Create a unique system I/O control code (IOCTL)
#include <WinAPIFiles.au3>
_WinAPI_IOCTL ( $iDeviceType, $iFunction, $iMethod, $iAccess )
| $iDeviceType | The type of device. |
| $iFunction | The action within the device category. |
| $iMethod | The method codes for how buffers are passed for I/O and file system controls. |
| $iAccess | The access check value for any access. |