TextField interface description.

textField initialString

create a Textfield for editing a one-line string, initialString. The keybindings for moving the insertion point around and deleting text are a small subset of the default Emacs bindings.

mkTextField toPicture initialString

create a Textfield just like textField, but use toPicture to convert the current string into a Picture before displaying it. One use of this function is PasswordField which displays dots instead of the password string typed in.

getString tField

returns the string currently contained in the TextField.

waitString tField

return the TextField's string the next the user hits a terminating character. Currently, only Return and Enter are recognised as terminators.

waitString tField

wait until the next character is inserted in or deleted from the TextField.

setString tField myString

replace the string in the TextField with myString, positioning the cursor at the end of the new string.

clearField tField

empty the contents of a TextField.

disableField tField

enableField tField

toggle the interaction status for the TextField. A disabled field becomes greyed out and interaction is not possible with it.