API Reference GamepadUITestsVCL Gamolf.RTL.Joystick.DirectInput.Win TGamolfJoystickDirectInputJoyCaps TGamolfJoystickDirectInputJoyCaps.ZMiddle Field On this page Definition Definition Unit: Gamolf.RTL.Joystick.DirectInput.Win Package: GamepadUITestsVCL Delphi Copy var ZMiddle: single Value Single