git.oblomov.eu Git - wine/blob - dlls/shell32/shell.c

   1 /*
   2  *                              Shell Library Functions
   3  *
   4  *  1998 Marcus Meissner
   5  */
   6 #include <assert.h>
   7 #include <stdlib.h>
   8 #include <string.h>
   9 #include <unistd.h>
  10 #include <ctype.h>
  11 #include "wine/winuser16.h"
  12 #include "wine/winbase16.h"
  13 #include "wine/shell16.h"
  14 #include "winerror.h"
  15 #include "file.h"
  16 #include "heap.h"
  17 #include "ldt.h"
  18 #include "module.h"
  19 #include "neexe.h"
  20 #include "dlgs.h"
  21 #include "cursoricon.h"
  22 #include "shellapi.h"
  23 #include "shlobj.h"
  24 #include "debugtools.h"
  25 #include "winreg.h"
  26 #include "syslevel.h"
  27 #include "imagelist.h"
  28
  29 DEFAULT_DEBUG_CHANNEL(shell)
  30 DECLARE_DEBUG_CHANNEL(exec)
  31
  32 /* .ICO file ICONDIR definitions */
  33
  34 #include "pshpack1.h"
  35
  36 typedef struct
  37 {
  38     BYTE        bWidth;          /* Width, in pixels, of the image      */
  39     BYTE        bHeight;         /* Height, in pixels, of the image     */
  40     BYTE        bColorCount;     /* Number of colors in image (0 if >=8bpp) */
  41     BYTE        bReserved;       /* Reserved ( must be 0)               */
  42     WORD        wPlanes;         /* Color Planes                        */
  43     WORD        wBitCount;       /* Bits per pixel                      */
  44     DWORD       dwBytesInRes;    /* How many bytes in this resource?    */
  45     DWORD       dwImageOffset;   /* Where in the file is this image?    */
  46 } icoICONDIRENTRY, *LPicoICONDIRENTRY;
  47
  48 typedef struct
  49 {
  50     WORD            idReserved;   /* Reserved (must be 0)               */
  51     WORD            idType;       /* Resource Type (1 for icons)        */
  52     WORD            idCount;      /* How many images?                   */
  53     icoICONDIRENTRY idEntries[1]; /* An entry for each image (idCount of 'em) */
  54 } icoICONDIR, *LPicoICONDIR;
  55
  56 #include "poppack.h"
  57
  58 static const char*      lpstrMsgWndCreated = "OTHERWINDOWCREATED";
  59 static const char*      lpstrMsgWndDestroyed = "OTHERWINDOWDESTROYED";
  60 static const char*      lpstrMsgShellActivate = "ACTIVATESHELLWINDOW";
  61
  62 static HWND16   SHELL_hWnd = 0;
  63 static HHOOK    SHELL_hHook = 0;
  64 static UINT16   uMsgWndCreated = 0;
  65 static UINT16   uMsgWndDestroyed = 0;
  66 static UINT16   uMsgShellActivate = 0;
  67 HINSTANCE16     SHELL_hInstance = 0;
  68 HINSTANCE SHELL_hInstance32;
  69 static int SHELL_Attach = 0;
  70
  71 /***********************************************************************
  72  * SHELL_DllEntryPoint [SHELL.entry]
  73  *
  74  * Initialization code for shell.dll. Automatically loads the
  75  * 32-bit shell32.dll to allow thunking up to 32-bit code.
  76  *
  77  * RETURNS:
  78  */
  79 BOOL WINAPI SHELL_DllEntryPoint(DWORD Reason, HINSTANCE16 hInst,
  80                                 WORD ds, WORD HeapSize, DWORD res1, WORD res2)
  81 {
  82     TRACE("(%08lx, %04x, %04x, %04x, %08lx, %04x)\n",
  83           Reason, hInst, ds, HeapSize, res1, res2);
  84
  85     switch(Reason)
  86     {
  87     case DLL_PROCESS_ATTACH:
  88         SHELL_Attach++;
  89         if (SHELL_hInstance)
  90         {
  91             ERR("shell.dll instantiated twice!\n");
  92             /*
  93              * We should return FALSE here, but that will break
  94              * most apps that use CreateProcess because we do
  95              * not yet support seperate address-spaces.
  96              */
  97             return TRUE;
  98         }
  99
 100         SHELL_hInstance = hInst;
 101         if(!SHELL_hInstance32)
 102         {
 103             if(!(SHELL_hInstance32 = LoadLibraryA("shell32.dll")))
 104             {
 105                 ERR("Could not load sibling shell32.dll\n");
 106                 return FALSE;
 107             }
 108         }
 109         break;
 110
 111     case DLL_PROCESS_DETACH:
 112         if(!--SHELL_Attach)
 113         {
 114             SHELL_hInstance = 0;
 115             if(SHELL_hInstance32)
 116                 FreeLibrary(SHELL_hInstance32);
 117         }
 118         break;
 119     }
 120     return TRUE;
 121 }
 122
 123 /*************************************************************************
 124  *                              DragAcceptFiles32               [SHELL32.54]
 125  */
 126 void WINAPI DragAcceptFiles(HWND hWnd, BOOL b)
 127 {
 128   LONG exstyle;
 129
 130
 131   if( !IsWindow(hWnd) )
 132         return;
 133   exstyle = GetWindowLongA(hWnd,GWL_EXSTYLE);
 134   if (b)exstyle |= WS_EX_ACCEPTFILES;
 135   else  exstyle &= ~WS_EX_ACCEPTFILES;
 136   SetWindowLongA(hWnd,GWL_EXSTYLE,exstyle);
 137 }
 138
 139 /*************************************************************************
 140  *                              DragAcceptFiles16               [SHELL.9]
 141  */
 142 void WINAPI DragAcceptFiles16(HWND16 hWnd, BOOL16 b)
 143 {
 144   DragAcceptFiles(hWnd, b);
 145 }
 146
 147 /*************************************************************************
 148  *                              SHELL_DragQueryFile     [internal]
 149  *
 150  */
 151 static UINT SHELL_DragQueryFile(LPSTR lpDrop, LPWSTR lpwDrop, UINT lFile,
 152                                   LPSTR lpszFile, LPWSTR lpszwFile, UINT lLength)
 153 {
 154     UINT i;
 155
 156     i = 0;
 157     if (lpDrop) {
 158     while (i++ < lFile) {
 159         while (*lpDrop++); /* skip filename */
 160         if (!*lpDrop)
 161           return (lFile == 0xFFFFFFFF) ? i : 0;
 162       }
 163     }
 164     if (lpwDrop) {
 165       while (i++ < lFile) {
 166         while (*lpwDrop++); /* skip filename */
 167         if (!*lpwDrop)
 168           return (lFile == 0xFFFFFFFF) ? i : 0;
 169       }
 170     }
 171
 172     if (lpDrop)  i = lstrlenA(lpDrop);
 173     if (lpwDrop) i = lstrlenW(lpwDrop);
 174     i++;
 175     if (!lpszFile && !lpszwFile) {
 176       return i;   /* needed buffer size */
 177     }
 178     i = (lLength > i) ? i : lLength;
 179     if (lpszFile) {
 180       if (lpDrop) lstrcpynA (lpszFile,  lpDrop,  i);
 181       else        lstrcpynWtoA(lpszFile,  lpwDrop, i);
 182     } else {
 183       if (lpDrop) lstrcpynAtoW(lpszwFile, lpDrop,  i);
 184       else        lstrcpynW (lpszwFile, lpwDrop, i);
 185     }
 186     return i;
 187 }
 188
 189 /*************************************************************************
 190  *                              DragQueryFile32A        [SHELL32.81] [shell32.82]
 191  */
 192 UINT WINAPI DragQueryFileA(HDROP hDrop, UINT lFile, LPSTR lpszFile,
 193                               UINT lLength)
 194 { /* hDrop is a global memory block allocated with GMEM_SHARE
 195      * with DROPFILESTRUCT as a header and filenames following
 196      * it, zero length filename is in the end */
 197
 198     LPDROPFILESTRUCT lpDropFileStruct;
 199     LPSTR lpCurrent;
 200     UINT i;
 201
 202     TRACE("(%08x, %x, %p, %u)\n",       hDrop,lFile,lpszFile,lLength);
 203
 204     lpDropFileStruct = (LPDROPFILESTRUCT) GlobalLock(hDrop);
 205     if(!lpDropFileStruct)
 206       return 0;
 207
 208     lpCurrent = (LPSTR) lpDropFileStruct + lpDropFileStruct->lSize;
 209     i = SHELL_DragQueryFile(lpCurrent, NULL, lFile, lpszFile, NULL, lLength);
 210     GlobalUnlock(hDrop);
 211     return i;
 212 }
 213
 214 /*************************************************************************
 215  *                              DragQueryFile32W        [shell32.133]
 216  */
 217 UINT WINAPI DragQueryFileW(HDROP hDrop, UINT lFile, LPWSTR lpszwFile,
 218                               UINT lLength)
 219 {
 220     LPDROPFILESTRUCT lpDropFileStruct;
 221     LPWSTR lpwCurrent;
 222     UINT i;
 223
 224     TRACE("(%08x, %x, %p, %u)\n",       hDrop,lFile,lpszwFile,lLength);
 225
 226     lpDropFileStruct = (LPDROPFILESTRUCT) GlobalLock(hDrop);
 227     if(!lpDropFileStruct)
 228       return 0;
 229
 230     lpwCurrent = (LPWSTR) lpDropFileStruct + lpDropFileStruct->lSize;
 231     i = SHELL_DragQueryFile(NULL, lpwCurrent, lFile, NULL, lpszwFile,lLength);
 232     GlobalUnlock(hDrop);
 233     return i;
 234 }
 235 /*************************************************************************
 236  *                              DragQueryFile16         [SHELL.11]
 237  */
 238 UINT16 WINAPI DragQueryFile16(HDROP16 hDrop, WORD wFile, LPSTR lpszFile,
 239                             WORD wLength)
 240 { /* hDrop is a global memory block allocated with GMEM_SHARE
 241      * with DROPFILESTRUCT as a header and filenames following
 242      * it, zero length filename is in the end */
 243
 244     LPDROPFILESTRUCT16 lpDropFileStruct;
 245     LPSTR lpCurrent;
 246     WORD  i;
 247
 248     TRACE("(%04x, %x, %p, %u)\n", hDrop,wFile,lpszFile,wLength);
 249
 250     lpDropFileStruct = (LPDROPFILESTRUCT16) GlobalLock16(hDrop);
 251     if(!lpDropFileStruct)
 252       return 0;
 253
 254     lpCurrent = (LPSTR) lpDropFileStruct + lpDropFileStruct->wSize;
 255
 256     i = (WORD)SHELL_DragQueryFile(lpCurrent, NULL, wFile==0xffff?0xffffffff:wFile,
 257                                   lpszFile, NULL, wLength);
 258     GlobalUnlock16(hDrop);
 259     return i;
 260 }
 261
 262
 263
 264 /*************************************************************************
 265  *                              DragFinish32            [SHELL32.80]
 266  */
 267 void WINAPI DragFinish(HDROP h)
 268 {
 269     TRACE("\n");
 270     GlobalFree((HGLOBAL)h);
 271 }
 272
 273 /*************************************************************************
 274  *                              DragFinish16            [SHELL.12]
 275  */
 276 void WINAPI DragFinish16(HDROP16 h)
 277 {
 278     TRACE("\n");
 279     GlobalFree16((HGLOBAL16)h);
 280 }
 281
 282
 283 /*************************************************************************
 284  *                              DragQueryPoint32                [SHELL32.135]
 285  */
 286 BOOL WINAPI DragQueryPoint(HDROP hDrop, POINT *p)
 287 {
 288   LPDROPFILESTRUCT lpDropFileStruct;
 289   BOOL             bRet;
 290   TRACE("\n");
 291   lpDropFileStruct = (LPDROPFILESTRUCT) GlobalLock(hDrop);
 292
 293   memcpy(p,&lpDropFileStruct->ptMousePos,sizeof(POINT));
 294   bRet = lpDropFileStruct->fInNonClientArea;
 295
 296   GlobalUnlock(hDrop);
 297   return bRet;
 298 }
 299
 300 /*************************************************************************
 301  *                              DragQueryPoint16                [SHELL.13]
 302  */
 303 BOOL16 WINAPI DragQueryPoint16(HDROP16 hDrop, POINT16 *p)
 304 {
 305   LPDROPFILESTRUCT16 lpDropFileStruct;
 306   BOOL16           bRet;
 307   TRACE("\n");
 308   lpDropFileStruct = (LPDROPFILESTRUCT16) GlobalLock16(hDrop);
 309
 310   memcpy(p,&lpDropFileStruct->ptMousePos,sizeof(POINT16));
 311   bRet = lpDropFileStruct->fInNonClientArea;
 312
 313   GlobalUnlock16(hDrop);
 314   return bRet;
 315 }
 316
 317 /*************************************************************************
 318  *      SHELL_FindExecutable [Internal]
 319  *
 320  * Utility for code sharing between FindExecutable and ShellExecute
 321  */
 322 HINSTANCE SHELL_FindExecutable( LPCSTR lpFile,
 323                                          LPCSTR lpOperation,
 324                                          LPSTR lpResult)
 325 { char *extension = NULL; /* pointer to file extension */
 326     char tmpext[5];         /* local copy to mung as we please */
 327     char filetype[256];     /* registry name for this filetype */
 328     LONG filetypelen=256;   /* length of above */
 329     char command[256];      /* command from registry */
 330     LONG commandlen=256;    /* This is the most DOS can handle :) */
 331     char buffer[256];       /* Used to GetProfileString */
 332     HINSTANCE retval=31;  /* default - 'No association was found' */
 333     char *tok;              /* token pointer */
 334     int i;                  /* random counter */
 335     char xlpFile[256];      /* result of SearchPath */
 336
 337   TRACE("%s\n", (lpFile != NULL?lpFile:"-") );
 338
 339     lpResult[0]='\0'; /* Start off with an empty return string */
 340
 341     /* trap NULL parameters on entry */
 342     if (( lpFile == NULL ) || ( lpResult == NULL ) || ( lpOperation == NULL ))
 343   { WARN_(exec)("(lpFile=%s,lpResult=%s,lpOperation=%s): NULL parameter\n",
 344            lpFile, lpOperation, lpResult);
 345         return 2; /* File not found. Close enough, I guess. */
 346     }
 347
 348     if (SearchPathA( NULL, lpFile,".exe",sizeof(xlpFile),xlpFile,NULL))
 349   { TRACE("SearchPath32A returned non-zero\n");
 350         lpFile = xlpFile;
 351     }
 352
 353     /* First thing we need is the file's extension */
 354     extension = strrchr( xlpFile, '.' ); /* Assume last "." is the one; */
 355                                         /* File->Run in progman uses */
 356                                         /* .\FILE.EXE :( */
 357   TRACE("xlpFile=%s,extension=%s\n", xlpFile, extension);
 358
 359     if ((extension == NULL) || (extension == &xlpFile[strlen(xlpFile)]))
 360   { WARN("Returning 31 - No association\n");
 361         return 31; /* no association */
 362     }
 363
 364     /* Make local copy & lowercase it for reg & 'programs=' lookup */
 365     lstrcpynA( tmpext, extension, 5 );
 366     CharLowerA( tmpext );
 367   TRACE("%s file\n", tmpext);
 368
 369     /* Three places to check: */
 370     /* 1. win.ini, [windows], programs (NB no leading '.') */
 371     /* 2. Registry, HKEY_CLASS_ROOT\<filetype>\shell\open\command */
 372     /* 3. win.ini, [extensions], extension (NB no leading '.' */
 373     /* All I know of the order is that registry is checked before */
 374     /* extensions; however, it'd make sense to check the programs */
 375     /* section first, so that's what happens here. */
 376
 377     /* See if it's a program - if GetProfileString fails, we skip this
 378      * section. Actually, if GetProfileString fails, we've probably
 379      * got a lot more to worry about than running a program... */
 380     if ( GetProfileStringA("windows", "programs", "exe pif bat com",
 381                                                   buffer, sizeof(buffer)) > 0 )
 382   { for (i=0;i<strlen(buffer); i++) buffer[i]=tolower(buffer[i]);
 383
 384                 tok = strtok(buffer, " \t"); /* ? */
 385                 while( tok!= NULL)
 386                   {
 387                         if (strcmp(tok, &tmpext[1])==0) /* have to skip the leading "." */
 388                           {
 389                                 strcpy(lpResult, xlpFile);
 390                                 /* Need to perhaps check that the file has a path
 391                                  * attached */
 392         TRACE("found %s\n", lpResult);
 393         return 33;
 394
 395                 /* Greater than 32 to indicate success FIXME According to the
 396                  * docs, I should be returning a handle for the
 397                  * executable. Does this mean I'm supposed to open the
 398                  * executable file or something? More RTFM, I guess... */
 399                           }
 400                         tok=strtok(NULL, " \t");
 401                   }
 402           }
 403
 404     /* Check registry */
 405     if (RegQueryValue16( HKEY_CLASSES_ROOT, tmpext, filetype,
 406                          &filetypelen ) == ERROR_SUCCESS )
 407     {
 408         filetype[filetypelen]='\0';
 409   TRACE("File type: %s\n", filetype);
 410
 411         /* Looking for ...buffer\shell\lpOperation\command */
 412         strcat( filetype, "\\shell\\" );
 413         strcat( filetype, lpOperation );
 414         strcat( filetype, "\\command" );
 415
 416         if (RegQueryValue16( HKEY_CLASSES_ROOT, filetype, command,
 417                              &commandlen ) == ERROR_SUCCESS )
 418         {
 419             /* Is there a replace() function anywhere? */
 420             command[commandlen]='\0';
 421             strcpy( lpResult, command );
 422             tok=strstr( lpResult, "%1" );
 423             if (tok != NULL)
 424             {
 425                 tok[0]='\0'; /* truncate string at the percent */
 426                 strcat( lpResult, xlpFile ); /* what if no dir in xlpFile? */
 427                 tok=strstr( command, "%1" );
 428                 if ((tok!=NULL) && (strlen(tok)>2))
 429                 {
 430                     strcat( lpResult, &tok[2] );
 431                 }
 432             }
 433             retval=33; /* FIXME see above */
 434         }
 435     }
 436     else /* Check win.ini */
 437     {
 438         /* Toss the leading dot */
 439         extension++;
 440         if ( GetProfileStringA( "extensions", extension, "", command,
 441                                   sizeof(command)) > 0)
 442           {
 443                 if (strlen(command)!=0)
 444                   {
 445                         strcpy( lpResult, command );
 446                         tok=strstr( lpResult, "^" ); /* should be ^.extension? */
 447                         if (tok != NULL)
 448                           {
 449                                 tok[0]='\0';
 450                                 strcat( lpResult, xlpFile ); /* what if no dir in xlpFile? */
 451                                 tok=strstr( command, "^" ); /* see above */
 452                                 if ((tok != NULL) && (strlen(tok)>5))
 453                                   {
 454                                         strcat( lpResult, &tok[5]);
 455                                   }
 456                           }
 457                         retval=33; /* FIXME - see above */
 458                   }
 459           }
 460         }
 461
 462     TRACE("returning %s\n", lpResult);
 463     return retval;
 464 }
 465
 466 /*************************************************************************
 467  *                              ShellExecute16          [SHELL.20]
 468  */
 469 HINSTANCE16 WINAPI ShellExecute16( HWND16 hWnd, LPCSTR lpOperation,
 470                                    LPCSTR lpFile, LPCSTR lpParameters,
 471                                    LPCSTR lpDirectory, INT16 iShowCmd )
 472 {   HINSTANCE16 retval=31;
 473     char old_dir[1024];
 474     char cmd[256];
 475
 476     TRACE("(%04x,'%s','%s','%s','%s',%x)\n",
 477                 hWnd, lpOperation ? lpOperation:"<null>", lpFile ? lpFile:"<null>",
 478                 lpParameters ? lpParameters : "<null>",
 479                 lpDirectory ? lpDirectory : "<null>", iShowCmd);
 480
 481     if (lpFile==NULL) return 0; /* should not happen */
 482     if (lpOperation==NULL) /* default is open */
 483       lpOperation="open";
 484
 485     if (lpDirectory)
 486     { GetCurrentDirectoryA( sizeof(old_dir), old_dir );
 487         SetCurrentDirectoryA( lpDirectory );
 488     }
 489
 490     retval = SHELL_FindExecutable( lpFile, lpOperation, cmd );
 491
 492     if (retval > 32)  /* Found */
 493     {
 494         if (lpParameters)
 495         {
 496             strcat(cmd," ");
 497             strcat(cmd,lpParameters);
 498         }
 499
 500         TRACE("starting %s\n",cmd);
 501         SYSLEVEL_ReleaseWin16Lock();
 502         retval = WinExec( cmd, iShowCmd );
 503         SYSLEVEL_RestoreWin16Lock();
 504     }
 505     if (lpDirectory)
 506       SetCurrentDirectoryA( old_dir );
 507     return retval;
 508 }
 509
 510 /*************************************************************************
 511  *             FindExecutable16   (SHELL.21)
 512  */
 513 HINSTANCE16 WINAPI FindExecutable16( LPCSTR lpFile, LPCSTR lpDirectory,
 514                                      LPSTR lpResult )
 515 { return (HINSTANCE16)FindExecutableA( lpFile, lpDirectory, lpResult );
 516 }
 517
 518
 519 /*************************************************************************
 520  *             AboutDlgProc16   (SHELL.33)
 521  */
 522 BOOL16 WINAPI AboutDlgProc16( HWND16 hWnd, UINT16 msg, WPARAM16 wParam,
 523                                LPARAM lParam )
 524 { return AboutDlgProc( hWnd, msg, wParam, lParam );
 525 }
 526
 527
 528 /*************************************************************************
 529  *             ShellAbout16   (SHELL.22)
 530  */
 531 BOOL16 WINAPI ShellAbout16( HWND16 hWnd, LPCSTR szApp, LPCSTR szOtherStuff,
 532                             HICON16 hIcon )
 533 { return ShellAboutA( hWnd, szApp, szOtherStuff, hIcon );
 534 }
 535
 536 /*************************************************************************
 537  *                              SHELL_GetResourceTable
 538  */
 539 static DWORD SHELL_GetResourceTable(HFILE hFile,LPBYTE *retptr)
 540 {       IMAGE_DOS_HEADER        mz_header;
 541         char                    magic[4];
 542         int                     size;
 543
 544         TRACE("\n");
 545
 546         *retptr = NULL;
 547         _llseek( hFile, 0, SEEK_SET );
 548         if ((_lread(hFile,&mz_header,sizeof(mz_header)) != sizeof(mz_header)) || (mz_header.e_magic != IMAGE_DOS_SIGNATURE))
 549         { /* .ICO file ? */
 550           if (mz_header.e_cblp == 1)
 551           { /* ICONHEADER.idType, must be 1 */
 552             *retptr = (LPBYTE)-1;
 553             return 1;
 554           }
 555           else
 556             return 0; /* failed */
 557         }
 558         _llseek( hFile, mz_header.e_lfanew, SEEK_SET );
 559
 560         if (_lread( hFile, magic, sizeof(magic) ) != sizeof(magic))
 561           return 0;
 562
 563         _llseek( hFile, mz_header.e_lfanew, SEEK_SET);
 564
 565         if (*(DWORD*)magic  == IMAGE_NT_SIGNATURE)
 566           return IMAGE_NT_SIGNATURE;
 567
 568         if (*(WORD*)magic == IMAGE_OS2_SIGNATURE)
 569         { IMAGE_OS2_HEADER      ne_header;
 570           LPBYTE                pTypeInfo = (LPBYTE)-1;
 571
 572           if (_lread(hFile,&ne_header,sizeof(ne_header))!=sizeof(ne_header))
 573             return 0;
 574
 575           if (ne_header.ne_magic != IMAGE_OS2_SIGNATURE)
 576             return 0;
 577
 578           size = ne_header.rname_tab_offset - ne_header.resource_tab_offset;
 579
 580           if( size > sizeof(NE_TYPEINFO) )
 581           { pTypeInfo = (BYTE*)HeapAlloc( GetProcessHeap(), 0, size);
 582             if( pTypeInfo )
 583             { _llseek(hFile, mz_header.e_lfanew+ne_header.resource_tab_offset, SEEK_SET);
 584               if( _lread( hFile, (char*)pTypeInfo, size) != size )
 585               { HeapFree( GetProcessHeap(), 0, pTypeInfo);
 586                 pTypeInfo = NULL;
 587               }
 588             }
 589           }
 590           *retptr = pTypeInfo;
 591           return IMAGE_OS2_SIGNATURE;
 592         }
 593         return 0; /* failed */
 594 }
 595
 596 /*************************************************************************
 597  *                      SHELL_LoadResource
 598  */
 599 static HGLOBAL16 SHELL_LoadResource(HINSTANCE16 hInst, HFILE hFile, NE_NAMEINFO* pNInfo, WORD sizeShift)
 600 {       BYTE*  ptr;
 601         HGLOBAL16 handle = DirectResAlloc16( hInst, 0x10, (DWORD)pNInfo->length << sizeShift);
 602
 603         TRACE("\n");
 604
 605         if( (ptr = (BYTE*)GlobalLock16( handle )) )
 606         { _llseek( hFile, (DWORD)pNInfo->offset << sizeShift, SEEK_SET);
 607           _lread( hFile, (char*)ptr, pNInfo->length << sizeShift);
 608           return handle;
 609         }
 610         return 0;
 611 }
 612
 613 /*************************************************************************
 614  *                      ICO_LoadIcon
 615  */
 616 static HGLOBAL16 ICO_LoadIcon(HINSTANCE16 hInst, HFILE hFile, LPicoICONDIRENTRY lpiIDE)
 617 {       BYTE*  ptr;
 618         HGLOBAL16 handle = DirectResAlloc16( hInst, 0x10, lpiIDE->dwBytesInRes);
 619         TRACE("\n");
 620         if( (ptr = (BYTE*)GlobalLock16( handle )) )
 621         { _llseek( hFile, lpiIDE->dwImageOffset, SEEK_SET);
 622           _lread( hFile, (char*)ptr, lpiIDE->dwBytesInRes);
 623           return handle;
 624         }
 625         return 0;
 626 }
 627
 628 /*************************************************************************
 629  *                      ICO_GetIconDirectory
 630  *
 631  *  Read .ico file and build phony ICONDIR struct for GetIconID
 632  */
 633 static HGLOBAL16 ICO_GetIconDirectory(HINSTANCE16 hInst, HFILE hFile, LPicoICONDIR* lplpiID )
 634 { WORD    id[3];  /* idReserved, idType, idCount */
 635   LPicoICONDIR  lpiID;
 636   int           i;
 637
 638   TRACE("\n");
 639   _llseek( hFile, 0, SEEK_SET );
 640   if( _lread(hFile,(char*)id,sizeof(id)) != sizeof(id) ) return 0;
 641
 642   /* check .ICO header
 643    *
 644    * - see http://www.microsoft.com/win32dev/ui/icons.htm
 645    */
 646
 647   if( id[0] || id[1] != 1 || !id[2] ) return 0;
 648
 649   i = id[2]*sizeof(icoICONDIRENTRY) ;
 650
 651   lpiID = (LPicoICONDIR)HeapAlloc( GetProcessHeap(), 0, i + sizeof(id));
 652
 653   if( _lread(hFile,(char*)lpiID->idEntries,i) == i )
 654   { HGLOBAL16 handle = DirectResAlloc16( hInst, 0x10,
 655                                      id[2]*sizeof(CURSORICONDIRENTRY) + sizeof(id) );
 656      if( handle )
 657     { CURSORICONDIR*     lpID = (CURSORICONDIR*)GlobalLock16( handle );
 658        lpID->idReserved = lpiID->idReserved = id[0];
 659        lpID->idType = lpiID->idType = id[1];
 660        lpID->idCount = lpiID->idCount = id[2];
 661        for( i=0; i < lpiID->idCount; i++ )
 662       { memcpy((void*)(lpID->idEntries + i),
 663                    (void*)(lpiID->idEntries + i), sizeof(CURSORICONDIRENTRY) - 2);
 664             lpID->idEntries[i].wResId = i;
 665          }
 666       *lplpiID = lpiID;
 667        return handle;
 668      }
 669   }
 670   /* fail */
 671
 672   HeapFree( GetProcessHeap(), 0, lpiID);
 673   return 0;
 674 }
 675
 676 /*************************************************************************
 677  *                      InternalExtractIcon             [SHELL.39]
 678  *
 679  * This abortion is called directly by Progman
 680  */
 681 HGLOBAL16 WINAPI InternalExtractIcon16(HINSTANCE16 hInstance,
 682                                      LPCSTR lpszExeFileName, UINT16 nIconIndex, WORD n )
 683 {       HGLOBAL16       hRet = 0;
 684         HGLOBAL16*      RetPtr = NULL;
 685         LPBYTE          pData;
 686         OFSTRUCT        ofs;
 687         DWORD           sig;
 688         HFILE           hFile = OpenFile( lpszExeFileName, &ofs, OF_READ );
 689         UINT16          iconDirCount = 0,iconCount = 0;
 690         LPBYTE          peimage;
 691         HANDLE  fmapping;
 692
 693         TRACE("(%04x,file %s,start %d,extract %d\n",
 694                        hInstance, lpszExeFileName, nIconIndex, n);
 695
 696         if( hFile == HFILE_ERROR || !n )
 697           return 0;
 698
 699         hRet = GlobalAlloc16( GMEM_FIXED | GMEM_ZEROINIT, sizeof(HICON16)*n);
 700         RetPtr = (HICON16*)GlobalLock16(hRet);
 701
 702         *RetPtr = (n == 0xFFFF)? 0: 1;  /* error return values */
 703
 704         sig = SHELL_GetResourceTable(hFile,&pData);
 705
 706         if( sig==IMAGE_OS2_SIGNATURE || sig==1 ) /* .ICO file */
 707         { HICON16        hIcon = 0;
 708           NE_TYPEINFO* pTInfo = (NE_TYPEINFO*)(pData + 2);
 709           NE_NAMEINFO* pIconStorage = NULL;
 710           NE_NAMEINFO* pIconDir = NULL;
 711           LPicoICONDIR lpiID = NULL;
 712
 713           if( pData == (BYTE*)-1 )
 714           { hIcon = ICO_GetIconDirectory(hInstance, hFile, &lpiID);     /* check for .ICO file */
 715             if( hIcon )
 716             { iconDirCount = 1; iconCount = lpiID->idCount;
 717             }
 718           }
 719           else while( pTInfo->type_id && !(pIconStorage && pIconDir) )
 720           { if( pTInfo->type_id == NE_RSCTYPE_GROUP_ICON )      /* find icon directory and icon repository */
 721             { iconDirCount = pTInfo->count;
 722               pIconDir = ((NE_NAMEINFO*)(pTInfo + 1));
 723               TRACE("\tfound directory - %i icon families\n", iconDirCount);
 724             }
 725             if( pTInfo->type_id == NE_RSCTYPE_ICON )
 726             { iconCount = pTInfo->count;
 727               pIconStorage = ((NE_NAMEINFO*)(pTInfo + 1));
 728               TRACE("\ttotal icons - %i\n", iconCount);
 729             }
 730             pTInfo = (NE_TYPEINFO *)((char*)(pTInfo+1)+pTInfo->count*sizeof(NE_NAMEINFO));
 731           }
 732
 733           /* load resources and create icons */
 734
 735           if( (pIconStorage && pIconDir) || lpiID )
 736           { if( nIconIndex == (UINT16)-1 )
 737             { RetPtr[0] = iconDirCount;
 738             }
 739             else if( nIconIndex < iconDirCount )
 740             { UINT16   i, icon;
 741               if( n > iconDirCount - nIconIndex )
 742                 n = iconDirCount - nIconIndex;
 743
 744               for( i = nIconIndex; i < nIconIndex + n; i++ )
 745               { /* .ICO files have only one icon directory */
 746
 747                 if( lpiID == NULL )
 748                   hIcon = SHELL_LoadResource( hInstance, hFile, pIconDir + i, *(WORD*)pData );
 749                 RetPtr[i-nIconIndex] = GetIconID16( hIcon, 3 );
 750                 GlobalFree16(hIcon);
 751               }
 752
 753               for( icon = nIconIndex; icon < nIconIndex + n; icon++ )
 754               { hIcon = 0;
 755                 if( lpiID )
 756                 { hIcon = ICO_LoadIcon( hInstance, hFile, lpiID->idEntries + RetPtr[icon-nIconIndex]);
 757                 }
 758                 else
 759                 { for( i = 0; i < iconCount; i++ )
 760                   { if( pIconStorage[i].id == (RetPtr[icon-nIconIndex] | 0x8000) )
 761                     { hIcon = SHELL_LoadResource( hInstance, hFile, pIconStorage + i,*(WORD*)pData );
 762                     }
 763                   }
 764                 }
 765                 if( hIcon )
 766                 { RetPtr[icon-nIconIndex] = LoadIconHandler16( hIcon, TRUE );
 767                   FarSetOwner16( RetPtr[icon-nIconIndex], GetExePtr(hInstance) );
 768                 }
 769                 else
 770                 { RetPtr[icon-nIconIndex] = 0;
 771                 }
 772               }
 773             }
 774           }
 775           if( lpiID )
 776             HeapFree( GetProcessHeap(), 0, lpiID);
 777           else
 778             HeapFree( GetProcessHeap(), 0, pData);
 779         }
 780
 781         if( sig == IMAGE_NT_SIGNATURE)
 782         { LPBYTE                idata,igdata;
 783           PIMAGE_DOS_HEADER     dheader;
 784           PIMAGE_NT_HEADERS     pe_header;
 785           PIMAGE_SECTION_HEADER pe_sections;
 786           PIMAGE_RESOURCE_DIRECTORY     rootresdir,iconresdir,icongroupresdir;
 787           PIMAGE_RESOURCE_DATA_ENTRY    idataent,igdataent;
 788           int                   i,j;
 789           PIMAGE_RESOURCE_DIRECTORY_ENTRY       xresent;
 790           CURSORICONDIR         **cids;
 791
 792           fmapping = CreateFileMappingA(hFile,NULL,PAGE_READONLY|SEC_COMMIT,0,0,NULL);
 793           if (fmapping == 0)
 794           { /* FIXME, INVALID_HANDLE_VALUE? */
 795             WARN("failed to create filemap.\n");
 796             hRet = 0;
 797             goto end_2; /* failure */
 798           }
 799           peimage = MapViewOfFile(fmapping,FILE_MAP_READ,0,0,0);
 800           if (!peimage)
 801           { WARN("failed to mmap filemap.\n");
 802             hRet = 0;
 803             goto end_2; /* failure */
 804           }
 805           dheader = (PIMAGE_DOS_HEADER)peimage;
 806
 807           /* it is a pe header, SHELL_GetResourceTable checked that */
 808           pe_header = (PIMAGE_NT_HEADERS)(peimage+dheader->e_lfanew);
 809
 810           /* probably makes problems with short PE headers... but I haven't seen
 811           * one yet...
 812           */
 813           pe_sections = (PIMAGE_SECTION_HEADER)(((char*)pe_header)+sizeof(*pe_header));
 814           rootresdir = NULL;
 815
 816           for (i=0;i<pe_header->FileHeader.NumberOfSections;i++)
 817           { if (pe_sections[i].Characteristics & IMAGE_SCN_CNT_UNINITIALIZED_DATA)
 818               continue;
 819             /* FIXME: doesn't work when the resources are not in a seperate section */
 820             if (pe_sections[i].VirtualAddress == pe_header->OptionalHeader.DataDirectory[IMAGE_DIRECTORY_ENTRY_RESOURCE].VirtualAddress)
 821             { rootresdir = (PIMAGE_RESOURCE_DIRECTORY)((char*)peimage+pe_sections[i].PointerToRawData);
 822               break;
 823             }
 824           }
 825
 826           if (!rootresdir)
 827           { WARN("haven't found section for resource directory.\n");
 828             goto end_4; /* failure */
 829           }
 830
 831           icongroupresdir = GetResDirEntryW(rootresdir,RT_GROUP_ICONW, (DWORD)rootresdir,FALSE);
 832
 833           if (!icongroupresdir)
 834           { WARN("No Icongroupresourcedirectory!\n");
 835             goto end_4; /* failure */
 836           }
 837
 838           iconDirCount = icongroupresdir->NumberOfNamedEntries+icongroupresdir->NumberOfIdEntries;
 839
 840           if( nIconIndex == (UINT16)-1 )
 841           { RetPtr[0] = iconDirCount;
 842             goto end_3; /* success */
 843           }
 844
 845           if (nIconIndex >= iconDirCount)
 846           { WARN("nIconIndex %d is larger than iconDirCount %d\n",nIconIndex,iconDirCount);
 847             GlobalFree16(hRet);
 848             goto end_4; /* failure */
 849           }
 850
 851           cids = (CURSORICONDIR**)HeapAlloc(GetProcessHeap(),0,n*sizeof(CURSORICONDIR*));
 852
 853           /* caller just wanted the number of entries */
 854           xresent = (PIMAGE_RESOURCE_DIRECTORY_ENTRY)(icongroupresdir+1);
 855
 856           /* assure we don't get too much ... */
 857           if( n > iconDirCount - nIconIndex )
 858           { n = iconDirCount - nIconIndex;
 859           }
 860
 861           /* starting from specified index ... */
 862           xresent = xresent+nIconIndex;
 863
 864           for (i=0;i<n;i++,xresent++)
 865           { CURSORICONDIR       *cid;
 866             PIMAGE_RESOURCE_DIRECTORY   resdir;
 867
 868             /* go down this resource entry, name */
 869             resdir = (PIMAGE_RESOURCE_DIRECTORY)((DWORD)rootresdir+(xresent->u2.s.OffsetToDirectory));
 870
 871             /* default language (0) */
 872             resdir = GetResDirEntryW(resdir,(LPWSTR)0,(DWORD)rootresdir,TRUE);
 873             igdataent = (PIMAGE_RESOURCE_DATA_ENTRY)resdir;
 874
 875             /* lookup address in mapped image for virtual address */
 876             igdata = NULL;
 877
 878             for (j=0;j<pe_header->FileHeader.NumberOfSections;j++)
 879             { if (igdataent->OffsetToData < pe_sections[j].VirtualAddress)
 880                 continue;
 881               if (igdataent->OffsetToData+igdataent->Size > pe_sections[j].VirtualAddress+pe_sections[j].SizeOfRawData)
 882                 continue;
 883               igdata = peimage+(igdataent->OffsetToData-pe_sections[j].VirtualAddress+pe_sections[j].PointerToRawData);
 884             }
 885
 886             if (!igdata)
 887             { WARN("no matching real address for icongroup!\n");
 888               goto end_4;       /* failure */
 889             }
 890             /* found */
 891             cid = (CURSORICONDIR*)igdata;
 892             cids[i] = cid;
 893             RetPtr[i] = LookupIconIdFromDirectoryEx(igdata,TRUE,GetSystemMetrics(SM_CXICON),GetSystemMetrics(SM_CYICON),0);
 894           }
 895
 896           iconresdir=GetResDirEntryW(rootresdir,RT_ICONW,(DWORD)rootresdir,FALSE);
 897
 898           if (!iconresdir)
 899           { WARN("No Iconresourcedirectory!\n");
 900             goto end_4; /* failure */
 901           }
 902
 903           for (i=0;i<n;i++)
 904           { PIMAGE_RESOURCE_DIRECTORY   xresdir;
 905             xresdir = GetResDirEntryW(iconresdir,(LPWSTR)(DWORD)RetPtr[i],(DWORD)rootresdir,FALSE);
 906             xresdir = GetResDirEntryW(xresdir,(LPWSTR)0,(DWORD)rootresdir,TRUE);
 907             idataent = (PIMAGE_RESOURCE_DATA_ENTRY)xresdir;
 908             idata = NULL;
 909
 910             /* map virtual to address in image */
 911             for (j=0;j<pe_header->FileHeader.NumberOfSections;j++)
 912             { if (idataent->OffsetToData < pe_sections[j].VirtualAddress)
 913                 continue;
 914               if (idataent->OffsetToData+idataent->Size > pe_sections[j].VirtualAddress+pe_sections[j].SizeOfRawData)
 915                 continue;
 916               idata = peimage+(idataent->OffsetToData-pe_sections[j].VirtualAddress+pe_sections[j].PointerToRawData);
 917             }
 918             if (!idata)
 919             { WARN("no matching real address found for icondata!\n");
 920               RetPtr[i]=0;
 921               continue;
 922             }
 923             RetPtr[i] = CreateIconFromResourceEx(idata,idataent->Size,TRUE,0x00030000,GetSystemMetrics(SM_CXICON),GetSystemMetrics(SM_CYICON),0);
 924           }
 925           goto end_3;   /* sucess */
 926         }
 927         goto end_1;     /* return array with icon handles */
 928
 929 /* cleaning up (try & catch would be nicer) */
 930 end_4:  hRet = 0;       /* failure */
 931 end_3:  UnmapViewOfFile(peimage);       /* success */
 932 end_2:  CloseHandle(fmapping);
 933 end_1:  _lclose( hFile);
 934         return hRet;
 935 }
 936
 937 /*************************************************************************
 938  *             ExtractIcon16   (SHELL.34)
 939  */
 940 HICON16 WINAPI ExtractIcon16( HINSTANCE16 hInstance, LPCSTR lpszExeFileName,
 941         UINT16 nIconIndex )
 942 {   TRACE("\n");
 943     return ExtractIconA( hInstance, lpszExeFileName, nIconIndex );
 944 }
 945
 946 /*************************************************************************
 947  *             ExtractIconEx16   (SHELL.40)
 948  */
 949 HICON16 WINAPI ExtractIconEx16(
 950         LPCSTR lpszFile, INT16 nIconIndex, HICON16 *phiconLarge,
 951         HICON16 *phiconSmall, UINT16 nIcons
 952 ) {
 953     HICON       *ilarge,*ismall;
 954     UINT16      ret;
 955     int         i;
 956
 957     if (phiconLarge)
 958         ilarge = (HICON*)HeapAlloc(GetProcessHeap(),0,nIcons*sizeof(HICON));
 959     else
 960         ilarge = NULL;
 961     if (phiconSmall)
 962         ismall = (HICON*)HeapAlloc(GetProcessHeap(),0,nIcons*sizeof(HICON));
 963     else
 964         ismall = NULL;
 965     ret = ExtractIconExA(lpszFile,nIconIndex,ilarge,ismall,nIcons);
 966     if (ilarge) {
 967         for (i=0;i<nIcons;i++)
 968             phiconLarge[i]=ilarge[i];
 969         HeapFree(GetProcessHeap(),0,ilarge);
 970     }
 971     if (ismall) {
 972         for (i=0;i<nIcons;i++)
 973             phiconSmall[i]=ismall[i];
 974         HeapFree(GetProcessHeap(),0,ismall);
 975     }
 976     return ret;
 977 }
 978
 979 /*************************************************************************
 980  *                              ExtractAssociatedIcon   [SHELL.36]
 981  *
 982  * Return icon for given file (either from file itself or from associated
 983  * executable) and patch parameters if needed.
 984  */
 985 HICON WINAPI ExtractAssociatedIconA(HINSTANCE hInst, LPSTR lpIconPath, LPWORD lpiIcon)
 986 {       TRACE("\n");
 987         return ExtractAssociatedIcon16(hInst,lpIconPath,lpiIcon);
 988 }
 989
 990 HICON16 WINAPI ExtractAssociatedIcon16(HINSTANCE16 hInst, LPSTR lpIconPath, LPWORD lpiIcon)
 991 {       HICON16 hIcon;
 992
 993         TRACE("\n");
 994
 995         hIcon = ExtractIcon16(hInst, lpIconPath, *lpiIcon);
 996
 997         if( hIcon < 2 )
 998         { if( hIcon == 1 ) /* no icons found in given file */
 999           { char  tempPath[0x80];
1000             UINT16  uRet = FindExecutable16(lpIconPath,NULL,tempPath);
1001
1002             if( uRet > 32 && tempPath[0] )
1003             { strcpy(lpIconPath,tempPath);
1004               hIcon = ExtractIcon16(hInst, lpIconPath, *lpiIcon);
1005               if( hIcon > 2 )
1006                 return hIcon;
1007             }
1008             else hIcon = 0;
1009           }
1010
1011           if( hIcon == 1 )
1012             *lpiIcon = 2;   /* MSDOS icon - we found .exe but no icons in it */
1013           else
1014             *lpiIcon = 6;   /* generic icon - found nothing */
1015
1016           GetModuleFileName16(hInst, lpIconPath, 0x80);
1017           hIcon = LoadIcon16( hInst, MAKEINTRESOURCE16(*lpiIcon));
1018         }
1019         return hIcon;
1020 }
1021
1022 /*************************************************************************
1023  *                              FindEnvironmentString   [SHELL.38]
1024  *
1025  * Returns a pointer into the DOS environment... Ugh.
1026  */
1027 LPSTR SHELL_FindString(LPSTR lpEnv, LPCSTR entry)
1028 { UINT16 l;
1029
1030   TRACE("\n");
1031
1032   l = strlen(entry);
1033   for( ; *lpEnv ; lpEnv+=strlen(lpEnv)+1 )
1034   { if( lstrncmpiA(lpEnv, entry, l) )
1035       continue;
1036         if( !*(lpEnv+l) )
1037             return (lpEnv + l);                 /* empty entry */
1038         else if ( *(lpEnv+l)== '=' )
1039             return (lpEnv + l + 1);
1040     }
1041     return NULL;
1042 }
1043
1044 SEGPTR WINAPI FindEnvironmentString16(LPSTR str)
1045 { SEGPTR  spEnv;
1046   LPSTR lpEnv,lpString;
1047   TRACE("\n");
1048
1049   spEnv = GetDOSEnvironment16();
1050
1051   lpEnv = (LPSTR)PTR_SEG_TO_LIN(spEnv);
1052   lpString = (spEnv)?SHELL_FindString(lpEnv, str):NULL;
1053
1054     if( lpString )              /*  offset should be small enough */
1055         return spEnv + (lpString - lpEnv);
1056     return (SEGPTR)NULL;
1057 }
1058
1059 /*************************************************************************
1060  *                              DoEnvironmentSubst      [SHELL.37]
1061  *
1062  * Replace %KEYWORD% in the str with the value of variable KEYWORD
1063  * from "DOS" environment.
1064  */
1065 DWORD WINAPI DoEnvironmentSubst16(LPSTR str,WORD length)
1066 {
1067   LPSTR   lpEnv = (LPSTR)PTR_SEG_TO_LIN(GetDOSEnvironment16());
1068   LPSTR   lpBuffer = (LPSTR)HeapAlloc( GetProcessHeap(), 0, length);
1069   LPSTR   lpstr = str;
1070   LPSTR   lpbstr = lpBuffer;
1071
1072   CharToOemA(str,str);
1073
1074   TRACE("accept %s\n", str);
1075
1076   while( *lpstr && lpbstr - lpBuffer < length )
1077    {
1078      LPSTR lpend = lpstr;
1079
1080      if( *lpstr == '%' )
1081        {
1082           do { lpend++; } while( *lpend && *lpend != '%' );
1083           if( *lpend == '%' && lpend - lpstr > 1 )      /* found key */
1084             {
1085                LPSTR lpKey;
1086               *lpend = '\0';
1087                lpKey = SHELL_FindString(lpEnv, lpstr+1);
1088                if( lpKey )                              /* found key value */
1089                  {
1090                    int l = strlen(lpKey);
1091
1092                    if( l > length - (lpbstr - lpBuffer) - 1 )
1093                      {
1094            WARN("-- Env subst aborted - string too short\n");
1095                       *lpend = '%';
1096                        break;
1097                      }
1098                    strcpy(lpbstr, lpKey);
1099                    lpbstr += l;
1100                  }
1101                else break;
1102               *lpend = '%';
1103                lpstr = lpend + 1;
1104             }
1105           else break;                                   /* back off and whine */
1106
1107           continue;
1108        }
1109
1110      *lpbstr++ = *lpstr++;
1111    }
1112
1113  *lpbstr = '\0';
1114   if( lpstr - str == strlen(str) )
1115     {
1116       strncpy(str, lpBuffer, length);
1117       length = 1;
1118     }
1119   else
1120       length = 0;
1121
1122   TRACE("-- return %s\n", str);
1123
1124   OemToCharA(str,str);
1125   HeapFree( GetProcessHeap(), 0, lpBuffer);
1126
1127   /*  Return str length in the LOWORD
1128    *  and 1 in HIWORD if subst was successful.
1129    */
1130  return (DWORD)MAKELONG(strlen(str), length);
1131 }
1132
1133 /*************************************************************************
1134  *                              ShellHookProc           [SHELL.103]
1135  * System-wide WH_SHELL hook.
1136  */
1137 LRESULT WINAPI ShellHookProc16(INT16 code, WPARAM16 wParam, LPARAM lParam)
1138 {
1139     TRACE("%i, %04x, %08x\n", code, wParam,
1140                                                       (unsigned)lParam );
1141     if( SHELL_hHook && SHELL_hWnd )
1142     {
1143         UINT16  uMsg = 0;
1144         switch( code )
1145         {
1146             case HSHELL_WINDOWCREATED:          uMsg = uMsgWndCreated;   break;
1147             case HSHELL_WINDOWDESTROYED:        uMsg = uMsgWndDestroyed; break;
1148             case HSHELL_ACTIVATESHELLWINDOW:    uMsg = uMsgShellActivate;
1149         }
1150         PostMessage16( SHELL_hWnd, uMsg, wParam, 0 );
1151     }
1152     return CallNextHookEx16( WH_SHELL, code, wParam, lParam );
1153 }
1154
1155 /*************************************************************************
1156  *                              RegisterShellHook       [SHELL.102]
1157  */
1158 BOOL WINAPI RegisterShellHook16(HWND16 hWnd, UINT16 uAction)
1159 {
1160     TRACE("%04x [%u]\n", hWnd, uAction );
1161
1162     switch( uAction )
1163     {
1164     case 2:  /* register hWnd as a shell window */
1165         if( !SHELL_hHook )
1166         {
1167             HMODULE16 hShell = GetModuleHandle16( "SHELL" );
1168             HOOKPROC16 hookProc = (HOOKPROC16)NE_GetEntryPoint( hShell, 103 );
1169             SHELL_hHook = SetWindowsHookEx16( WH_SHELL, hookProc, hShell, 0 );
1170             if ( SHELL_hHook )
1171             {
1172                 uMsgWndCreated = RegisterWindowMessageA( lpstrMsgWndCreated );
1173                 uMsgWndDestroyed = RegisterWindowMessageA( lpstrMsgWndDestroyed );
1174                 uMsgShellActivate = RegisterWindowMessageA( lpstrMsgShellActivate );
1175             }
1176             else
1177                 WARN("-- unable to install ShellHookProc()!\n");
1178         }
1179
1180         if ( SHELL_hHook )
1181             return ((SHELL_hWnd = hWnd) != 0);
1182         break;
1183
1184     default:
1185         WARN("-- unknown code %i\n", uAction );
1186         SHELL_hWnd = 0; /* just in case */
1187     }
1188     return FALSE;
1189 }