How do i prevent the user from entering a RETURN/ENTER key into their username?

Question

Hello,
i am currently trying to make a login system where the
username will obviously enter their username.
I have made my user input box editable and set up variables
to accept the user input and store them into variables, along with
error prevention for blank fields.
However i cannot prevent the user from hitting the
"enter"/"return" key. When i hit "enter" the user input box box
gets larger as the type curser moves onto the next line and when
the username is stored in a variable it is stored as "theuser
RETURN" so when variable is passed to the next frame and is
recalled by another text box to display the username, the user name
has a carriage return.
I want to prevent this, anyone got any suggestions? or know
of any websites i can visit which will explain this to me nicely??
Thank you

Answer 1

suggestion:
don't make the edit field editable right from the start.
rather attach a behaviour to the field/text-sprite like:
property mySprite, myMember
on beginsprite me
Sprite = me.spritenum
-- this is the channel-number of the editbox
myMember = mySprite.member.number
-- this is the field/text-member
member(myMember).editable = FALSE
end beginsprite
on mouseup me
-- when i get clicked for editing, then set me editable
member(mymember).editable = TRUE
the keydownscript = "MyKeyhandler"
-- this sets the keyhandler to YOUR keyhandler, see below
end mouseup
You would then need to have YOUR keyhandler in any mociesript
and there you
would block any unwished key, while editing
on MyKeyhandler
case the key of
RETURN:
stopevent;
otherwise
pass;
end case
end MyKeyhandler
in the end you would attach a behaviour to any
"Submit"-button (this is the
one that "gets" the userinput" and performs further action
according to your
wishes and decisions)
on mouseup
the keydownscript = EMPTY
-- this resets to normal
user-ID = member("Whatever the number or name of your
editfield
is").text
member("Whatever the number or name of your editfield
is").editable
= FALSE
-- any further actions to make in your project
-- to get along with the entered User-ID
end mouseup
something like this, I guess
Peter