C# Signature:

  [DllImport("credui", EntryPoint="CredUIPromptForCredentialsW", CharSet = CharSet.Unicode)]
  private static extern CredUIReturnCodes CredUIPromptForCredentials(ref CREDUI_INFO creditUR,
            string targetName,
            IntPtr reserved1,
            int iError,
            StringBuilder userName,
            int maxUserName,
            StringBuilder password,
            int maxPassword,
            ref int iSave,
            CREDUI_FLAGS flags);

VB .NET Signature:

Declare Function CredUIPromptForCredentialsW Lib "credui.dll" (TODO) As TODO

User-Defined Types:

CREDUI_FLAGS, CREDUI_INFO, CredUIReturnCodes

Notes:

None.

Tips & Tricks:

Please add some!

Sample Code:

  const int MAX_USER_NAME = 100;
  const int MAX_PASSWORD = 100;
  const int MAX_DOMAIN  = 100;

  public static CredUIReturnCodes PromptForCredentials(
            ref CREDUI_INFO creditUI,
            string targetName,
            int netError,
            ref string userName,
            ref string password,
            ref bool save,
            CREDUI_FLAGS flags)
  {

  int saveCredentials;
  StringBuilder user = new StringBuilder(MAX_USER_NAME);
  StringBuilder pwd = new StringBuilder(MAX_PASSWORD);
  saveCredentials = Convert.ToInt32(save);
  creditUI.cbSize = Marshal.SizeOf(creditUI);

  CredUIReturnCodes result = CredUIPromptForCredentials(
                ref creditUI,
                targetName,
                IntPtr.Zero,
                netError,
                user,
                MAX_USER_NAME,
                pwd,
                MAX_PASSWORD,
                ref saveCredentials,
                flags);

  save = Convert.ToBoolean(saveCredentials);
  userName = user.ToString();
  password = pwd.ToString();

  return result;
  }

  string host = "Database Client";
  CREDUI_INFO info = new CREDUI_INFO();
  info.pszCaptionText = host;  
  info.pszMessageText = "Please Enter Your Enterprise ID";

  CREDUI_FLAGS flags = CREDUI_FLAGS.GENERIC_CREDENTIALS |
        CREDUI_FLAGS.SHOW_SAVE_CHECK_BOX |
        CREDUI_FLAGS.ALWAYS_SHOW_UI |
        CREDUI_FLAGS.EXPECT_CONFIRMATION;

  bool savePwd = false;
  CredUIReturnCodes result = PromptForCredentials(ref info, host, 0, ref username,
                ref password, ref savePwd, flags);

Alternative Managed API:

TODO

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