QT 读取和写入注册表

#include 

        #define RUN_KEY "HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\windows\\CurrentVersion\\run"
        QSettings *pReg = new QSettings(RUN_KEY, QSettings::NativeFormat);
        
	pReg->setValue("key", "value"); //设置注册表值

        QVariant v = pReg->value("key"); //读取注册表值
        v.toString();
        delete reg;