THE HYPERCARD CENTER

HyperTalk Reference

Note: This is a work in progress and many formatting issues have been fixed. Read more about the project on the home page.

exit

exit repeat

exit functionName

exit messageName

exit to HyperCard

The exit keyword interrupts the current flow of control.

Exit repeat sends control to the end of a repeat structure, ending execution of the loop regardless of the state of the controlling conditions.

The exit functionName and exit messageName forms stop the current message or function handler. Control returns to any pending statements from another handler, if any.

Exit to HyperCard terminates all running or pending handlers and cancels all pending messages.

Using exit to leave a function handler sets the value of the function to empty.

Examples

if N = 0 then exit repeat

if it is empty then exit mySave

if there is no card field "Index" then exit indexFunction

-- In the following example, the openCard message will not occur as the

-- user goes from card to card:

on closeCard

  flash

  exit to HyperCard

end closeCard

on openCard

  beep

end openCard

-- The newButton message will occur because HyperCard sends it before

-- the exit to HyperCard:

on anExample

  doMenu "New Button" -- creates a new button, sends newButton message

  exit to HyperCard

end anExample

on newButton

  beep

end newButton

Demo Script

on exitDemo

  answer "Would you like to see a demo?" with "No" or "Yes"

  if it is "No" then exit exitDemo

  put "Click the mouse to exit this handler…"

  put 1 into lineNum

  put the number of lines in me into totalLines

  set the autoSelect of me to true -- to get a nice solid hilite

  repeat

    if lineNum > totalLines then put 1 into lineNum

    select line lineNum of me

    if the mouseClick then exit repeat

    add 1 to lineNum

  end repeat

  wait 20

  select line 0 of me

  set the autoSelect of me to false

end exitDemo

Placeholders

functionName

Any text string, without quotation marks, that represents the name of the function handler you want to write:

myAverage

onlyOneWindow

As in the HyperTalk examples:

function myAverage theNumbers

function onlyOneWindow

messageName

Any text string, without quotation marks, that represents the name of the message handler you want to write:

calculateDebt

selectWholeLine

As in:

on calculateDebt

on selectWholeLine theLine, aContainer

HyperTalk Reference

Version 0.8b4 (July 4, 2025)