Detect press of control keyes

[startup]

Hi folks
is ther a way to detect if the pressed key was left control or right control ??
I need to detect which one is presd
can i ??
Any idia ??

[startup]

i found it

if System.IsKeyDown(160) then

[startup]

OK
NOW HOW CAN I USE VAR INSTATE OF 160
I WILL MAKE AN OPTION THAT ALLOW THE USER TO SELECT THE BUTTON HIMSELF

CAN I USE VARIABLES IN (System.IsKeyDown) ???

[startup]

ok
yes i can

the error was mistyping in my code
all resolved