dlls/shell32/pidl.h

   1 /*
   2  * internal pidl functions
   3  *
   4  * Copyright 1998 Juergen Schmied
   5  * Copyright 2004 Juan Lang
   6  *
   7  * This library is free software; you can redistribute it and/or
   8  * modify it under the terms of the GNU Lesser General Public
   9  * License as published by the Free Software Foundation; either
  10  * version 2.1 of the License, or (at your option) any later version.
  11  *
  12  * This library is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  15  * Lesser General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU Lesser General Public
  18  * License along with this library; if not, write to the Free Software
  19  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  20  *
  21  * NOTES:
  22  *
  23  * DO NOT use this definitions outside the shell32.dll !
  24  *
  25  * The contents of a pidl should never used from a application
  26  * directly.
  27  *
  28  * Undocumented:
  29  * MS says: the abID of SHITEMID should be treated as binary data and not
  30  * be interpreted by applications. Applies to everyone but MS itself.
  31  * Word95 interprets the contents of abID (Filesize/Date) so we have to go
  32  * for binary compatibility here.
  33  */
  34
  35 #ifndef __WINE_PIDL_H
  36 #define __WINE_PIDL_H
  37
  38 #include <stdarg.h>
  39
  40 #include "windef.h"
  41 #include "winbase.h"
  42 #include "winuser.h"
  43 #include "shlobj.h"
  44
  45 /*
  46 * the pidl does cache fileattributes to speed up SHGetAttributes when
  47 * displaying a big number of files.
  48 *
  49 * a pidl of NULL means the desktop
  50 *
  51 * The structure of the pidl seems to be a union. The first byte of the
  52 * PIDLDATA desribes the type of pidl.
  53 *
  54 *       object        ! first byte /  ! format       ! living space
  55 *                     ! size
  56 *       ----------------------------------------------------------------
  57 *       my computer     0x1F/20         guid (2)        (usual)
  58 *       network         0x1F            guid
  59 *       bitbucket       0x1F            guid
  60 *       drive           0x23/25         drive           (usual)
  61 *       drive           0x25/25         drive           (lnk/persistent)
  62 *       drive           0x29/25         drive
  63 *       shell extension 0x2E            guid
  64 *       drive           0x2F            drive           (lnk/persistent)
  65 *       folder/file     0x30            folder/file (1) (lnk/persistent)
  66 *       folder          0x31            folder          (usual)
  67 *       valueA          0x32            file            (ANSI file name)
  68 *       valueW          0x34            file            (Unicode file name)
  69 *       workgroup       0x41            network (3)
  70 *       computer        0x42            network (4)
  71 *       net provider    0x46            network
  72 *       whole network   0x47            network (5)
  73 *       MSITStore       0x61            htmlhlp (7)
  74 *       printers/ras connections        0x70            guid
  75 *       history/favorites 0xb1          file
  76 *       share           0xc3            network (6)
  77 *
  78 * guess: the persistent elements are non tracking
  79 *
  80 * (1) dummy byte is used, attributes are empty
  81 * (2) IID_MyComputer = 20D04FE0L-3AEA-1069-A2D8-08002B30309D
  82 * (3) two strings       "workgroup" "Microsoft Network"
  83 * (4) two strings       "\\sirius" "Microsoft Network"
  84 * (5) one string        "Entire Network"
  85 * (6) two strings       "\\sirius\c" "Microsoft Network"
  86 * (7) contains string   "mk:@MSITStore:C:\path\file.chm::/path/filename.htm"
  87 *               GUID    871C5380-42A0-1069-A2EA-08002B30309D
  88 */
  89
  90 #define PT_CPLAPPLET    0x00
  91 #define PT_GUID         0x1F
  92 #define PT_DRIVE        0x23
  93 #define PT_DRIVE2       0x25
  94 #define PT_DRIVE3       0x29
  95 #define PT_SHELLEXT     0x2E
  96 #define PT_DRIVE1       0x2F
  97 #define PT_FOLDER1      0x30
  98 #define PT_FOLDER       0x31
  99 #define PT_VALUE        0x32
 100 #define PT_VALUEW       0x34
 101 #define PT_WORKGRP      0x41
 102 #define PT_COMP         0x42
 103 #define PT_NETPROVIDER  0x46
 104 #define PT_NETWORK      0x47
 105 #define PT_IESPECIAL1   0x61
 106 #define PT_YAGUID       0x70 /* yet another guid.. */
 107 #define PT_IESPECIAL2   0xb1
 108 #define PT_SHARE        0xc3
 109
 110 #include "pshpack1.h"
 111 typedef BYTE PIDLTYPE;
 112
 113 typedef struct tagPIDLCPanelStruct
 114 {
 115     BYTE dummy;                 /*01 is 0x00 */
 116     DWORD iconIdx;              /*02 negative icon ID */
 117     WORD offsDispName;          /*06*/
 118     WORD offsComment;           /*08*/
 119     CHAR szName[1];             /*10*/ /* terminated by 0x00, followed by display name and comment string */
 120 } PIDLCPanelStruct;
 121
 122 typedef struct tagGUIDStruct
 123 {
 124     BYTE dummy; /* offset 01 is unknown */
 125     GUID guid;  /* offset 02 */
 126 } GUIDStruct;
 127
 128 typedef struct tagDriveStruct
 129 {
 130     CHAR szDriveName[20];       /*01*/
 131     WORD unknown;               /*21*/
 132 } DriveStruct;
 133
 134 typedef struct tagFileStruct
 135 {
 136     BYTE dummy;                 /*01 is 0x00 for files or dirs */
 137     DWORD dwFileSize;           /*02*/
 138     WORD uFileDate;             /*06*/
 139     WORD uFileTime;             /*08*/
 140     WORD uFileAttribs;          /*10*/
 141     CHAR szNames[1];            /*12*/
 142     /* Here are coming two strings. The first is the long name.
 143     The second the dos name when needed or just 0x00 */
 144 } FileStruct;
 145
 146 typedef struct tagValueW
 147 {
 148     WCHAR name[1];
 149 } ValueWStruct;
 150
 151 typedef struct tagPIDLDATA
 152 {       PIDLTYPE type;                  /*00*/
 153         union
 154         {
 155           struct tagGUIDStruct guid;
 156           struct tagDriveStruct drive;
 157           struct tagFileStruct file;
 158           struct
 159           { WORD dummy;         /*01*/
 160             CHAR szNames[1];    /*03*/
 161           } network;
 162           struct
 163           { WORD dummy;         /*01*/
 164             DWORD dummy1;       /*02*/
 165             CHAR szName[1];     /*06*/ /* terminated by 0x00 0x00 */
 166           } htmlhelp;
 167           struct tagPIDLCPanelStruct cpanel;
 168           struct tagValueW valueW;
 169         }u;
 170 } PIDLDATA, *LPPIDLDATA;
 171 #include "poppack.h"
 172
 173 /*
 174  * getting special values from simple pidls
 175  */
 176 DWORD   _ILSimpleGetText        (LPCITEMIDLIST pidl, LPSTR pOut, UINT uOutSize);
 177 DWORD   _ILSimpleGetTextW       (LPCITEMIDLIST pidl, LPWSTR pOut, UINT uOutSize);
 178 BOOL    _ILGetFileDate          (LPCITEMIDLIST pidl, LPSTR pOut, UINT uOutSize);
 179 DWORD   _ILGetFileSize          (LPCITEMIDLIST pidl, LPSTR pOut, UINT uOutSize);
 180 BOOL    _ILGetExtension         (LPCITEMIDLIST pidl, LPSTR pOut, UINT uOutSize);
 181 void    _ILGetFileType          (LPCITEMIDLIST pidl, LPSTR pOut, UINT uOutSize);
 182 DWORD   _ILGetFileAttributes    (LPCITEMIDLIST pidl, LPSTR pOut, UINT uOutSize);
 183
 184 BOOL    _ILGetFileDateTime      (LPCITEMIDLIST pidl, FILETIME *ft);
 185 DWORD   _ILGetDrive             (LPCITEMIDLIST, LPSTR, UINT);
 186
 187 /*
 188  * testing simple pidls
 189  */
 190 BOOL    _ILIsDesktop            (LPCITEMIDLIST pidl);
 191 BOOL    _ILIsMyComputer         (LPCITEMIDLIST pidl);
 192 BOOL    _ILIsDrive              (LPCITEMIDLIST pidl);
 193 BOOL    _ILIsFolder             (LPCITEMIDLIST pidl);
 194 BOOL    _ILIsValue              (LPCITEMIDLIST pidl);
 195 BOOL    _ILIsSpecialFolder      (LPCITEMIDLIST pidl);
 196 BOOL    _ILIsPidlSimple         (LPCITEMIDLIST pidl);
 197 BOOL    _ILIsCPanelStruct       (LPCITEMIDLIST pidl);
 198
 199 /*
 200  * simple pidls
 201  */
 202
 203 /* Basic PIDL constructor.  Allocates size + 5 bytes, where:
 204  * - two bytes are SHITEMID.cb
 205  * - one byte is PIDLDATA.type
 206  * - two bytes are the NULL PIDL terminator
 207  * Sets type of the returned PIDL to type.
 208  */
 209 LPITEMIDLIST    _ILAlloc(PIDLTYPE type, unsigned int size);
 210
 211 /* Creates a PIDL with guid format and type type, which must be one of PT_GUID,
 212  * PT_SHELLEXT, or PT_YAGUID.
 213  */
 214 LPITEMIDLIST    _ILCreateGuid(PIDLTYPE type, REFIID guid);
 215
 216 /* Like _ILCreateGuid, but using the string szGUID. */
 217 LPITEMIDLIST    _ILCreateGuidFromStrA(LPCSTR szGUID);
 218 LPITEMIDLIST    _ILCreateGuidFromStrW(LPCWSTR szGUID);
 219
 220 /* Commonly used PIDLs representing file system objects. */
 221 LPITEMIDLIST    _ILCreateDesktop        (void);
 222 LPITEMIDLIST    _ILCreateFromFindDataA(WIN32_FIND_DATAA *stffile);
 223 LPITEMIDLIST    _ILCreateFromFindDataW(WIN32_FIND_DATAW *stffile);
 224 HRESULT         _ILCreateFromPathA      (LPCSTR szPath, LPITEMIDLIST* ppidl);
 225 HRESULT         _ILCreateFromPathW      (LPCWSTR szPath, LPITEMIDLIST* ppidl);
 226
 227 /* Other helpers */
 228 LPITEMIDLIST    _ILCreateMyComputer     (void);
 229 LPITEMIDLIST    _ILCreateIExplore       (void);
 230 LPITEMIDLIST    _ILCreateControlPanel   (void);
 231 LPITEMIDLIST    _ILCreatePrinters       (void);
 232 LPITEMIDLIST    _ILCreateNetwork        (void);
 233 LPITEMIDLIST    _ILCreateBitBucket      (void);
 234 LPITEMIDLIST    _ILCreateDrive          (LPCWSTR);
 235
 236 /*
 237  * helper functions (getting struct-pointer)
 238  */
 239 LPPIDLDATA      _ILGetDataPointer       (LPCITEMIDLIST);
 240 LPSTR           _ILGetTextPointer       (LPCITEMIDLIST);
 241 LPSTR           _ILGetSTextPointer      (LPCITEMIDLIST);
 242 IID             *_ILGetGUIDPointer      (LPCITEMIDLIST pidl);
 243
 244 /*
 245  * debug helper
 246  */
 247 void    pdump   (LPCITEMIDLIST pidl);
 248 BOOL    pcheck  (LPCITEMIDLIST pidl);
 249
 250 /*
 251  * aPidl helper
 252  */
 253 void _ILFreeaPidl(LPITEMIDLIST * apidl, UINT cidl);
 254 LPITEMIDLIST * _ILCopyaPidl(LPCITEMIDLIST * apidlsrc, UINT cidl);
 255 LPITEMIDLIST * _ILCopyCidaToaPidl(LPITEMIDLIST* pidl, LPIDA cida);
 256
 257 BOOL WINAPI ILGetDisplayNameExA(LPSHELLFOLDER psf, LPCITEMIDLIST pidl, LPSTR path, DWORD type);
 258 BOOL WINAPI ILGetDisplayNameExW(LPSHELLFOLDER psf, LPCITEMIDLIST pidl, LPWSTR path, DWORD type);
 259
 260 #endif