https://github.com/jrincayc/ucblogo-code
Tip revision: 007bb0ba3f02a27ba0b6dbe4ca6a5222bf8110f0 authored by Joshua Cogliati on 17 January 2023, 03:00:41 UTC
Merge pull request #146 from jrincayc/release_623_changes
Merge pull request #146 from jrincayc/release_623_changes
Tip revision: 007bb0b
keyact
KEYACT (variable)
if nonempty, should be an instruction list that will be evaluated
whenever a key is pressed on the keyboard. The instruction list
can use READCHAR to find out what key was pressed. Note that only
keys that produce characters qualify; pressing SHIFT or CONTROL
alone will not cause KEYACT to be evaluated.
Note that it's possible for the user to press a key during the
evaluation of the instruction list. If this would confuse your
program, prevent it by temporarily setting KEYACT to the empty
list. One easy way to do that is the following:
make "keyact [key.action]
to key.action [:keyact []]
... ; whatever you want the key to do
end