Copy External I/O Controls

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4/8/2010

The following table shows the copy external I/O controls.

I/O Control	Description
FSCTL_COPY_EXTERNAL_COMPLETE	Called by the application to notify the operating system that the transfer is complete.
FSCTL_COPY_EXTERNAL_START	Called by the application to copy from or to an external device.
IOCTL_DISK_COPY_EXTERNAL_COMPLETE	Called by the file system to inform the block driver that the transfer is complete.
IOCTL_DISK_COPY_EXTERNAL_START	Called by the file system to inform the block driver which sectors correspond to a file. This allows data to be read from or written to a file directly on an external device.

See Also