Hi Alex,
It certainly looks like it should be found. It reminds of a security issue where similar looking unicode characters in folder names were used to scam people. Can you hex dump the characters of each entry in your loop? Maybe you have a virus that has done something similar? Or maybe there is an embedded NULL character? Hope that helps, Tony Sent: Tuesday, 1 October 2013 12:02 PM Just want to add that key is found, qDebug() << "child keys = " << reg.childKeys(); result in child keys = ("Common Administrative Tools", "Common AppData", "Common Desktop", "Common Documents", "Common Programs", "Common Start Menu", "Common Startup", "Common Templates", "CommonMusic", "CommonPictures", "CommonVideo", "OEM Links", "Personal") but value returned is empty string - different from visible in regedit Alex On Mon, Sep 30, 2013 at 6:24 PM, Alex Malyushytskyy <alexmal...@gmail.com> wrote: I found a problem with QSettings when trying to read from registry. I am using Qt 4.7.3 so I would appreciate if anybody can check with Qt 5 at least. Problem: QSettings fails to return specific key value (Common AppData) when read other keys at the same level just fine. Key exists and verified with regedit. Test case is below: #include <QApplication> #include <QSettings> #include <QDebug> void ddd2(); int main(int argc, char *argv[]) { // execute test and return QApplication a(argc, argv); ddd2(); return 0; } void ddd2() { QSettings reg("HKEY_LOCAL_MACHINE\\Software\\Microsoft\\Windows\\CurrentVersion\\Explo rer\\Shell Folders", QSettings::NativeFormat); QString key; QString val; key = QString("Common AppData"); val = QString ( reg.value(key).toString()); qDebug() << "key: " << key << " value: " << val; key = QString("Common Desktop"); val = QString ( reg.value(key).toString()); qDebug() << "key: " << key << " value: " << val; key = QString("Common Documents"); val = QString ( reg.value(key).toString()); qDebug() << "key: " << key << " value: " << val; } Output: key: "Common AppData" value: "" key: "Common Desktop" value: "C:\Users\Public\Desktop" key: "Common Documents" value: "C:\Users\Public\Documents" Expected * WinXP: "c:\Documents and Settings\All Users\Application Data" * WinV/7/8: "c:\ProgramData" Regards, Alex
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