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#define INCL_DOSDEVIOCTL
 
typedef struct _DEVICEPARAMETERBLOCK {    /* dvpblck */
    USHORT reserved1;
    USHORT cCylinders;
    USHORT cHeads;
    USHORT cSectorsPerTrack;
    USHORT reserved2;
    USHORT reserved3;
    USHORT reserved4;
    USHORT reserved5;
} DEVICEPARAMETERBLOCK;
 
The DEVICEPARAMETERBLOCK structure contains device parameters for the
physical disk.
 
Field                Description
────────────────────────────────────────────────────────────────────────────
 
reserved1            Specifies a reserved value; must be zero.
 
cCylinders           Specifies the number of cylinders on the physical
                     device.
 
cHeads               Specifies the number of heads on the physical device.
 
cSectorsPerTrack     Specifies the number of sectors per track on the
                     physical device.
 
reserved2-reserved5  Specifies a reserved value; must be zero.
 
See Also
 
PDSK_GETPHYSDEVICEPARAMS
 
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