WRITE_CACHE_CHANGE enumeration (winioctl.h)

Indicates whether the write cache features of a device are changeable.

Syntax

typedef enum _WRITE_CACHE_CHANGE {
  WriteCacheChangeUnknown,
  WriteCacheNotChangeable,
  WriteCacheChangeable
} WRITE_CACHE_CHANGE;

Constants

WriteCacheChangeUnknown The system cannot report the write cache change capability of the device.
WriteCacheNotChangeable Host software cannot change the characteristics of the device's write cache.
WriteCacheChangeable Host software can change the characteristics of the device's write cache.

Remarks

The IOCTL_STORAGE_QUERY_PROPERTY request returns a WRITE_CACHE_CHANGE value in the STORAGE_WRITE_CACHE_PROPERTY structure.

Requirements

Requirement	Value
Minimum supported client	Windows Vista [desktop apps only]
Minimum supported server	Windows Server 2008 [desktop apps only]
Header	winioctl.h

See also

• Disk Management Enumeration Types
• IOCTL_STORAGE_QUERY_PROPERTY
• STORAGE_WRITE_CACHE_PROPERTY