Command line registry viewer (Win32 C++)

[Hunter13]

Hi, I need help with programming simple console registry viewer in c++. Im trying to get all keys, but no all subkeys as RegOpenKeyEx KEY_ENUMERATE_SUB_KEYS can. I dont want get out as

Code: Select all

Software
  Microsoft
    Current version
Security
   etc
Sam

but i need to get just
Sofware
Security
Sam
+values

Can anybody help me make this function, which will fast read registry as DIR in cmd?

[Hunter13]

Code: Select all

#include <windows.h>
#include <stdio.h>

void main()
{
    char lszValue[100];


    LONG lRet, lEnumRet;
    HKEY hKey;
    DWORD dwLength=100;
    int i=0;

    lRet = RegOpenKeyEx(HKEY_LOCAL_MACHINE, "SOFTWARE\\ADOBE", 0, KEY_READ , &hKey);
    printf("HKEY_LOCAL_MACHINE\\SOFTWARE\\ADOBE\n\n");

   if(lRet == ERROR_SUCCESS)
    {
         lEnumRet = RegEnumKey(hKey, i,lszValue,dwLength);
         while(lEnumRet == ERROR_SUCCESS)
         {
              i++;
              printf ("[%s]\n",lszValue);
              lEnumRet = RegEnumKey(hKey, i,lszValue,dwLength);
         }
    }
}

soo easy

[ark]

Yeah, the above code is pretty much what you want to do, except that Platform SDK docs indicate that RegEnumKey exists for 16-bit compatibility, so you should really use RegEnumKeyEx, as in:

Code: Select all

#include <iostream>
#include <windows.h>


int main()
{
    const int KeyNameBufferSize = 256;

    LONG     result = ERROR_SUCCESS;
    TCHAR    keyName[KeyNameBufferSize];
    DWORD    index  = 0;
    DWORD    nameLength = KeyNameBufferSize;
    FILETIME lastWriteTime;

    std::cout << "Enumerating HKEY_LOCAL_MACHINE" << std::endl;

    while (result == ERROR_SUCCESS)
    {
        nameLength = KeyNameBufferSize;

        result = ::RegEnumKeyEx(HKEY_LOCAL_MACHINE, index, keyName,
            &nameLength, 0, NULL, NULL, &lastWriteTime);

        if (result == ERROR_SUCCESS)
        {
            std::cout << keyName << std::endl;
        }

        index++;
    }

    std::cout << "Done enumerating keys" << std::endl;

    return 0;
}

(replace cout with printf as desired if not coding in C++).