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並前往https://microsoft.public.development.device.drivers.narkive.com/muxzJ7KH/ioctl-usbprint-vendor-set-command

IOCTL_USBPRINT_VENDOR_S...

#define IOCTL_USBPRINT_GET_LPT_STATUS CTL_CODE(FILE_DEVICE_UNKNOWN, \ USBPRINT_IOCTL_INDEX+12,\ METHOD_BUFFERED, \ FILE_ANY_ACCESS)

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查詢 「FILE_DEVICE_UNKNOWN」的人也找了：

  1. Pdevice_object
    2.
  2. PDRIVER_OBJECT
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  3. File_removable_media
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  4. CTL_CODE
    5.
  5. IOCTL code
    6.
  6. Io control code
    7.
  7. IoCreateDevice
    8.
  8. IRP_MJ_DEVICE_CONTROL
    9.