CODEWITHSUNDEEP
c++cregistry
user2623906
user2623906

Reputation:

how to create or query registry with RegOpenKeyEx

I want to write a registry value into 

HKEY_CURRENT_USER\Software\Adobe\Acrobat Reader\11.0\Identity  =>  key = tName , value="user1"

but every time I got "RegOpenKeyEx SOFTWARE\Adobe\Acrobat Reader\11.0\Identity failed (error=2) " as error suggest the Identity key is not present in the registry.

How to create a registry if it is not present. I want to create if the key is not present and open it registry is there. 

lStat = RegOpenKeyEx( HKEY_CURRENT_USER, /*handle of open key */
        szSubKey, /* address of name of subkey to open */
        0, /* reserved */
        KEY_READ , /* security access mask */
        &hKey /* address of handle of open key */
        );   
if ( lStat != ERROR_SUCCESS) {
      sprintf(szMsg,"RegOpenKeyEx %s failed (error=%ld) ",
        szSubKey, lStat);
      traceMsg(szMsg);
      return lStat;
    }

   lStat = RegSetValueEx(hKey,(LPCTSTR)szValue, NULL, &Type, 
            (LPBYTE)szUser, strlen(szUser)+1);

enter image description here

Upvotes: 0

Views: 566

Answers (1)

Kirill Kobelev
Kirill Kobelev

Reputation: 10557

Does this key exist there? MSDN:

Unlike the RegCreateKeyEx function, the RegOpenKeyEx function does not create the specified key if the key does not exist in the registry.

Try regedit first.

Second, you specify KEY_READ and then want to write something.

Upvotes: 1

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