FInding the hard disk storage capacity programmatically

How do I find out the storage capa开发者_如何转开发city of my harddisk without using the OS functions like dir or ls?

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On windows:

Win32: GetDiskFreeSpaceEx

.NET: DriveInfo

If, for whatever reason, you still don't want to use those, you can send an IOCTL message direct to the disk driver.

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statfs() unix system call is your friend (link points to BSD man page as used in Mac OS X).