QT not recognizing win32 methods

[Kewal]

I am using functions like readregistryvalue from windows.h
I wanted to know if this is the way it has to be done in Qt too, and I tried including windows.h but I am not able to do that anyideas as to how to include it .
by the way i am using visual studio addin and my workspace is linked with 4.8.0 qt library

[AcerExtensa]

You can use QSettings instead of windows registry functions...
And by the way, if you use VS, you can use full power of windows SDK, just ensure what all paths & libs are set in the VS Project Properties...

I don't really understand why you can't include windows.h? What does compiler says about that?

[goetz]

This usually works without any problems and is used internally in Qt too. What is your error?

[Kewal]

actually, I am having an error which says _T identifier not found, I am trying to convert from char * to LPCWSTR and tried including windows.h
apart from that i incuded QString::toUtf8 to achieve from QString to QByteArray and that is also not actually working.

I am pretty sure its getting included because it should have thrown me an error which would be like header file not found, that is not the case here,.

[stima_ua]

If you use RegGetValue from winapi, you need add library Advapi32.lib see "msdn":http://msdn.microsoft.com/en-us/library/windows/desktop/ms724868(v=vs.85).aspx

p.s. some my code:
@
QString value(const QString &subKey)
{
TCHAR buff[1024] = {0};
DWORD dwSize = sizeof(buff);

lError = RegQueryValueEx(hHandle, subKey.utf16(), NULL, NULL, (BYTE*)buff, &dwSize);

return QString::fromUtf16(reinterpret_cast<ushort*>(buff));

}
@

[AcerExtensa]

Have you set Character Set Project Properties?
VS Project Property Page -> General -> Character Set.
&
Vs Property Page -> C/c++ -> Language -> Treat WChar_t As Built in Type should be No.