Qt访问Windows注册表

需要#include

只举几个简单的例子：

1、用QSettings写注册表

view plaincopy to clipboardprint?

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

view plaincopy to clipboardprint?

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;

还可以toInt(),toString()等。