PressDurationĬertain games and other specialized applications may require a delay inside each keystroke that is, after the press of the key but before its release. Specify -1 for no delay at all or 0 for the smallest possible delay (however, if the Play parameter is present, both 0 and -1 produce no delay). Otherwise, specify the time in milliseconds, which can be an expression. If blank or omitted, the current delay is retained. SetKeyDelay, Delay, PressDuration, Play Parameters Delay Sets the delay that will occur after each keystroke sent by Send or ControlSend. SetKeyDelay - Syntax & Usage | AutoHotkey SetKeyDelay