[Solved] How to convert REG_SZ to String

zolidznake

Hi,

I am trying to get informations from Windows Registry ...for example the windows install date

but every time i get 0

QSettings settings("HKEY_LOCAL_MACHINE\SOFTWARE\Windows NT\CurrentVersion",
QSettings::NativeFormat);

QString sReturnedValue = settings.value("(InstallDate)", "0").toString();

std::cout << sReturnedValue.toStdString() << std::endl;

Any help would be appreciated

hpollak

check if the key
"HKEY_LOCAL_MACHINE\SOFTWARE\Windows NT\CurrentVersion\(InstallDate)" realy exists, your default value ( if not exists ) is 0

on Windows 7 the key Path is:

"HKEY_LOCAL_MACHINE\SOFTWARE\Micrososft\Windows NT\CurrentVersion\"

so i think you foregot Microsoft!

and the value is stored in:

"InstallDate"

zolidznake

it returns 0 but when i am looking in windows registry i have a field InstallDate with value 503de12a

hpollak

I have also InstallDate with the value 0x50...

but under:

"HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\"
(hope mark as bold working!)

and not under

“HKEY_LOCAL_MACHINE\SOFTWARE\Windows NT\CurrentVersion”

so there is no key in your path and 0 is the correct return value!!!

hpollak

Try this code it is working on my computer:

@ QSettings settings("HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion", QSettings::NativeFormat);

QString sReturnedValue = settings.value("InstallDate").toString();
std::cout << sReturnedValue.toStdString() << std::endl;@

zolidznake

if i am using WMI i can get the install date ...but from here.... i can't.

hpollak

have you tried the code snippset?

zolidznake

yes...it works...thank you for your help...

hpollak

please add [solved] to the topic of this thread.