/// <summary>
/// Returns a DialogResult from the specified code.
/// </summary>
/// <param name="code">The credential return code.</param>
private DialogResult GetDialogResult(NativeCredentialsUI.ReturnCodes code)
{
DialogResult result;
switch (code)
{
case NativeCredentialsUI.ReturnCodes.NO_ERROR:
result = DialogResult.OK;
break;
case NativeCredentialsUI.ReturnCodes.ERROR_CANCELLED:
result = DialogResult.Cancel;
break;
case NativeCredentialsUI.ReturnCodes.ERROR_NO_SUCH_LOGON_SESSION:
throw new ApplicationException("No such logon session.");
case NativeCredentialsUI.ReturnCodes.ERROR_NOT_FOUND:
throw new ApplicationException("Not found.");
case NativeCredentialsUI.ReturnCodes.ERROR_INVALID_ACCOUNT_NAME:
throw new ApplicationException("Invalid account name.");
case NativeCredentialsUI.ReturnCodes.ERROR_INSUFFICIENT_BUFFER:
throw new ApplicationException("Insufficient buffer.");
case NativeCredentialsUI.ReturnCodes.ERROR_INVALID_PARAMETER:
throw new ApplicationException("Invalid parameter.");
case NativeCredentialsUI.ReturnCodes.ERROR_INVALID_FLAGS:
throw new ApplicationException("Invalid flags.");
default:
throw new ApplicationException("Unknown credential result encountered.");
}
return(result);
}
/// <summary>
/// Returns a DialogResult indicating the user action.
/// </summary>
/// <param name="owner">The System.Windows.Forms.IWin32Window the dialog will display in front of.</param>
/// <remarks>
/// Sets the name, password and SaveChecked accessors to the state of the dialog as it was dismissed by the user.
/// </remarks>
private DialogResult ShowDialog(IWin32Window owner)
{
// set the api call parameters
StringBuilder name = new StringBuilder(NativeCredentialsUI.MAX_USERNAME_LENGTH);
name.Append(this.Name);
StringBuilder password = new StringBuilder(NativeCredentialsUI.MAX_PASSWORD_LENGTH);
int saveChecked = Convert.ToInt32(this.SaveChecked);
NativeCredentialsUI.INFO info = GetInfo(owner);
NativeCredentialsUI.FLAGS flags = GetFlags();
// make the api call
NativeCredentialsUI.ReturnCodes code = NativeCredentialsUI.PromptForCredentials(
ref info,
this.Target,
IntPtr.Zero, 0,
name, NativeCredentialsUI.MAX_USERNAME_LENGTH,
password, NativeCredentialsUI.MAX_PASSWORD_LENGTH,
ref saveChecked,
flags
);
// set the accessors from the api call parameters
this.Name = name.ToString();
foreach (char c in password.ToString())
{
this.Password.AppendChar(c);
}
this.Password.MakeReadOnly();
this.SaveChecked = Convert.ToBoolean(saveChecked);
return(GetDialogResult(code));
}
