儲存使用者名稱和密碼

標頭檔案：WinCred.h

主要是CredRead()和CredWrite()

BOOL CredWrite(
  _In_ PCREDENTIAL Credential,
  _In_ DWORD       Flags
);

BOOL CredRead(
  _In_  LPCTSTR     TargetName,
  _In_  DWORD       Type,
  _In_  DWORD       Flags,
  _Out_ PCREDENTIAL *Credential
);

下面是記錄的例子：

bool SaveAccount(const
 
 std::string& username, const std::string& password) 
{
    char password_chars[255] = { 0 };
    wchar_t username_wstrs[255] = { 0 };
    wchar_t target_name_wstrs[1024] = { 0 };

    // password
    strcpy(password_chars, password.c_str());
    DWORD cbCreds = 1 + strlen(password_chars);

    // username
 

    std::wstring username_wstr = nbase::UTF8ToUTF16(username);
    wcscpy(username_wstrs, username_wstr.c_str());

    // target name
    std::wstring target_name_wstr = L"MyApp";
    wcscpy(target_name_wstrs, target_name_wstr.c_str());

    CREDENTIALW cred = { 0 };
    cred.Type = CRED_TYPE_GENERIC;
    cred.TargetName = target_name_wstrs;
    cred.CredentialBlobSize = cbCreds;
    cred.CredentialBlob = (LPBYTE)password_chars;
    cred.Persist = CRED_PERSIST_LOCAL_MACHINE;
    cred.UserName = username_wstrs;

    return
 
 ::CredWriteW(&cred, 0);
}

bool GetAccount(std::string& username, std::string& password)
{
    wchar_t username_wstrs[255] = { 0 };
    wchar_t target_name_wstrs[1024] = { 0 };

    // target name
    std::wstring target_name_wstr = L"MyApp";

    PCREDENTIALW pcred;

    BOOL success = false;
    do {
        success = ::CredReadW(target_name_wstr.c_str(), CRED_TYPE_GENERIC, 0, &pcred);
        if (!success)
        {
            break;
        }
        username = nbase::UTF16ToUTF8(pcred->UserName);

        std::string pwd((char*)pcred->CredentialBlob, pcred->CredentialBlobSize);
        password = pwd;
        ::CredFree(pcred);
        return true;
    } while (0);

    return false;
}