DISK_GEOMETRY

The DISK_GEOMETRY structure describes the geometry of disk devices and media.

typedef struct _DISK_GEOMETRY {

LARGE_INTEGER Cylinders;

MEDIA_TYPE MediaType;

DWORD TracksPerCylinder;

DWORD SectorsPerTrack;

DWORD BytesPerSector;

} DISK_GEOMETRY ;

Members

Cylinders

The number of cylinders.

MediaType

The type of media. See MEDIA_TYPE.

TracksPerCylinder

The number of tracks per cylinder.

SectorsPerTrack

The number of sectors per track.

BytesPerSector

The number of bytes per sector

Remarks

The DeviceIoControl function receives a DISK_GEOMETRY structure in response to an IOCTL_DISK_GET_DRIVE_GEOMETRY device input and output contol (IOCTL) operation. The DeviceIoControl function receives an array of DISK_GEOMETRY structures in response to an IOCTL_DISK_GET_MEDIA_TYPES device I/O operation.

See Also

DeviceIoControl, IOCTL_DISK_GET_DRIVE_GEOMETRY, IOCTL_DISK_GET_MEDIA_TYPES, MEDIA_TYPE

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