||THE HYPERCARD CENTER
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keyDown command simulates a key press from within a handler. It acts exactly as if the user pressed a character
from the keyboard.
HyperCard sends the
keyDown command to a field (if the insertion point is set) or to the current card when the user presses a key. The value passed to the parameter variable
char corresponds to the key pressed.
You can handle the
keyDown message as follows:
on keyDown theKey
keyDown is not sent for characters typed using the
-- The keyDown messages are handled in the script of this card
show bkgnd field "demo field"
put "Type any key..." into bkgnd field "demo field"
put "Press the Return key to continue..." into ¬
line 6 of bkgnd field "demo field"
An expression that yields a single character.
Any return-separated list of built-in commands, user-defined handlers, or keywords that are part of a message or function handler.
put "Hello world" -- built-in command
get total(field 1) -- function call
global HelpInfo -- keyword
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(March 24, 2022)
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