按名称问题获取卸载应用程序路径

Question

我希望通过注册表中的应用程序名称获取应用程序卸载路径。

代码：

QString Test::getAppUninstallPath(QString name)
{
    QString uninstallLocation;
    QStringList allCurrentUserKeys;
    QSettings registryKeyCurrentUser("HKEY_CURRENT_USER\\SOFTWARE\\Microsoft\\Windows\\CurrentVersion\\Uninstall", QSettings::NativeFormat);
    allCurrentUserKeys = registryKeyCurrentUser.allKeys();

    for (QString key : allCurrentUserKeys) {
        if (key.contains("DisplayName")) {
            if (registryKeyCurrentUser.value(key).toString() == name) {
                uninstallLocation = registryKeyCurrentUser.value("UninstallString").toString();
            }
        }
    }

    return uninstallLocation;
}

它什么都不返回。如何获取应用程序的卸载路径？感谢。

Answer 1

感谢 hskoglund 。因为我处理的是层次结构/嵌套键，所以我应该使用beginGroup() / endGroup()。

<强>代码：

    QString uninstallLocation;
    QSettings registryKeyLM("HKEY_CURRENT_USER\\SOFTWARE\\Microsoft\\Windows\\CurrentVersion\\Uninstall", QSettings::NativeFormat);

    auto allGroups = registryKeyLM.childGroups();
    for (auto group : allGroups)
    {
        registryKeyLM.beginGroup(group);

        for (auto key : registryKeyLM.childKeys())
            if ("DisplayName" == key)
                if (registryKeyLM.value(key) == name)
                    uninstallLocation = registryKeyLM.value("UninstallString").toString();

        registryKeyLM.endGroup();
    }

    return uninstallLocation;