Remote Registrys

Hi,

I'm develping in Code::Blocks and wxWidgets (if that matters!)

What I want to know is, how can I read values from another machine's registry (I'm logged on as a domain user which is a member of the local admins on the machine in question).

I don't (at this stage anyway!) want to make any changes.

Ideas, anyone?

Grateful thanks for reading this and (hopefully) responding.

Paul

Example of reading registry string (REG_SZ)

Code:

---

#pragma comment( lib, "advapi32.lib" )
#include <windows.h>
#include <stdlib.h>
#include <stdio.h>

BOOL ReadRegistryString(HKEY hKey, LPCTSTR szValueName, LPTSTR * lpszReturnValue)
{
        DWORD dwType = 0, dwDataSize = 0, dwBufferSize = 0;
        if(RegQueryValueEx(hKey, szValueName, 0, &dwType, NULL, &dwDataSize ) != ERROR_SUCCESS) return  FALSE;
        else if (dwType != REG_SZ) return FALSE;
        dwBufferSize = dwDataSize + (1 * sizeof(CHAR));
        if((*lpszReturnValue = (LPTSTR) malloc(dwBufferSize)) == NULL)
                return FALSE;
        if( RegQueryValueEx(hKey, szValueName, 0, &dwType, (LPBYTE) *lpszReturnValue, &dwDataSize ) != ERROR_SUCCESS)
        {
                free(*lpszReturnValue);
                return FALSE;
        }
        else if (dwType != REG_SZ)
        {
                free(*lpszReturnValue);
                return FALSE;
        }
        (*lpszReturnValue)[(dwBufferSize / sizeof(CHAR)) - 1] = '\0';
        return TRUE;
}

INT main(void)
{
        HKEY hKey = NULL;
        HKEY hKeyRemote = NULL;
        LPTSTR szReturnValue;
        CHAR szComputerName[] = {"\\\\myPC"};

        if(RegConnectRegistry(szComputerName, HKEY_LOCAL_MACHINE, &hKeyRemote) == ERROR_SUCCESS)
        {
                if(RegOpenKeyEx(hKeyRemote, "SOFTWARE\\Microsoft\\Windows\\CurrentVersion", 0, KEY_QUERY_VALUE, &hKey) == ERROR_SUCCESS)
                {
                        if( ReadRegistryString(hKey,"ProgramFilesDir", &szReturnValue) == TRUE)
                        {
                                printf("The returned value is %s\n", szReturnValue);
                                RegCloseKey(hKey);
                        }
                        else printf("ReadRegistryString failed\n");
                }
                RegCloseKey(hKeyRemote);
        }
        else printf("RegConnectRegistry failed\n");
        return 0;
}

---

Many thanks :-)