WindowsXP-SP1/shell/published/inc/shtypes.idl

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//+-------------------------------------------------------------------------
//
// Microsoft Windows
// Copyright (c) Microsoft Corporation. All rights reserved.
//
// File: shtypes.idl
//
// Contents: This interface definition contains typedefs for remotable
// shell data types.
//
// History: 18-JUN-99 ZekeL - created file
//
//--------------------------------------------------------------------------
cpp_quote("//+-------------------------------------------------------------------------")
cpp_quote("//")
cpp_quote("// Microsoft Windows")
cpp_quote("// Copyright (c) Microsoft Corporation. All rights reserved.")
cpp_quote("//")
cpp_quote("//--------------------------------------------------------------------------")
//
// Import definitions of the base types related to the 64b porting effort.
//
import "wtypes.idl";
cpp_quote("//===========================================================================")
cpp_quote("//")
cpp_quote("// Object identifiers in the explorer's name space (ItemID and IDList)")
cpp_quote("//")
cpp_quote("// All the items that the user can browse with the explorer (such as files,")
cpp_quote("// directories, servers, work-groups, etc.) has an identifier which is unique")
cpp_quote("// among items within the parent folder. Those identifiers are called item")
cpp_quote("// IDs (SHITEMID). Since all its parent folders have their own item IDs,")
cpp_quote("// any items can be uniquely identified by a list of item IDs, which is called")
cpp_quote("// an ID list (ITEMIDLIST).")
cpp_quote("//")
cpp_quote("// ID lists are almost always allocated by the task allocator (see some")
cpp_quote("// description below as well as OLE 2.0 SDK) and may be passed across")
cpp_quote("// some of shell interfaces (such as IShellFolder). Each item ID in an ID list")
cpp_quote("// is only meaningful to its parent folder (which has generated it), and all")
cpp_quote("// the clients must treat it as an opaque binary data except the first two")
cpp_quote("// bytes, which indicates the size of the item ID.")
cpp_quote("//")
cpp_quote("// When a shell extension -- which implements the IShellFolder interace --")
cpp_quote("// generates an item ID, it may put any information in it, not only the data")
cpp_quote("// with that it needs to identifies the item, but also some additional")
cpp_quote("// information, which would help implementing some other functions efficiently.")
cpp_quote("// For example, the shell's IShellFolder implementation of file system items")
cpp_quote("// stores the primary (long) name of a file or a directory as the item")
cpp_quote("// identifier, but it also stores its alternative (short) name, size and date")
cpp_quote("// etc.")
cpp_quote("//")
cpp_quote("// When an ID list is passed to one of shell APIs (such as SHGetPathFromIDList),")
cpp_quote("// it is always an absolute path -- relative from the root of the name space,")
cpp_quote("// which is the desktop folder. When an ID list is passed to one of IShellFolder")
cpp_quote("// member function, it is always a relative path from the folder (unless it")
cpp_quote("// is explicitly specified).")
cpp_quote("//")
cpp_quote("//===========================================================================")
cpp_quote("//")
cpp_quote("// SHITEMID -- Item ID (mkid)")
cpp_quote("// USHORT cb; // Size of the ID (including cb itself)")
cpp_quote("// BYTE abID[]; // The item ID (variable length)")
cpp_quote("//")
cpp_quote("#include <pshpack1.h>")
typedef struct _SHITEMID
{
USHORT cb;
BYTE abID[];
} SHITEMID;
cpp_quote("#include <poppack.h>")
cpp_quote("#if defined(_M_IX86)")
cpp_quote("#define __unaligned")
cpp_quote("#endif // __unaligned")
// WARNING: SHITEMID's have no marshalling support
typedef SHITEMID __unaligned *LPSHITEMID;
typedef const SHITEMID __unaligned *LPCSHITEMID;
cpp_quote("//")
cpp_quote("// ITEMIDLIST -- List if item IDs (combined with 0-terminator)")
cpp_quote("//")
cpp_quote("#include <pshpack1.h>")
typedef struct _ITEMIDLIST // idl
{
SHITEMID mkid;
} ITEMIDLIST;
cpp_quote("#include <poppack.h>")
typedef [unique] BYTE_BLOB * wirePIDL;
typedef [wire_marshal(wirePIDL)] ITEMIDLIST __unaligned * LPITEMIDLIST;
typedef [wire_marshal(wirePIDL)] const ITEMIDLIST __unaligned * LPCITEMIDLIST;
#ifndef MAX_PATH
#define MAX_PATH 260
#endif
// make midl see a def of this stuct, but when the marshallers are built
// the defs of these get pulled from winbase.h
typedef struct _WINBASE_DEFINED_STRUCT { int dummy; } WINBASE_DEFINED_STRUCT ;
#define WINBASE_DEFINED_MIDL
cpp_quote("#ifdef WINBASE_DEFINED_MIDL")
typedef WINBASE_DEFINED_STRUCT WIN32_FIND_DATAA;
typedef WINBASE_DEFINED_STRUCT WIN32_FIND_DATAW;
cpp_quote("#endif // WINBASE_DEFINED_MIDL")
cpp_quote("//-------------------------------------------------------------------------")
cpp_quote("//")
cpp_quote("// struct STRRET")
cpp_quote("//")
cpp_quote("// structure for returning strings from IShellFolder member functions")
cpp_quote("//")
cpp_quote("//-------------------------------------------------------------------------")
cpp_quote("//")
cpp_quote("// uType indicate which union member to use ")
cpp_quote("// STRRET_WSTR Use STRRET.pOleStr must be freed by caller of GetDisplayNameOf")
cpp_quote("// STRRET_OFFSET Use STRRET.uOffset Offset into SHITEMID for ANSI string ")
cpp_quote("// STRRET_CSTR Use STRRET.cStr ANSI Buffer")
cpp_quote("//")
typedef [v1_enum] enum tagSTRRET_TYPE{
STRRET_WSTR = 0x0000, // Use STRRET.pOleStr
STRRET_OFFSET = 0x0001, // Use STRRET.uOffset to Ansi
STRRET_CSTR = 0x0002, // Use STRRET.cStr
} STRRET_TYPE;
cpp_quote("#include <pshpack8.h>")
typedef struct _STRRET
{
UINT uType;
[switch_type(UINT), switch_is(uType)] union
{
[case(STRRET_WSTR)][string] LPWSTR pOleStr;
[case(STRRET_OFFSET)] UINT uOffset;
[case(STRRET_CSTR)] char cStr[MAX_PATH];
} DUMMYUNIONNAME;
} STRRET;
cpp_quote("#include <poppack.h>")
typedef STRRET *LPSTRRET;
cpp_quote("//-------------------------------------------------------------------------")
cpp_quote("//")
cpp_quote("// struct SHELLDETAILS")
cpp_quote("//")
cpp_quote("// structure for returning strings from IShellDetails")
cpp_quote("//")
cpp_quote("//-------------------------------------------------------------------------")
cpp_quote("//")
cpp_quote("// fmt; // LVCFMT_* value (header only)")
cpp_quote("// cxChar; // Number of 'average' characters (header only)")
cpp_quote("// str; // String information")
cpp_quote("//")
cpp_quote("#include <pshpack1.h>")
typedef struct _SHELLDETAILS
{
int fmt; // LVCFMT_* value (header only)
int cxChar; // Number of "average" characters (header only)
STRRET str; // String information
} SHELLDETAILS, *LPSHELLDETAILS;
cpp_quote("#include <poppack.h>")