How to check BIOS hard disk password status using Win32 API?

Some hard disks support password protection on boot up. Is there a Win32 API that we can call to check for the hard disk password status?

The class: Win32_ComputerSystem doesn't seem to have a field on t开发者_运维技巧his.

Thanks.

http://sourceforge.net/tracker/?func=detail&aid=1668007&group_id=136732&atid=736684

It supports XP SP2 and 2003 if driver implements ATA_PASS_THROUGH. It also supports 2000 and XP SP1 if undocumented IDE_PASS_THROUGH is available.

MSDN documents ATA_PASS_THROUGH (call DeviceIoControl).