dlls/shell32/shell.c

   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 "shell32_main.h"
  46
  47 #include "wine/debug.h"
  48
  49 WINE_DEFAULT_DEBUG_CHANNEL(shell);
  50
  51
  52 typedef struct {     /* structure for dropped files */
  53  WORD     wSize;
  54  POINT16  ptMousePos;
  55  BOOL16   fInNonClientArea;
  56  /* memory block with filenames follows */
  57 } DROPFILESTRUCT16, *LPDROPFILESTRUCT16;
  58
  59 static const char lpstrMsgWndCreated[] = "OTHERWINDOWCREATED";
  60 static const char lpstrMsgWndDestroyed[] = "OTHERWINDOWDESTROYED";
  61 static const char lpstrMsgShellActivate[] = "ACTIVATESHELLWINDOW";
  62
  63 static HWND     SHELL_hWnd = 0;
  64 static HHOOK    SHELL_hHook = 0;
  65 static UINT     uMsgWndCreated = 0;
  66 static UINT     uMsgWndDestroyed = 0;
  67 static UINT     uMsgShellActivate = 0;
  68
  69 /***********************************************************************
  70  * DllEntryPoint [SHELL.101]
  71  *
  72  * Initialization code for shell.dll. Automatically loads the
  73  * 32-bit shell32.dll to allow thunking up to 32-bit code.
  74  *
  75  * RETURNS
  76  *  Success: TRUE. Initialization completed successfully.
  77  *  Failure: FALSE.
  78  */
  79 BOOL WINAPI SHELL_DllEntryPoint(DWORD Reason, HINSTANCE16 hInst,
  80                                 WORD ds, WORD HeapSize, DWORD res1, WORD res2)
  81 {
  82     return TRUE;
  83 }
  84
  85 /*************************************************************************
  86  *                              DragAcceptFiles         [SHELL.9]
  87  */
  88 void WINAPI DragAcceptFiles16(HWND16 hWnd, BOOL16 b)
  89 {
  90   DragAcceptFiles(HWND_32(hWnd), b);
  91 }
  92
  93 /*************************************************************************
  94  *                              DragQueryFile           [SHELL.11]
  95  */
  96 UINT16 WINAPI DragQueryFile16(
  97         HDROP16 hDrop,
  98         WORD wFile,
  99         LPSTR lpszFile,
 100         WORD wLength)
 101 {
 102         LPSTR lpDrop;
 103         UINT i = 0;
 104         LPDROPFILESTRUCT16 lpDropFileStruct = (LPDROPFILESTRUCT16) GlobalLock16(hDrop);
 105
 106         TRACE("(%04x, %x, %p, %u)\n", hDrop,wFile,lpszFile,wLength);
 107
 108         if(!lpDropFileStruct) goto end;
 109
 110         lpDrop = (LPSTR) lpDropFileStruct + lpDropFileStruct->wSize;
 111
 112         while (i++ < wFile)
 113         {
 114           while (*lpDrop++); /* skip filename */
 115           if (!*lpDrop)
 116           {
 117             i = (wFile == 0xFFFF) ? i : 0;
 118             goto end;
 119           }
 120         }
 121
 122         i = strlen(lpDrop);
 123         if (!lpszFile ) goto end;   /* needed buffer size */
 124         lstrcpynA (lpszFile, lpDrop, wLength);
 125 end:
 126         GlobalUnlock16(hDrop);
 127         return i;
 128 }
 129
 130 /*************************************************************************
 131  *                              DragFinish              [SHELL.12]
 132  */
 133 void WINAPI DragFinish16(HDROP16 h)
 134 {
 135     TRACE("\n");
 136     GlobalFree16((HGLOBAL16)h);
 137 }
 138
 139
 140 /*************************************************************************
 141  *                              DragQueryPoint          [SHELL.13]
 142  */
 143 BOOL16 WINAPI DragQueryPoint16(HDROP16 hDrop, POINT16 *p)
 144 {
 145   LPDROPFILESTRUCT16 lpDropFileStruct;
 146   BOOL16           bRet;
 147   TRACE("\n");
 148   lpDropFileStruct = (LPDROPFILESTRUCT16) GlobalLock16(hDrop);
 149
 150   memcpy(p,&lpDropFileStruct->ptMousePos,sizeof(POINT16));
 151   bRet = lpDropFileStruct->fInNonClientArea;
 152
 153   GlobalUnlock16(hDrop);
 154   return bRet;
 155 }
 156
 157 /*************************************************************************
 158  *             FindExecutable   (SHELL.21)
 159  */
 160 HINSTANCE16 WINAPI FindExecutable16( LPCSTR lpFile, LPCSTR lpDirectory,
 161                                      LPSTR lpResult )
 162 { return HINSTANCE_16(FindExecutableA( lpFile, lpDirectory, lpResult ));
 163 }
 164
 165 /*************************************************************************
 166  *             AboutDlgProc   (SHELL.33)
 167  */
 168 BOOL16 WINAPI AboutDlgProc16( HWND16 hWnd, UINT16 msg, WPARAM16 wParam,
 169                                LPARAM lParam )
 170 { return (BOOL16)AboutDlgProc( HWND_32(hWnd), msg, wParam, lParam );
 171 }
 172
 173
 174 /*************************************************************************
 175  *             ShellAbout   (SHELL.22)
 176  */
 177 BOOL16 WINAPI ShellAbout16( HWND16 hWnd, LPCSTR szApp, LPCSTR szOtherStuff,
 178                             HICON16 hIcon )
 179 { return ShellAboutA( HWND_32(hWnd), szApp, szOtherStuff, HICON_32(hIcon) );
 180 }
 181
 182 /*************************************************************************
 183  *                      InternalExtractIcon             [SHELL.39]
 184  *
 185  * This abortion is called directly by Progman
 186  */
 187 HGLOBAL16 WINAPI InternalExtractIcon16(HINSTANCE16 hInstance,
 188                                      LPCSTR lpszExeFileName, UINT16 nIconIndex, WORD n )
 189 {
 190     HGLOBAL16 hRet = 0;
 191     HICON16 *RetPtr = NULL;
 192     OFSTRUCT ofs;
 193
 194         TRACE("(%04x,file %s,start %d,extract %d\n",
 195                        hInstance, lpszExeFileName, nIconIndex, n);
 196
 197         if (!n)
 198           return 0;
 199
 200         hRet = GlobalAlloc16(GMEM_FIXED | GMEM_ZEROINIT, sizeof(*RetPtr) * n);
 201         RetPtr = (HICON16*)GlobalLock16(hRet);
 202
 203         if (nIconIndex == (UINT16)-1)  /* get number of icons */
 204         {
 205           RetPtr[0] = PrivateExtractIconsA(ofs.szPathName, 0, 0, 0, NULL, NULL, 0, LR_DEFAULTCOLOR);
 206         }
 207         else
 208         {
 209           UINT ret;
 210           HICON *icons;
 211
 212           icons = HeapAlloc(GetProcessHeap(), 0, n * sizeof(*icons));
 213           ret = PrivateExtractIconsA(ofs.szPathName, nIconIndex,
 214                                      GetSystemMetrics(SM_CXICON),
 215                                      GetSystemMetrics(SM_CYICON),
 216                                      icons, NULL, n, LR_DEFAULTCOLOR);
 217           if ((ret != 0xffffffff) && ret)
 218           {
 219             int i;
 220             for (i = 0; i < n; i++) RetPtr[i] = HICON_16(icons[i]);
 221           }
 222           else
 223           {
 224             GlobalFree16(hRet);
 225             hRet = 0;
 226           }
 227           HeapFree(GetProcessHeap(), 0, icons);
 228         }
 229         return hRet;
 230 }
 231
 232 /*************************************************************************
 233  *             ExtractIcon   (SHELL.34)
 234  */
 235 HICON16 WINAPI ExtractIcon16( HINSTANCE16 hInstance, LPCSTR lpszExeFileName,
 236         UINT16 nIconIndex )
 237 {   TRACE("\n");
 238     return HICON_16(ExtractIconA(HINSTANCE_32(hInstance), lpszExeFileName, nIconIndex));
 239 }
 240
 241 /*************************************************************************
 242  *             ExtractIconEx   (SHELL.40)
 243  */
 244 HICON16 WINAPI ExtractIconEx16(
 245         LPCSTR lpszFile, INT16 nIconIndex, HICON16 *phiconLarge,
 246         HICON16 *phiconSmall, UINT16 nIcons
 247 ) {
 248     HICON       *ilarge,*ismall;
 249     UINT16      ret;
 250     int         i;
 251
 252     if (phiconLarge)
 253         ilarge = HeapAlloc(GetProcessHeap(),0,nIcons*sizeof(HICON));
 254     else
 255         ilarge = NULL;
 256     if (phiconSmall)
 257         ismall = HeapAlloc(GetProcessHeap(),0,nIcons*sizeof(HICON));
 258     else
 259         ismall = NULL;
 260     ret = HICON_16(ExtractIconExA(lpszFile,nIconIndex,ilarge,ismall,nIcons));
 261     if (ilarge) {
 262         for (i=0;i<nIcons;i++)
 263             phiconLarge[i]=HICON_16(ilarge[i]);
 264         HeapFree(GetProcessHeap(),0,ilarge);
 265     }
 266     if (ismall) {
 267         for (i=0;i<nIcons;i++)
 268             phiconSmall[i]=HICON_16(ismall[i]);
 269         HeapFree(GetProcessHeap(),0,ismall);
 270     }
 271     return ret;
 272 }
 273
 274 /*************************************************************************
 275  *                              ExtractAssociatedIcon   [SHELL.36]
 276  *
 277  * Return icon for given file (either from file itself or from associated
 278  * executable) and patch parameters if needed.
 279  */
 280 HICON16 WINAPI ExtractAssociatedIcon16(HINSTANCE16 hInst, LPSTR lpIconPath, LPWORD lpiIcon)
 281 {
 282     return HICON_16(ExtractAssociatedIconA(HINSTANCE_32(hInst), lpIconPath,
 283                     lpiIcon));
 284 }
 285
 286 /*************************************************************************
 287  *                              FindEnvironmentString   [SHELL.38]
 288  *
 289  * Returns a pointer into the DOS environment... Ugh.
 290  */
 291 static LPSTR SHELL_FindString(LPSTR lpEnv, LPCSTR entry)
 292 { UINT16 l;
 293
 294   TRACE("\n");
 295
 296   l = strlen(entry);
 297   for( ; *lpEnv ; lpEnv+=strlen(lpEnv)+1 )
 298   { if( strncasecmp(lpEnv, entry, l) )
 299       continue;
 300         if( !*(lpEnv+l) )
 301             return (lpEnv + l);                 /* empty entry */
 302         else if ( *(lpEnv+l)== '=' )
 303             return (lpEnv + l + 1);
 304     }
 305     return NULL;
 306 }
 307
 308 /**********************************************************************/
 309
 310 SEGPTR WINAPI FindEnvironmentString16(LPCSTR str)
 311 { SEGPTR  spEnv;
 312   LPSTR lpEnv,lpString;
 313   TRACE("\n");
 314
 315   spEnv = GetDOSEnvironment16();
 316
 317   lpEnv = MapSL(spEnv);
 318   lpString = (spEnv)?SHELL_FindString(lpEnv, str):NULL;
 319
 320     if( lpString )              /*  offset should be small enough */
 321         return spEnv + (lpString - lpEnv);
 322     return (SEGPTR)NULL;
 323 }
 324
 325 /*************************************************************************
 326  *                              DoEnvironmentSubst      [SHELL.37]
 327  *
 328  * Replace %KEYWORD% in the str with the value of variable KEYWORD
 329  * from "DOS" environment. If it is not found the %KEYWORD% is left
 330  * intact. If the buffer is too small, str is not modified.
 331  *
 332  * PARAMS
 333  *  str        [I] '\0' terminated string with %keyword%.
 334  *             [O] '\0' terminated string with %keyword% substituted.
 335  *  length     [I] size of str.
 336  *
 337  * RETURNS
 338  *  str length in the LOWORD and 1 in HIWORD if subst was successful.
 339  */
 340 DWORD WINAPI DoEnvironmentSubst16(LPSTR str,WORD length)
 341 {
 342   LPSTR   lpEnv = MapSL(GetDOSEnvironment16());
 343   LPSTR   lpstr = str;
 344   LPSTR   lpend;
 345   LPSTR   lpBuffer = HeapAlloc( GetProcessHeap(), 0, length);
 346   WORD    bufCnt = 0;
 347   WORD    envKeyLen;
 348   LPSTR   lpKey;
 349   WORD    retStatus = 0;
 350   WORD    retLength = length;
 351
 352   CharToOemA(str,str);
 353
 354   TRACE("accept %s\n", str);
 355
 356   while( *lpstr && bufCnt <= length - 1 ) {
 357      if ( *lpstr != '%' ) {
 358         lpBuffer[bufCnt++] = *lpstr++;
 359         continue;
 360      }
 361
 362      for( lpend = lpstr + 1; *lpend && *lpend != '%'; lpend++) /**/;
 363
 364      envKeyLen = lpend - lpstr - 1;
 365      if( *lpend != '%' || envKeyLen == 0)
 366         goto err; /* "%\0" or "%%" found; back off and whine */
 367
 368      *lpend = '\0';
 369      lpKey = SHELL_FindString(lpEnv, lpstr+1);
 370      *lpend = '%';
 371      if( lpKey ) {
 372          int l = strlen(lpKey);
 373
 374          if( bufCnt + l > length - 1 )
 375                 goto err;
 376
 377         memcpy(lpBuffer + bufCnt, lpKey, l);
 378         bufCnt += l;
 379      } else { /* Keyword not found; Leave the %KEYWORD% intact */
 380         if( bufCnt + envKeyLen + 2 > length - 1 )
 381             goto err;
 382
 383          memcpy(lpBuffer + bufCnt, lpstr, envKeyLen + 2);
 384         bufCnt += envKeyLen + 2;
 385      }
 386
 387      lpstr = lpend + 1;
 388   }
 389
 390   if (!*lpstr && bufCnt <= length - 1) {
 391       memcpy(str,lpBuffer, bufCnt);
 392       str[bufCnt] = '\0';
 393       retLength = bufCnt + 1;
 394       retStatus = 1;
 395   }
 396
 397   err:
 398   if (!retStatus)
 399       WARN("-- Env subst aborted - string too short or invalid input\n");
 400   TRACE("-- return %s\n", str);
 401
 402   OemToCharA(str,str);
 403   HeapFree( GetProcessHeap(), 0, lpBuffer);
 404
 405   return (DWORD)MAKELONG(retLength, retStatus);
 406 }
 407
 408 /*************************************************************************
 409  *                              SHELL_HookProc
 410  *
 411  * 32-bit version of the system-wide WH_SHELL hook.
 412  */
 413 static LRESULT WINAPI SHELL_HookProc(INT code, WPARAM wParam, LPARAM lParam)
 414 {
 415     TRACE("%i, %lx, %08lx\n", code, wParam, lParam );
 416
 417     if (SHELL_hWnd)
 418     {
 419         switch( code )
 420         {
 421         case HSHELL_WINDOWCREATED:
 422             PostMessageA( SHELL_hWnd, uMsgWndCreated, wParam, 0 );
 423             break;
 424         case HSHELL_WINDOWDESTROYED:
 425             PostMessageA( SHELL_hWnd, uMsgWndDestroyed, wParam, 0 );
 426             break;
 427         case HSHELL_ACTIVATESHELLWINDOW:
 428             PostMessageA( SHELL_hWnd, uMsgShellActivate, wParam, 0 );
 429             break;
 430         }
 431     }
 432     return CallNextHookEx( SHELL_hHook, code, wParam, lParam );
 433 }
 434
 435 /*************************************************************************
 436  *                              ShellHookProc           [SHELL.103]
 437  * System-wide WH_SHELL hook.
 438  */
 439 LRESULT WINAPI ShellHookProc16(INT16 code, WPARAM16 wParam, LPARAM lParam)
 440 {
 441     return SHELL_HookProc( code, wParam, lParam );
 442 }
 443
 444 /*************************************************************************
 445  *                              RegisterShellHook       [SHELL.102]
 446  */
 447 BOOL WINAPI RegisterShellHook16(HWND16 hWnd, UINT16 uAction)
 448 {
 449     TRACE("%04x [%u]\n", hWnd, uAction );
 450
 451     switch( uAction )
 452     {
 453     case 2:  /* register hWnd as a shell window */
 454         if( !SHELL_hHook )
 455         {
 456             SHELL_hHook = SetWindowsHookExA( WH_SHELL, SHELL_HookProc,
 457                                              GetModuleHandleA("shell32.dll"), 0 );
 458             if ( SHELL_hHook )
 459             {
 460                 uMsgWndCreated = RegisterWindowMessageA( lpstrMsgWndCreated );
 461                 uMsgWndDestroyed = RegisterWindowMessageA( lpstrMsgWndDestroyed );
 462                 uMsgShellActivate = RegisterWindowMessageA( lpstrMsgShellActivate );
 463             }
 464             else
 465                 WARN("-- unable to install ShellHookProc()!\n");
 466         }
 467
 468         if ( SHELL_hHook )
 469             return ((SHELL_hWnd = HWND_32(hWnd)) != 0);
 470         break;
 471
 472     default:
 473         WARN("-- unknown code %i\n", uAction );
 474         SHELL_hWnd = 0; /* just in case */
 475     }
 476     return FALSE;
 477 }
 478
 479
 480 /***********************************************************************
 481  *           DriveType   (SHELL.262)
 482  */
 483 UINT16 WINAPI DriveType16( UINT16 drive )
 484 {
 485     UINT ret;
 486     char path[] = "A:\\";
 487     path[0] += drive;
 488     ret = GetDriveTypeA(path);
 489     switch(ret)  /* some values are not supported in Win16 */
 490     {
 491     case DRIVE_CDROM:
 492         ret = DRIVE_REMOTE;
 493         break;
 494     case DRIVE_NO_ROOT_DIR:
 495         ret = DRIVE_UNKNOWN;
 496         break;
 497     }
 498     return ret;
 499 }
 500
 501
 502 /* 0 and 1 are valid rootkeys in win16 shell.dll and are used by
 503  * some programs. Do not remove those cases. -MM
 504  */
 505 static inline void fix_win16_hkey( HKEY *hkey )
 506 {
 507     if (*hkey == 0 || *hkey == (HKEY)1) *hkey = HKEY_CLASSES_ROOT;
 508 }
 509
 510 /******************************************************************************
 511  *           RegOpenKey   [SHELL.1]
 512  */
 513 DWORD WINAPI RegOpenKey16( HKEY hkey, LPCSTR name, PHKEY retkey )
 514 {
 515     fix_win16_hkey( &hkey );
 516     return RegOpenKeyA( hkey, name, retkey );
 517 }
 518
 519 /******************************************************************************
 520  *           RegCreateKey   [SHELL.2]
 521  */
 522 DWORD WINAPI RegCreateKey16( HKEY hkey, LPCSTR name, PHKEY retkey )
 523 {
 524     fix_win16_hkey( &hkey );
 525     return RegCreateKeyA( hkey, name, retkey );
 526 }
 527
 528 /******************************************************************************
 529  *           RegCloseKey   [SHELL.3]
 530  */
 531 DWORD WINAPI RegCloseKey16( HKEY hkey )
 532 {
 533     fix_win16_hkey( &hkey );
 534     return RegCloseKey( hkey );
 535 }
 536
 537 /******************************************************************************
 538  *           RegDeleteKey   [SHELL.4]
 539  */
 540 DWORD WINAPI RegDeleteKey16( HKEY hkey, LPCSTR name )
 541 {
 542     fix_win16_hkey( &hkey );
 543     return RegDeleteKeyA( hkey, name );
 544 }
 545
 546 /******************************************************************************
 547  *           RegSetValue   [SHELL.5]
 548  */
 549 DWORD WINAPI RegSetValue16( HKEY hkey, LPCSTR name, DWORD type, LPCSTR data, DWORD count )
 550 {
 551     fix_win16_hkey( &hkey );
 552     return RegSetValueA( hkey, name, type, data, count );
 553 }
 554
 555 /******************************************************************************
 556  *           RegQueryValue   [SHELL.6]
 557  *
 558  * NOTES
 559  *    Is this HACK still applicable?
 560  *
 561  * HACK
 562  *    The 16bit RegQueryValue doesn't handle selectorblocks anyway, so we just
 563  *    mask out the high 16 bit.  This (not so much incidently) hopefully fixes
 564  *    Aldus FH4)
 565  */
 566 DWORD WINAPI RegQueryValue16( HKEY hkey, LPCSTR name, LPSTR data, LPDWORD count
 567 )
 568 {
 569     fix_win16_hkey( &hkey );
 570     if (count) *count &= 0xffff;
 571     return RegQueryValueA( hkey, name, data, (LONG*) count );
 572 }
 573
 574 /******************************************************************************
 575  *           RegEnumKey   [SHELL.7]
 576  */
 577 DWORD WINAPI RegEnumKey16( HKEY hkey, DWORD index, LPSTR name, DWORD name_len )
 578 {
 579     fix_win16_hkey( &hkey );
 580     return RegEnumKeyA( hkey, index, name, name_len );
 581 }
 582
 583 /*************************************************************************
 584  *           SHELL_Execute16 [Internal]
 585  */
 586 static UINT_PTR SHELL_Execute16(const WCHAR *lpCmd, WCHAR *env, BOOL shWait,
 587                             LPSHELLEXECUTEINFOW psei, LPSHELLEXECUTEINFOW psei_out)
 588 {
 589     UINT ret;
 590     char sCmd[MAX_PATH];
 591     WideCharToMultiByte(CP_ACP, 0, lpCmd, -1, sCmd, MAX_PATH, NULL, NULL);
 592     ret = WinExec16(sCmd, (UINT16)psei->nShow);
 593     psei_out->hInstApp = HINSTANCE_32(ret);
 594     return ret;
 595 }
 596
 597 /*************************************************************************
 598  *                              ShellExecute            [SHELL.20]
 599  */
 600 HINSTANCE16 WINAPI ShellExecute16( HWND16 hWnd, LPCSTR lpOperation,
 601                                    LPCSTR lpFile, LPCSTR lpParameters,
 602                                    LPCSTR lpDirectory, INT16 iShowCmd )
 603 {
 604     SHELLEXECUTEINFOW seiW;
 605     WCHAR *wVerb = NULL, *wFile = NULL, *wParameters = NULL, *wDirectory = NULL;
 606     HANDLE hProcess = 0;
 607
 608     seiW.lpVerb = lpOperation ? __SHCloneStrAtoW(&wVerb, lpOperation) : NULL;
 609     seiW.lpFile = lpFile ? __SHCloneStrAtoW(&wFile, lpFile) : NULL;
 610     seiW.lpParameters = lpParameters ? __SHCloneStrAtoW(&wParameters, lpParameters) : NULL;
 611     seiW.lpDirectory = lpDirectory ? __SHCloneStrAtoW(&wDirectory, lpDirectory) : NULL;
 612
 613     seiW.cbSize = sizeof(seiW);
 614     seiW.fMask = 0;
 615     seiW.hwnd = HWND_32(hWnd);
 616     seiW.nShow = iShowCmd;
 617     seiW.lpIDList = 0;
 618     seiW.lpClass = 0;
 619     seiW.hkeyClass = 0;
 620     seiW.dwHotKey = 0;
 621     seiW.hProcess = hProcess;
 622
 623     SHELL_execute( &seiW, SHELL_Execute16 );
 624
 625     SHFree(wVerb);
 626     SHFree(wFile);
 627     SHFree(wParameters);
 628     SHFree(wDirectory);
 629
 630     return HINSTANCE_16(seiW.hInstApp);
 631 }