Source code of Windows XP (NT5)
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/*++
Copyright (c) 1998 Microsoft Corporation
Module Name:
propid.h
Abstract:
This module contains the definition of the property ID related types and values
Author:
Keith Lau (keithlau@microsoft.com)
Revision History:
keithlau 03/03/98 created
--*/
#ifndef _PROPID_H_
#define _PROPID_H_
// Define a type for the property ID, we don't want to lock in to
// a specific data type
typedef DWORD PROP_ID;
// Define a bunch of values pertaining to the PROP ID type
#define MAX_PROP_ID ((PROP_ID)-1)
#define FIRST_AVAILABLE_PROP_ID ((PROP_ID)1)
#define UNDEFINED_PROP_ID ((PROP_ID)0)
//
// Prop ID 0 is reserved for many things ...
//
#define PROP_ID_RESERVED ((PROP_ID)0)
#define PROP_ID_DELETED ((PROP_ID)0)
#define PROP_ID_NOT_FOUND ((PROP_ID)0)
//
// Define a structure for PROP ID management
//
typedef struct _PROP_ID_MANAGEMENT_ITEM{ GUID idRange; // GUID identifying the range of PROP IDs
PROP_ID idStartId; // PROP ID of first ID in the managed range
DWORD dwLength; // Number of contiguous PROP IDs in this range
} PROP_ID_MANAGEMENT_ITEM, *LPPROP_ID_MANAGEMENT_ITEM;
#endif
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