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KSFASTPROPERTY_ITEM structure (ks.h)

  • Artikel

The KSFASTPROPERTY_ITEM structure is used with items for fast I/O dispatching.

Syntax

typedef struct {
  ULONG PropertyId;
  union {
    PFNKSFASTHANDLER GetPropertyHandler;
    BOOLEAN          GetSupported;
  };
  union {
    PFNKSFASTHANDLER SetPropertyHandler;
    BOOLEAN          SetSupported;
  };
  ULONG Reserved;
} KSFASTPROPERTY_ITEM, *PKSFASTPROPERTY_ITEM;

Members

PropertyId

Specifies the identifier of the specific property within the set.

GetPropertyHandler

Points to a driver-supplied KStrFastHandler routine that specifies the fast handler for retrieving the property. If this is NULL, the property cannot be read with a fast handler.

GetSupported

A boolean value that indicates if the driver has supplied a get property handler.

SetPropertyHandler

Points to a driver-supplied KStrFastHandler routine that specifies the fast handler for setting the property. If this is NULL, the property cannot be set with a fast handler.

SetSupported

A boolean value that indicates if the driver has supplied a set property handler.

Reserved

Reserved and set to zero.

Requirements

Requirement Value
Header ks.h (include Ks.h)

See also

KStrFastHandler