Registry reading and writing

[Robertus]

How do I use CRegKey so that I could create multiple levels of keys and subkeys, in registry?
I would like something like this:

HKEY_LOCAL_MACHINE
- Robertus(key)
-About(subkey of Robertus)
-Age xx (int value)
-Height zz (int value)
-Marital Status: "vv" (string value)
-Skills(subkey of Robertus)
- AAA(subkey of Skills)
- BBB (subkey of AAA)
- field1 87 (long value)
- field2 67 (long value)

And then how should I get the value that "hides" under BBB - field1, for example?
(I would like a piece of code if possible, please)

Thanks a lot, even if you answer me or not!

 

[TGM]

Hi

To access

HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer\Main

pass the strKey = "Software\\Microsoft\\Internet Explorer\\Main" to the function GetRegistryKey or SetRegistryKey.
Here the first parameter of RegOpenKeyEx is hard-coded but you can also pass it as a parameter of a modified version of the proposed GetRegistryKey function

HTH
Thierry
EMail: Thierry.Marneffe@swing.be


CString CFoo::GetRegistryKey( CString strKey, CString strName)
{

CString str;
HKEY hKey; // Handle to Registry Key

// Open the Key in the Registry

long lResult = RegOpenKeyEx( HKEY_CURRENT_USER, strKey, 0, KEY_ALL_ACCESS, &hKey);

// Check for Error

if ( lResult == ERROR_SUCCESS)
{
char szBuffer[100];
DWORD dwBufferSize = 100;
DWORD dwType;

long lQueryResult =
RegQueryValueEx( hKey, strName, 0, &dwType, (LPBYTE) szBuffer, &dwBufferSize);

// Store Data ( if available)

if ( lQueryResult == ERROR_SUCCESS)
str = CString( szBuffer, ( int) dwBufferSize);
}
CloseHandle( hKey);

return str;
}

void CFoo::SetRegistryKey( CString strKey, CString strName, CString strNewValue)
{

HKEY hKey; // Handle to Registry Key

// Open the Key in the Registry

long lResult = RegOpenKeyEx( HKEY_CURRENT_USER, strKey, 0,
KEY_ALL_ACCESS, &hKey);

// Check for Error

if ( lResult == ERROR_SUCCESS)
{
char szBuffer[100];
DWORD dwBufferSize = 100;

// Set New Value
strnset( szBuffer, '\0', 100);
strcpy( szBuffer, strNewValue);

RegSetValueEx( hKey, strName, 0, REG_EXPAND_SZ,
( LPBYTE) szBuffer, strlen( szBuffer) + 1);
}
CloseHandle( hKey);
}