Required integer. The number of characters that the user is
allowed to enter into the prompt input field (see Response Length).
default
Optional string. The text to be displayed in the input field
of the popup window. If the user does not type any input into the
input field but just clicks OK, the macro runtime will send this default
input to the session window (see Default Response).
clearfield
Optional boolean. Setting this attribute to true causes the
macro runtime, before sending the input sequence to the session window,
to clear the input field of the session window in which the row and
column location occur (see Handling the input sequence in the session window).
encrypted
Optional boolean. Setting this attribute to true causes the
macro runtime, when the user types a key into the input field of the
window, to display an asterisk (*) instead of the character associated
with the key (see Password Response).