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   1 /*
   2  *                              Shell Library Functions
   3  *
   4  * Copyright 1998 Marcus Meissner
   5  * Copyright 2000 Juergen Schmied
   6  * Copyright 2002 Eric Pouech
   7  *
   8  * This library is free software; you can redistribute it and/or
   9  * modify it under the terms of the GNU Lesser General Public
  10  * License as published by the Free Software Foundation; either
  11  * version 2.1 of the License, or (at your option) any later version.
  12  *
  13  * This library is distributed in the hope that it will be useful,
  14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  16  * Lesser General Public License for more details.
  17  *
  18  * You should have received a copy of the GNU Lesser General Public
  19  * License along with this library; if not, write to the Free Software
  20  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  21  */
  22
  23 #include "config.h"
  24 #include "wine/port.h"
  25
  26 #include <stdarg.h>
  27 #include <stdlib.h>
  28 #include <string.h>
  29 #ifdef HAVE_UNISTD_H
  30 # include <unistd.h>
  31 #endif
  32 #include <ctype.h>
  33
  34 #include "windef.h"
  35 #include "winbase.h"
  36 #include "winreg.h"
  37 #include "wownt32.h"
  38 #include "shellapi.h"
  39 #include "winuser.h"
  40 #include "wingdi.h"
  41 #include "shlobj.h"
  42 #include "shlwapi.h"
  43
  44 #include "wine/winbase16.h"
  45 #include "wine/winuser16.h"
  46
  47 #include "wine/debug.h"
  48
  49 WINE_DEFAULT_DEBUG_CHANNEL(shell);
  50
  51 extern HINSTANCE WINAPI WOWShellExecute(HWND hWnd, LPCSTR lpOperation,LPCSTR lpFile,
  52                                         LPCSTR lpParameters,LPCSTR lpDirectory,
  53                                         INT iShowCmd, void *callback);
  54
  55 #define HICON_16(h32)           (LOWORD(h32))
  56 #define HINSTANCE_32(h16)       ((HINSTANCE)(ULONG_PTR)(h16))
  57 #define HINSTANCE_16(h32)       (LOWORD(h32))
  58
  59 typedef struct {     /* structure for dropped files */
  60  WORD     wSize;
  61  POINT16  ptMousePos;
  62  BOOL16   fInNonClientArea;
  63  /* memory block with filenames follows */
  64 } DROPFILESTRUCT16, *LPDROPFILESTRUCT16;
  65
  66 static const char lpstrMsgWndCreated[] = "OTHERWINDOWCREATED";
  67 static const char lpstrMsgWndDestroyed[] = "OTHERWINDOWDESTROYED";
  68 static const char lpstrMsgShellActivate[] = "ACTIVATESHELLWINDOW";
  69
  70 static HWND     SHELL_hWnd = 0;
  71 static HHOOK    SHELL_hHook = 0;
  72 static UINT     uMsgWndCreated = 0;
  73 static UINT     uMsgWndDestroyed = 0;
  74 static UINT     uMsgShellActivate = 0;
  75
  76 static HICON convert_icon_to_32( HICON16 icon16 )
  77 {
  78     CURSORICONINFO *info = GlobalLock16( icon16 );
  79     void *and_bits = info + 1;
  80     void *xor_bits = (BYTE *)and_bits + info->nHeight * 2 * ((info->nWidth + 15) / 16);
  81     HICON ret = CreateIcon( 0, info->nWidth, info->nHeight, info->bPlanes, info->bBitsPerPixel,
  82                             and_bits, xor_bits );
  83     GlobalUnlock16( icon16 );
  84     return ret;
  85 }
  86
  87 /***********************************************************************
  88  * DllEntryPoint [SHELL.101]
  89  *
  90  * Initialization code for shell.dll. Automatically loads the
  91  * 32-bit shell32.dll to allow thunking up to 32-bit code.
  92  *
  93  * RETURNS
  94  *  Success: TRUE. Initialization completed successfully.
  95  *  Failure: FALSE.
  96  */
  97 BOOL WINAPI SHELL_DllEntryPoint(DWORD Reason, HINSTANCE16 hInst,
  98                                 WORD ds, WORD HeapSize, DWORD res1, WORD res2)
  99 {
 100     return TRUE;
 101 }
 102
 103 /*************************************************************************
 104  *                              DragAcceptFiles         [SHELL.9]
 105  */
 106 void WINAPI DragAcceptFiles16(HWND16 hWnd, BOOL16 b)
 107 {
 108   DragAcceptFiles(HWND_32(hWnd), b);
 109 }
 110
 111 /*************************************************************************
 112  *                              DragQueryFile           [SHELL.11]
 113  */
 114 UINT16 WINAPI DragQueryFile16(
 115         HDROP16 hDrop,
 116         WORD wFile,
 117         LPSTR lpszFile,
 118         WORD wLength)
 119 {
 120         LPSTR lpDrop;
 121         UINT i = 0;
 122         LPDROPFILESTRUCT16 lpDropFileStruct = (LPDROPFILESTRUCT16) GlobalLock16(hDrop);
 123
 124         TRACE("(%04x, %x, %p, %u)\n", hDrop,wFile,lpszFile,wLength);
 125
 126         if(!lpDropFileStruct) goto end;
 127
 128         lpDrop = (LPSTR) lpDropFileStruct + lpDropFileStruct->wSize;
 129
 130         while (i++ < wFile)
 131         {
 132           while (*lpDrop++); /* skip filename */
 133           if (!*lpDrop)
 134           {
 135             i = (wFile == 0xFFFF) ? i : 0;
 136             goto end;
 137           }
 138         }
 139
 140         i = strlen(lpDrop);
 141         if (!lpszFile ) goto end;   /* needed buffer size */
 142         lstrcpynA (lpszFile, lpDrop, wLength);
 143 end:
 144         GlobalUnlock16(hDrop);
 145         return i;
 146 }
 147
 148 /*************************************************************************
 149  *                              DragFinish              [SHELL.12]
 150  */
 151 void WINAPI DragFinish16(HDROP16 h)
 152 {
 153     TRACE("\n");
 154     GlobalFree16(h);
 155 }
 156
 157
 158 /*************************************************************************
 159  *                              DragQueryPoint          [SHELL.13]
 160  */
 161 BOOL16 WINAPI DragQueryPoint16(HDROP16 hDrop, POINT16 *p)
 162 {
 163   LPDROPFILESTRUCT16 lpDropFileStruct;
 164   BOOL16           bRet;
 165   TRACE("\n");
 166   lpDropFileStruct = (LPDROPFILESTRUCT16) GlobalLock16(hDrop);
 167
 168   memcpy(p,&lpDropFileStruct->ptMousePos,sizeof(POINT16));
 169   bRet = lpDropFileStruct->fInNonClientArea;
 170
 171   GlobalUnlock16(hDrop);
 172   return bRet;
 173 }
 174
 175 /*************************************************************************
 176  *             FindExecutable   (SHELL.21)
 177  */
 178 HINSTANCE16 WINAPI FindExecutable16( LPCSTR lpFile, LPCSTR lpDirectory,
 179                                      LPSTR lpResult )
 180 { return HINSTANCE_16(FindExecutableA( lpFile, lpDirectory, lpResult ));
 181 }
 182
 183 /*************************************************************************
 184  *             AboutDlgProc   (SHELL.33)
 185  */
 186 BOOL16 WINAPI AboutDlgProc16( HWND16 hWnd, UINT16 msg, WPARAM16 wParam,
 187                                LPARAM lParam )
 188 {
 189     FIXME( "stub\n" );
 190     return FALSE;
 191 }
 192
 193
 194 /*************************************************************************
 195  *             ShellAbout   (SHELL.22)
 196  */
 197 BOOL16 WINAPI ShellAbout16( HWND16 hWnd, LPCSTR szApp, LPCSTR szOtherStuff, HICON16 icon16 )
 198 {
 199     HICON icon = convert_icon_to_32( icon16 );
 200     BOOL ret = ShellAboutA( HWND_32(hWnd), szApp, szOtherStuff, icon );
 201     DestroyIcon( icon );
 202     return ret;
 203 }
 204
 205 /*************************************************************************
 206  *                      InternalExtractIcon             [SHELL.39]
 207  *
 208  * This abortion is called directly by Progman
 209  */
 210 HGLOBAL16 WINAPI InternalExtractIcon16(HINSTANCE16 hInstance,
 211                                      LPCSTR lpszExeFileName, UINT16 nIconIndex, WORD n )
 212 {
 213     HGLOBAL16 hRet = 0;
 214     HICON16 *RetPtr = NULL;
 215
 216         TRACE("(%04x,file %s,start %d,extract %d\n",
 217                        hInstance, lpszExeFileName, nIconIndex, n);
 218
 219         if (!n)
 220           return 0;
 221
 222         hRet = GlobalAlloc16(GMEM_FIXED | GMEM_ZEROINIT, sizeof(*RetPtr) * n);
 223         RetPtr = GlobalLock16(hRet);
 224
 225         if (nIconIndex == (UINT16)-1)  /* get number of icons */
 226         {
 227           RetPtr[0] = PrivateExtractIconsA(lpszExeFileName, 0, 0, 0, NULL, NULL, 0, LR_DEFAULTCOLOR);
 228         }
 229         else
 230         {
 231           UINT ret;
 232           HICON *icons;
 233
 234           icons = HeapAlloc(GetProcessHeap(), 0, n * sizeof(*icons));
 235           ret = PrivateExtractIconsA(lpszExeFileName, nIconIndex,
 236                                      GetSystemMetrics(SM_CXICON),
 237                                      GetSystemMetrics(SM_CYICON),
 238                                      icons, NULL, n, LR_DEFAULTCOLOR);
 239           if ((ret != 0xffffffff) && ret)
 240           {
 241             int i;
 242             for (i = 0; i < n; i++) RetPtr[i] = HICON_16(icons[i]);
 243           }
 244           else
 245           {
 246             GlobalFree16(hRet);
 247             hRet = 0;
 248           }
 249           HeapFree(GetProcessHeap(), 0, icons);
 250         }
 251         return hRet;
 252 }
 253
 254 /*************************************************************************
 255  *             ExtractIcon   (SHELL.34)
 256  */
 257 HICON16 WINAPI ExtractIcon16( HINSTANCE16 hInstance, LPCSTR lpszExeFileName,
 258         UINT16 nIconIndex )
 259 {   TRACE("\n");
 260     return HICON_16(ExtractIconA(HINSTANCE_32(hInstance), lpszExeFileName, nIconIndex));
 261 }
 262
 263 /*************************************************************************
 264  *             ExtractIconEx   (SHELL.40)
 265  */
 266 HICON16 WINAPI ExtractIconEx16(
 267         LPCSTR lpszFile, INT16 nIconIndex, HICON16 *phiconLarge,
 268         HICON16 *phiconSmall, UINT16 nIcons
 269 ) {
 270     HICON       *ilarge,*ismall;
 271     UINT16      ret;
 272     int         i;
 273
 274     if (phiconLarge)
 275         ilarge = HeapAlloc(GetProcessHeap(),0,nIcons*sizeof(HICON));
 276     else
 277         ilarge = NULL;
 278     if (phiconSmall)
 279         ismall = HeapAlloc(GetProcessHeap(),0,nIcons*sizeof(HICON));
 280     else
 281         ismall = NULL;
 282     ret = HICON_16(ExtractIconExA(lpszFile,nIconIndex,ilarge,ismall,nIcons));
 283     if (ilarge) {
 284         for (i=0;i<nIcons;i++)
 285             phiconLarge[i]=HICON_16(ilarge[i]);
 286         HeapFree(GetProcessHeap(),0,ilarge);
 287     }
 288     if (ismall) {
 289         for (i=0;i<nIcons;i++)
 290             phiconSmall[i]=HICON_16(ismall[i]);
 291         HeapFree(GetProcessHeap(),0,ismall);
 292     }
 293     return ret;
 294 }
 295
 296 /*************************************************************************
 297  *                              ExtractAssociatedIcon   [SHELL.36]
 298  *
 299  * Return icon for given file (either from file itself or from associated
 300  * executable) and patch parameters if needed.
 301  */
 302 HICON16 WINAPI ExtractAssociatedIcon16(HINSTANCE16 hInst, LPSTR lpIconPath, LPWORD lpiIcon)
 303 {
 304     return HICON_16(ExtractAssociatedIconA(HINSTANCE_32(hInst), lpIconPath,
 305                     lpiIcon));
 306 }
 307
 308 /*************************************************************************
 309  *                              FindEnvironmentString   [SHELL.38]
 310  *
 311  * Returns a pointer into the DOS environment... Ugh.
 312  */
 313 static LPSTR SHELL_FindString(LPSTR lpEnv, LPCSTR entry)
 314 { UINT16 l;
 315
 316   TRACE("\n");
 317
 318   l = strlen(entry);
 319   for( ; *lpEnv ; lpEnv+=strlen(lpEnv)+1 )
 320   { if( strncasecmp(lpEnv, entry, l) )
 321       continue;
 322         if( !*(lpEnv+l) )
 323             return (lpEnv + l);                 /* empty entry */
 324         else if ( *(lpEnv+l)== '=' )
 325             return (lpEnv + l + 1);
 326     }
 327     return NULL;
 328 }
 329
 330 /**********************************************************************/
 331
 332 SEGPTR WINAPI FindEnvironmentString16(LPCSTR str)
 333 { SEGPTR  spEnv;
 334   LPSTR lpEnv,lpString;
 335   TRACE("\n");
 336
 337   spEnv = GetDOSEnvironment16();
 338
 339   lpEnv = MapSL(spEnv);
 340   lpString = (spEnv)?SHELL_FindString(lpEnv, str):NULL;
 341
 342     if( lpString )              /*  offset should be small enough */
 343         return spEnv + (lpString - lpEnv);
 344     return 0;
 345 }
 346
 347 /*************************************************************************
 348  *                              DoEnvironmentSubst      [SHELL.37]
 349  *
 350  * Replace %KEYWORD% in the str with the value of variable KEYWORD
 351  * from "DOS" environment. If it is not found the %KEYWORD% is left
 352  * intact. If the buffer is too small, str is not modified.
 353  *
 354  * PARAMS
 355  *  str        [I] '\0' terminated string with %keyword%.
 356  *             [O] '\0' terminated string with %keyword% substituted.
 357  *  length     [I] size of str.
 358  *
 359  * RETURNS
 360  *  str length in the LOWORD and 1 in HIWORD if subst was successful.
 361  */
 362 DWORD WINAPI DoEnvironmentSubst16(LPSTR str,WORD length)
 363 {
 364   LPSTR   lpEnv = MapSL(GetDOSEnvironment16());
 365   LPSTR   lpstr = str;
 366   LPSTR   lpend;
 367   LPSTR   lpBuffer = HeapAlloc( GetProcessHeap(), 0, length);
 368   WORD    bufCnt = 0;
 369   WORD    envKeyLen;
 370   LPSTR   lpKey;
 371   WORD    retStatus = 0;
 372   WORD    retLength = length;
 373
 374   CharToOemA(str,str);
 375
 376   TRACE("accept %s\n", str);
 377
 378   while( *lpstr && bufCnt <= length - 1 ) {
 379      if ( *lpstr != '%' ) {
 380         lpBuffer[bufCnt++] = *lpstr++;
 381         continue;
 382      }
 383
 384      for( lpend = lpstr + 1; *lpend && *lpend != '%'; lpend++) /**/;
 385
 386      envKeyLen = lpend - lpstr - 1;
 387      if( *lpend != '%' || envKeyLen == 0)
 388         goto err; /* "%\0" or "%%" found; back off and whine */
 389
 390      *lpend = '\0';
 391      lpKey = SHELL_FindString(lpEnv, lpstr+1);
 392      *lpend = '%';
 393      if( lpKey ) {
 394          int l = strlen(lpKey);
 395
 396          if( bufCnt + l > length - 1 )
 397                 goto err;
 398
 399         memcpy(lpBuffer + bufCnt, lpKey, l);
 400         bufCnt += l;
 401      } else { /* Keyword not found; Leave the %KEYWORD% intact */
 402         if( bufCnt + envKeyLen + 2 > length - 1 )
 403             goto err;
 404
 405          memcpy(lpBuffer + bufCnt, lpstr, envKeyLen + 2);
 406         bufCnt += envKeyLen + 2;
 407      }
 408
 409      lpstr = lpend + 1;
 410   }
 411
 412   if (!*lpstr && bufCnt <= length - 1) {
 413       memcpy(str,lpBuffer, bufCnt);
 414       str[bufCnt] = '\0';
 415       retLength = bufCnt + 1;
 416       retStatus = 1;
 417   }
 418
 419   err:
 420   if (!retStatus)
 421       WARN("-- Env subst aborted - string too short or invalid input\n");
 422   TRACE("-- return %s\n", str);
 423
 424   OemToCharA(str,str);
 425   HeapFree( GetProcessHeap(), 0, lpBuffer);
 426
 427   return (DWORD)MAKELONG(retLength, retStatus);
 428 }
 429
 430 /*************************************************************************
 431  *                              SHELL_HookProc
 432  *
 433  * 32-bit version of the system-wide WH_SHELL hook.
 434  */
 435 static LRESULT WINAPI SHELL_HookProc(INT code, WPARAM wParam, LPARAM lParam)
 436 {
 437     TRACE("%i, %lx, %08lx\n", code, wParam, lParam );
 438
 439     if (SHELL_hWnd)
 440     {
 441         switch( code )
 442         {
 443         case HSHELL_WINDOWCREATED:
 444             PostMessageA( SHELL_hWnd, uMsgWndCreated, wParam, 0 );
 445             break;
 446         case HSHELL_WINDOWDESTROYED:
 447             PostMessageA( SHELL_hWnd, uMsgWndDestroyed, wParam, 0 );
 448             break;
 449         case HSHELL_ACTIVATESHELLWINDOW:
 450             PostMessageA( SHELL_hWnd, uMsgShellActivate, wParam, 0 );
 451             break;
 452         }
 453     }
 454     return CallNextHookEx( SHELL_hHook, code, wParam, lParam );
 455 }
 456
 457 /*************************************************************************
 458  *                              ShellHookProc           [SHELL.103]
 459  * System-wide WH_SHELL hook.
 460  */
 461 LRESULT WINAPI ShellHookProc16(INT16 code, WPARAM16 wParam, LPARAM lParam)
 462 {
 463     return SHELL_HookProc( code, wParam, lParam );
 464 }
 465
 466 /*************************************************************************
 467  *                              RegisterShellHook       [SHELL.102]
 468  */
 469 BOOL WINAPI RegisterShellHook16(HWND16 hWnd, UINT16 uAction)
 470 {
 471     TRACE("%04x [%u]\n", hWnd, uAction );
 472
 473     switch( uAction )
 474     {
 475     case 2:  /* register hWnd as a shell window */
 476         if( !SHELL_hHook )
 477         {
 478             SHELL_hHook = SetWindowsHookExA( WH_SHELL, SHELL_HookProc,
 479                                              GetModuleHandleA("shell32.dll"), 0 );
 480             if ( SHELL_hHook )
 481             {
 482                 uMsgWndCreated = RegisterWindowMessageA( lpstrMsgWndCreated );
 483                 uMsgWndDestroyed = RegisterWindowMessageA( lpstrMsgWndDestroyed );
 484                 uMsgShellActivate = RegisterWindowMessageA( lpstrMsgShellActivate );
 485             }
 486             else
 487                 WARN("-- unable to install ShellHookProc()!\n");
 488         }
 489
 490         if ( SHELL_hHook )
 491             return ((SHELL_hWnd = HWND_32(hWnd)) != 0);
 492         break;
 493
 494     default:
 495         WARN("-- unknown code %i\n", uAction );
 496         SHELL_hWnd = 0; /* just in case */
 497     }
 498     return FALSE;
 499 }
 500
 501
 502 /***********************************************************************
 503  *           DriveType   (SHELL.262)
 504  */
 505 UINT16 WINAPI DriveType16( UINT16 drive )
 506 {
 507     UINT ret;
 508     char path[] = "A:\\";
 509     path[0] += drive;
 510     ret = GetDriveTypeA(path);
 511     switch(ret)  /* some values are not supported in Win16 */
 512     {
 513     case DRIVE_CDROM:
 514         ret = DRIVE_REMOTE;
 515         break;
 516     case DRIVE_NO_ROOT_DIR:
 517         ret = DRIVE_UNKNOWN;
 518         break;
 519     }
 520     return ret;
 521 }
 522
 523
 524 /* 0 and 1 are valid rootkeys in win16 shell.dll and are used by
 525  * some programs. Do not remove those cases. -MM
 526  */
 527 static inline void fix_win16_hkey( HKEY *hkey )
 528 {
 529     if (*hkey == 0 || *hkey == (HKEY)1) *hkey = HKEY_CLASSES_ROOT;
 530 }
 531
 532 /******************************************************************************
 533  *           RegOpenKey   [SHELL.1]
 534  */
 535 DWORD WINAPI RegOpenKey16( HKEY hkey, LPCSTR name, PHKEY retkey )
 536 {
 537     fix_win16_hkey( &hkey );
 538     return RegOpenKeyA( hkey, name, retkey );
 539 }
 540
 541 /******************************************************************************
 542  *           RegCreateKey   [SHELL.2]
 543  */
 544 DWORD WINAPI RegCreateKey16( HKEY hkey, LPCSTR name, PHKEY retkey )
 545 {
 546     fix_win16_hkey( &hkey );
 547     return RegCreateKeyA( hkey, name, retkey );
 548 }
 549
 550 /******************************************************************************
 551  *           RegCloseKey   [SHELL.3]
 552  */
 553 DWORD WINAPI RegCloseKey16( HKEY hkey )
 554 {
 555     fix_win16_hkey( &hkey );
 556     return RegCloseKey( hkey );
 557 }
 558
 559 /******************************************************************************
 560  *           RegDeleteKey   [SHELL.4]
 561  */
 562 DWORD WINAPI RegDeleteKey16( HKEY hkey, LPCSTR name )
 563 {
 564     fix_win16_hkey( &hkey );
 565     return RegDeleteKeyA( hkey, name );
 566 }
 567
 568 /******************************************************************************
 569  *           RegSetValue   [SHELL.5]
 570  */
 571 DWORD WINAPI RegSetValue16( HKEY hkey, LPCSTR name, DWORD type, LPCSTR data, DWORD count )
 572 {
 573     fix_win16_hkey( &hkey );
 574     return RegSetValueA( hkey, name, type, data, count );
 575 }
 576
 577 /******************************************************************************
 578  *           RegQueryValue   [SHELL.6]
 579  *
 580  * NOTES
 581  *    Is this HACK still applicable?
 582  *
 583  * HACK
 584  *    The 16bit RegQueryValue doesn't handle selectorblocks anyway, so we just
 585  *    mask out the high 16 bit.  This (not so much incidentally) hopefully fixes
 586  *    Aldus FH4)
 587  */
 588 DWORD WINAPI RegQueryValue16( HKEY hkey, LPCSTR name, LPSTR data, LPDWORD count
 589 )
 590 {
 591     fix_win16_hkey( &hkey );
 592     if (count) *count &= 0xffff;
 593     return RegQueryValueA( hkey, name, data, (LONG*) count );
 594 }
 595
 596 /******************************************************************************
 597  *           RegEnumKey   [SHELL.7]
 598  */
 599 DWORD WINAPI RegEnumKey16( HKEY hkey, DWORD index, LPSTR name, DWORD name_len )
 600 {
 601     fix_win16_hkey( &hkey );
 602     return RegEnumKeyA( hkey, index, name, name_len );
 603 }
 604
 605 /*************************************************************************
 606  *           SHELL_Execute16 [Internal]
 607  */
 608 static UINT_PTR SHELL_Execute16(const WCHAR *lpCmd, WCHAR *env, BOOL shWait,
 609                             const SHELLEXECUTEINFOW *psei, LPSHELLEXECUTEINFOW psei_out)
 610 {
 611     UINT ret;
 612     char sCmd[MAX_PATH];
 613     WideCharToMultiByte(CP_ACP, 0, lpCmd, -1, sCmd, MAX_PATH, NULL, NULL);
 614     ret = WinExec16(sCmd, (UINT16)psei->nShow);
 615     psei_out->hInstApp = HINSTANCE_32(ret);
 616     return ret;
 617 }
 618
 619 /*************************************************************************
 620  *                              ShellExecute            [SHELL.20]
 621  */
 622 HINSTANCE16 WINAPI ShellExecute16( HWND16 hWnd, LPCSTR lpOperation,
 623                                    LPCSTR lpFile, LPCSTR lpParameters,
 624                                    LPCSTR lpDirectory, INT16 iShowCmd )
 625 {
 626     return HINSTANCE_16( WOWShellExecute( HWND_32(hWnd), lpOperation, lpFile, lpParameters,
 627                                           lpDirectory, iShowCmd, SHELL_Execute16 ));
 628 }
 629
 630
 631 /*************************************************************************
 632  * RunDLL_CallEntry16
 633  *
 634  * Only exported from shell32 on Windows, probably imported
 635  * from shell through the 16/32 thunks.
 636  */
 637 void WINAPI RunDLL_CallEntry16( DWORD proc, HWND hwnd, HINSTANCE inst, LPCSTR cmdline, INT cmdshow )
 638 {
 639     WORD args[5];
 640     SEGPTR cmdline_seg;
 641
 642     TRACE( "proc %x hwnd %p inst %p cmdline %s cmdshow %d\n",
 643            proc, hwnd, inst, debugstr_a(cmdline), cmdshow );
 644
 645     cmdline_seg = MapLS( cmdline );
 646     args[4] = HWND_16(hwnd);
 647     args[3] = MapHModuleLS(inst);
 648     args[2] = SELECTOROF(cmdline_seg);
 649     args[1] = OFFSETOF(cmdline_seg);
 650     args[0] = cmdshow;
 651     WOWCallback16Ex( proc, WCB16_PASCAL, sizeof(args), args, NULL );
 652     UnMapLS( cmdline_seg );
 653 }