Hi I am able to open the registry path i.e "Software\Mozilla\Mozilla Firefox" in RegOpenKeyEx.but i am trying to fetching "CurrentVersion" using RegQueryValueEx().But i am not getting the curent version.can u pls send me some code example.
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313answers:
1
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A:
This works for me:
// Open the key
HKEY hKey;
if( SUCCEEDED(::RegOpenKey( HKEY_LOCAL_MACHINE, TEXT("SOFTWARE\\Mozilla\\Mozilla Firefox"), &hKey )) )
{
// Query the required buffer size for the requested value
DWORD cbData;
if( SUCCEEDED(::RegQueryValueEx( hKey, TEXT("CurrentVersion"), NULL, NULL, NULL, &cbData )) )
{
// Now that we have the size, allocate a buffer and query the value
TCHAR* buf = new TCHAR[cbData/sizeof(TCHAR)];
if( SUCCEEDED(::RegQueryValueEx( hKey, TEXT("CurrentVersion"), NULL, NULL, (LPBYTE)buf, &cbData )) )
{
::OutputDebugString( buf );
}
}
}
Timbo
2009-08-07 07:47:07
The Reg functions don't return an HRESULT, so SUCCEEDED isn't the most apporpriate macro. But the LONG result they return is compatible.
selbie
2009-08-08 08:56:05