Some constant values are always defined while a macro is running. As with all other identifiers, the constant names are not case sensitive.
|
Constant |
Value |
|
True |
"1" |
|
False |
"0" |
|
Nil |
"" – the empty string. |
|
hNil |
"0" – an invalid handle value. |
|
invalid |
"-1" – an invalid index value. |