Determines whether string comparisons are case sensitive (default is "no").
|On|Off||On: String comparisons are case sensitive.
Off: String comparisons are not case sensitive.
ErrorLevel is set to 1 if there was a problem or 0 otherwise.
The command affects the behavior of IfEqual (and its family), IF (expression) (except = and ==), IfInString, StringReplace and StringGetPos.
If this command isn't used in a script, string comparisons are never case sensitive.
The built-in variable A_StringCaseSense contains the current setting (On or Off).
Every newly launched thread (such as a hotkey, custom menu item, or timed subroutine) starts off fresh with the default setting for this command. That default may be changed by using this command in the auto-execute section (top part of the script).
IfEqual, IfInString, if var between, StringReplace, StringGetPos