui->lineEdit->text());  
3. delete ConfigIni;  

 

QSettings *ConfigIni = new QSettings("D://a.ini",QSettings::IniFormat,0); ConfigIni->setValue("/config/node1",ui->lineEdit->text()); delete ConfigIni;

4、用QSettings读ini文件:

 

1. QSettings *ConfigIni = new QSettings("D://a.ini",QSettings::IniFormat,0);  
2. ui->lineEdit_2->setText(ConfigIni->value("/config/node1","20").toString());  
3. delete ConfigIni;  

 

QSettings *ConfigIni = new QSettings("D://a.ini",QSettings::IniFormat,0); ui->lineEdit_2->setText(ConfigIni->value("/config/node1","20").toString()); delete ConfigIni;

   这几段代码都是我在Qt Creator里面写的，所以用ui->lineEdit*->text()和ui->lineEdit*->setText()做输入和输出了。