git.oblomov.eu Git - wine/blob - 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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  21  */
  22
  23 #include "config.h"
  24 #include "wine/port.h"
  25
  26 #include <stdlib.h>
  27 #include <string.h>
  28 #ifdef HAVE_UNISTD_H
  29 # include <unistd.h>
  30 #endif
  31 #include <ctype.h>
  32
  33 #include "windef.h"
  34 #include "winerror.h"
  35 #include "winreg.h"
  36 #include "wownt32.h"
  37 #include "dlgs.h"
  38 #include "shellapi.h"
  39 #include "shlobj.h"
  40 #include "shlwapi.h"
  41 #include "ddeml.h"
  42
  43 #include "wine/winbase16.h"
  44 #include "wine/winuser16.h"
  45 #include "shell32_main.h"
  46
  47 #include "wine/debug.h"
  48
  49 WINE_DEFAULT_DEBUG_CHANNEL(shell);
  50 WINE_DECLARE_DEBUG_CHANNEL(exec);
  51
  52
  53 typedef struct {     /* structure for dropped files */
  54  WORD     wSize;
  55  POINT16  ptMousePos;
  56  BOOL16   fInNonClientArea;
  57  /* memory block with filenames follows */
  58 } DROPFILESTRUCT16, *LPDROPFILESTRUCT16;
  59
  60 static const char*      lpstrMsgWndCreated = "OTHERWINDOWCREATED";
  61 static const char*      lpstrMsgWndDestroyed = "OTHERWINDOWDESTROYED";
  62 static const char*      lpstrMsgShellActivate = "ACTIVATESHELLWINDOW";
  63
  64 static HWND     SHELL_hWnd = 0;
  65 static HHOOK    SHELL_hHook = 0;
  66 static UINT     uMsgWndCreated = 0;
  67 static UINT     uMsgWndDestroyed = 0;
  68 static UINT     uMsgShellActivate = 0;
  69 HINSTANCE16     SHELL_hInstance = 0;
  70 HINSTANCE SHELL_hInstance32;
  71 static int SHELL_Attach = 0;
  72
  73 /***********************************************************************
  74  * DllEntryPoint [SHELL.101]
  75  *
  76  * Initialization code for shell.dll. Automatically loads the
  77  * 32-bit shell32.dll to allow thunking up to 32-bit code.
  78  *
  79  * RETURNS
  80  *  Success: TRUE. Initialization completed successfully.
  81  *  Failure: FALSE.
  82  */
  83 BOOL WINAPI SHELL_DllEntryPoint(DWORD Reason, HINSTANCE16 hInst,
  84                                 WORD ds, WORD HeapSize, DWORD res1, WORD res2)
  85 {
  86     TRACE("(%08lx, %04x, %04x, %04x, %08lx, %04x)\n",
  87           Reason, hInst, ds, HeapSize, res1, res2);
  88
  89     switch(Reason)
  90     {
  91     case DLL_PROCESS_ATTACH:
  92         if (SHELL_Attach++) break;
  93         SHELL_hInstance = hInst;
  94         if(!SHELL_hInstance32)
  95         {
  96             if(!(SHELL_hInstance32 = LoadLibraryA("shell32.dll")))
  97             {
  98                 ERR("Could not load sibling shell32.dll\n");
  99                 return FALSE;
 100             }
 101         }
 102         break;
 103
 104     case DLL_PROCESS_DETACH:
 105         if(!--SHELL_Attach)
 106         {
 107             SHELL_hInstance = 0;
 108             if(SHELL_hInstance32)
 109                 FreeLibrary(SHELL_hInstance32);
 110         }
 111         break;
 112     }
 113     return TRUE;
 114 }
 115
 116 /*************************************************************************
 117  *                              DragAcceptFiles         [SHELL.9]
 118  */
 119 void WINAPI DragAcceptFiles16(HWND16 hWnd, BOOL16 b)
 120 {
 121   DragAcceptFiles(HWND_32(hWnd), b);
 122 }
 123
 124 /*************************************************************************
 125  *                              DragQueryFile           [SHELL.11]
 126  */
 127 UINT16 WINAPI DragQueryFile16(
 128         HDROP16 hDrop,
 129         WORD wFile,
 130         LPSTR lpszFile,
 131         WORD wLength)
 132 {
 133         LPSTR lpDrop;
 134         UINT i = 0;
 135         LPDROPFILESTRUCT16 lpDropFileStruct = (LPDROPFILESTRUCT16) GlobalLock16(hDrop);
 136
 137         TRACE("(%04x, %x, %p, %u)\n", hDrop,wFile,lpszFile,wLength);
 138
 139         if(!lpDropFileStruct) goto end;
 140
 141         lpDrop = (LPSTR) lpDropFileStruct + lpDropFileStruct->wSize;
 142         wFile = (wFile==0xffff) ? 0xffffffff : wFile;
 143
 144         while (i++ < wFile)
 145         {
 146           while (*lpDrop++); /* skip filename */
 147           if (!*lpDrop)
 148           {
 149             i = (wFile == 0xFFFFFFFF) ? i : 0;
 150             goto end;
 151           }
 152         }
 153
 154         i = strlen(lpDrop);
 155         i++;
 156         if (!lpszFile ) goto end;   /* needed buffer size */
 157         i = (wLength > i) ? i : wLength;
 158         lstrcpynA (lpszFile,  lpDrop,  i);
 159 end:
 160         GlobalUnlock16(hDrop);
 161         return i;
 162 }
 163
 164 /*************************************************************************
 165  *                              DragFinish              [SHELL.12]
 166  */
 167 void WINAPI DragFinish16(HDROP16 h)
 168 {
 169     TRACE("\n");
 170     GlobalFree16((HGLOBAL16)h);
 171 }
 172
 173
 174 /*************************************************************************
 175  *                              DragQueryPoint          [SHELL.13]
 176  */
 177 BOOL16 WINAPI DragQueryPoint16(HDROP16 hDrop, POINT16 *p)
 178 {
 179   LPDROPFILESTRUCT16 lpDropFileStruct;
 180   BOOL16           bRet;
 181   TRACE("\n");
 182   lpDropFileStruct = (LPDROPFILESTRUCT16) GlobalLock16(hDrop);
 183
 184   memcpy(p,&lpDropFileStruct->ptMousePos,sizeof(POINT16));
 185   bRet = lpDropFileStruct->fInNonClientArea;
 186
 187   GlobalUnlock16(hDrop);
 188   return bRet;
 189 }
 190
 191 /*************************************************************************
 192  *             FindExecutable   (SHELL.21)
 193  */
 194 HINSTANCE16 WINAPI FindExecutable16( LPCSTR lpFile, LPCSTR lpDirectory,
 195                                      LPSTR lpResult )
 196 { return HINSTANCE_16(FindExecutableA( lpFile, lpDirectory, lpResult ));
 197 }
 198
 199 /*************************************************************************
 200  *             AboutDlgProc   (SHELL.33)
 201  */
 202 BOOL16 WINAPI AboutDlgProc16( HWND16 hWnd, UINT16 msg, WPARAM16 wParam,
 203                                LPARAM lParam )
 204 { return (BOOL16)AboutDlgProc( HWND_32(hWnd), msg, wParam, lParam );
 205 }
 206
 207
 208 /*************************************************************************
 209  *             ShellAbout   (SHELL.22)
 210  */
 211 BOOL16 WINAPI ShellAbout16( HWND16 hWnd, LPCSTR szApp, LPCSTR szOtherStuff,
 212                             HICON16 hIcon )
 213 { return ShellAboutA( HWND_32(hWnd), szApp, szOtherStuff, HICON_32(hIcon) );
 214 }
 215
 216 /*************************************************************************
 217  *                      InternalExtractIcon             [SHELL.39]
 218  *
 219  * This abortion is called directly by Progman
 220  */
 221 HGLOBAL16 WINAPI InternalExtractIcon16(HINSTANCE16 hInstance,
 222                                      LPCSTR lpszExeFileName, UINT16 nIconIndex, WORD n )
 223 {
 224     HGLOBAL16 hRet = 0;
 225     HICON16 *RetPtr = NULL;
 226     OFSTRUCT ofs;
 227
 228         TRACE("(%04x,file %s,start %d,extract %d\n",
 229                        hInstance, lpszExeFileName, nIconIndex, n);
 230
 231         if (!n)
 232           return 0;
 233
 234         hRet = GlobalAlloc16(GMEM_FIXED | GMEM_ZEROINIT, sizeof(*RetPtr) * n);
 235         RetPtr = (HICON16*)GlobalLock16(hRet);
 236
 237         if (nIconIndex == (UINT16)-1)  /* get number of icons */
 238         {
 239           RetPtr[0] = PrivateExtractIconsA(ofs.szPathName, 0, 0, 0, NULL, NULL, 0, LR_DEFAULTCOLOR);
 240         }
 241         else
 242         {
 243           UINT ret;
 244           HICON *icons;
 245
 246           icons = HeapAlloc(GetProcessHeap(), 0, n * sizeof(*icons));
 247           ret = PrivateExtractIconsA(ofs.szPathName, nIconIndex,
 248                                      GetSystemMetrics(SM_CXICON),
 249                                      GetSystemMetrics(SM_CYICON),
 250                                      icons, NULL, n, LR_DEFAULTCOLOR);
 251           if ((ret != 0xffffffff) && ret)
 252           {
 253             int i;
 254             for (i = 0; i < n; i++) RetPtr[i] = HICON_16(icons[i]);
 255           }
 256           else
 257           {
 258             GlobalFree16(hRet);
 259             hRet = 0;
 260           }
 261           HeapFree(GetProcessHeap(), 0, icons);
 262         }
 263         return hRet;
 264 }
 265
 266 /*************************************************************************
 267  *             ExtractIcon   (SHELL.34)
 268  */
 269 HICON16 WINAPI ExtractIcon16( HINSTANCE16 hInstance, LPCSTR lpszExeFileName,
 270         UINT16 nIconIndex )
 271 {   TRACE("\n");
 272     return HICON_16(ExtractIconA(HINSTANCE_32(hInstance), lpszExeFileName, nIconIndex));
 273 }
 274
 275 /*************************************************************************
 276  *             ExtractIconEx   (SHELL.40)
 277  */
 278 HICON16 WINAPI ExtractIconEx16(
 279         LPCSTR lpszFile, INT16 nIconIndex, HICON16 *phiconLarge,
 280         HICON16 *phiconSmall, UINT16 nIcons
 281 ) {
 282     HICON       *ilarge,*ismall;
 283     UINT16      ret;
 284     int         i;
 285
 286     if (phiconLarge)
 287         ilarge = (HICON*)HeapAlloc(GetProcessHeap(),0,nIcons*sizeof(HICON));
 288     else
 289         ilarge = NULL;
 290     if (phiconSmall)
 291         ismall = (HICON*)HeapAlloc(GetProcessHeap(),0,nIcons*sizeof(HICON));
 292     else
 293         ismall = NULL;
 294     ret = HICON_16(ExtractIconExA(lpszFile,nIconIndex,ilarge,ismall,nIcons));
 295     if (ilarge) {
 296         for (i=0;i<nIcons;i++)
 297             phiconLarge[i]=HICON_16(ilarge[i]);
 298         HeapFree(GetProcessHeap(),0,ilarge);
 299     }
 300     if (ismall) {
 301         for (i=0;i<nIcons;i++)
 302             phiconSmall[i]=HICON_16(ismall[i]);
 303         HeapFree(GetProcessHeap(),0,ismall);
 304     }
 305     return ret;
 306 }
 307
 308 /*************************************************************************
 309  *                              ExtractAssociatedIcon   [SHELL.36]
 310  *
 311  * Return icon for given file (either from file itself or from associated
 312  * executable) and patch parameters if needed.
 313  */
 314 HICON16 WINAPI ExtractAssociatedIcon16(HINSTANCE16 hInst, LPSTR lpIconPath, LPWORD lpiIcon)
 315 {
 316     return HICON_16(ExtractAssociatedIconA(HINSTANCE_32(hInst), lpIconPath,
 317                     lpiIcon));
 318 }
 319
 320 /*************************************************************************
 321  *                              FindEnvironmentString   [SHELL.38]
 322  *
 323  * Returns a pointer into the DOS environment... Ugh.
 324  */
 325 static LPSTR SHELL_FindString(LPSTR lpEnv, LPCSTR entry)
 326 { UINT16 l;
 327
 328   TRACE("\n");
 329
 330   l = strlen(entry);
 331   for( ; *lpEnv ; lpEnv+=strlen(lpEnv)+1 )
 332   { if( strncasecmp(lpEnv, entry, l) )
 333       continue;
 334         if( !*(lpEnv+l) )
 335             return (lpEnv + l);                 /* empty entry */
 336         else if ( *(lpEnv+l)== '=' )
 337             return (lpEnv + l + 1);
 338     }
 339     return NULL;
 340 }
 341
 342 /**********************************************************************/
 343
 344 SEGPTR WINAPI FindEnvironmentString16(LPSTR str)
 345 { SEGPTR  spEnv;
 346   LPSTR lpEnv,lpString;
 347   TRACE("\n");
 348
 349   spEnv = GetDOSEnvironment16();
 350
 351   lpEnv = MapSL(spEnv);
 352   lpString = (spEnv)?SHELL_FindString(lpEnv, str):NULL;
 353
 354     if( lpString )              /*  offset should be small enough */
 355         return spEnv + (lpString - lpEnv);
 356     return (SEGPTR)NULL;
 357 }
 358
 359 /*************************************************************************
 360  *                              DoEnvironmentSubst      [SHELL.37]
 361  *
 362  * Replace %KEYWORD% in the str with the value of variable KEYWORD
 363  * from "DOS" environment.
 364  */
 365 DWORD WINAPI DoEnvironmentSubst16(LPSTR str,WORD length)
 366 {
 367   LPSTR   lpEnv = MapSL(GetDOSEnvironment16());
 368   LPSTR   lpBuffer = (LPSTR)HeapAlloc( GetProcessHeap(), 0, length);
 369   LPSTR   lpstr = str;
 370   LPSTR   lpbstr = lpBuffer;
 371
 372   CharToOemA(str,str);
 373
 374   TRACE("accept %s\n", str);
 375
 376   while( *lpstr && lpbstr - lpBuffer < length )
 377    {
 378      LPSTR lpend = lpstr;
 379
 380      if( *lpstr == '%' )
 381        {
 382           do { lpend++; } while( *lpend && *lpend != '%' );
 383           if( *lpend == '%' && lpend - lpstr > 1 )      /* found key */
 384             {
 385                LPSTR lpKey;
 386               *lpend = '\0';
 387                lpKey = SHELL_FindString(lpEnv, lpstr+1);
 388                if( lpKey )                              /* found key value */
 389                  {
 390                    int l = strlen(lpKey);
 391
 392                    if( l > length - (lpbstr - lpBuffer) - 1 )
 393                      {
 394            WARN("-- Env subst aborted - string too short\n");
 395                       *lpend = '%';
 396                        break;
 397                      }
 398                    strcpy(lpbstr, lpKey);
 399                    lpbstr += l;
 400                  }
 401                else break;
 402               *lpend = '%';
 403                lpstr = lpend + 1;
 404             }
 405           else break;                                   /* back off and whine */
 406
 407           continue;
 408        }
 409
 410      *lpbstr++ = *lpstr++;
 411    }
 412
 413  *lpbstr = '\0';
 414   if( lpstr - str == strlen(str) )
 415     {
 416       strncpy(str, lpBuffer, length);
 417       length = 1;
 418     }
 419   else
 420       length = 0;
 421
 422   TRACE("-- return %s\n", str);
 423
 424   OemToCharA(str,str);
 425   HeapFree( GetProcessHeap(), 0, lpBuffer);
 426
 427   /*  Return str length in the LOWORD
 428    *  and 1 in HIWORD if subst was successful.
 429    */
 430  return (DWORD)MAKELONG(strlen(str), length);
 431 }
 432
 433 /*************************************************************************
 434  *                              SHELL_HookProc
 435  *
 436  * 32-bit version of the system-wide WH_SHELL hook.
 437  */
 438 static LRESULT WINAPI SHELL_HookProc(INT code, WPARAM wParam, LPARAM lParam)
 439 {
 440     TRACE("%i, %x, %08lx\n", code, wParam, lParam );
 441
 442     if (SHELL_hWnd)
 443     {
 444         switch( code )
 445         {
 446         case HSHELL_WINDOWCREATED:
 447             PostMessageA( SHELL_hWnd, uMsgWndCreated, wParam, 0 );
 448             break;
 449         case HSHELL_WINDOWDESTROYED:
 450             PostMessageA( SHELL_hWnd, uMsgWndDestroyed, wParam, 0 );
 451             break;
 452         case HSHELL_ACTIVATESHELLWINDOW:
 453             PostMessageA( SHELL_hWnd, uMsgShellActivate, wParam, 0 );
 454             break;
 455         }
 456     }
 457     return CallNextHookEx( SHELL_hHook, code, wParam, lParam );
 458 }
 459
 460 /*************************************************************************
 461  *                              ShellHookProc           [SHELL.103]
 462  * System-wide WH_SHELL hook.
 463  */
 464 LRESULT WINAPI ShellHookProc16(INT16 code, WPARAM16 wParam, LPARAM lParam)
 465 {
 466     return SHELL_HookProc( code, wParam, lParam );
 467 }
 468
 469 /*************************************************************************
 470  *                              RegisterShellHook       [SHELL.102]
 471  */
 472 BOOL WINAPI RegisterShellHook16(HWND16 hWnd, UINT16 uAction)
 473 {
 474     TRACE("%04x [%u]\n", hWnd, uAction );
 475
 476     switch( uAction )
 477     {
 478     case 2:  /* register hWnd as a shell window */
 479         if( !SHELL_hHook )
 480         {
 481             SHELL_hHook = SetWindowsHookExA( WH_SHELL, SHELL_HookProc,
 482                                              GetModuleHandleA("shell32.dll"), 0 );
 483             if ( SHELL_hHook )
 484             {
 485                 uMsgWndCreated = RegisterWindowMessageA( lpstrMsgWndCreated );
 486                 uMsgWndDestroyed = RegisterWindowMessageA( lpstrMsgWndDestroyed );
 487                 uMsgShellActivate = RegisterWindowMessageA( lpstrMsgShellActivate );
 488             }
 489             else
 490                 WARN("-- unable to install ShellHookProc()!\n");
 491         }
 492
 493         if ( SHELL_hHook )
 494             return ((SHELL_hWnd = HWND_32(hWnd)) != 0);
 495         break;
 496
 497     default:
 498         WARN("-- unknown code %i\n", uAction );
 499         SHELL_hWnd = 0; /* just in case */
 500     }
 501     return FALSE;
 502 }
 503
 504
 505 /***********************************************************************
 506  *           DriveType   (SHELL.262)
 507  */
 508 UINT16 WINAPI DriveType16( UINT16 drive )
 509 {
 510     UINT ret;
 511     char path[] = "A:\\";
 512     path[0] += drive;
 513     ret = GetDriveTypeA(path);
 514     switch(ret)  /* some values are not supported in Win16 */
 515     {
 516     case DRIVE_CDROM:
 517         ret = DRIVE_REMOTE;
 518         break;
 519     case DRIVE_NO_ROOT_DIR:
 520         ret = DRIVE_UNKNOWN;
 521         break;
 522     }
 523     return ret;
 524 }
 525
 526
 527 /* 0 and 1 are valid rootkeys in win16 shell.dll and are used by
 528  * some programs. Do not remove those cases. -MM
 529  */
 530 static inline void fix_win16_hkey( HKEY *hkey )
 531 {
 532     if (*hkey == 0 || *hkey == (HKEY)1) *hkey = HKEY_CLASSES_ROOT;
 533 }
 534
 535 /******************************************************************************
 536  *           RegOpenKey   [SHELL.1]
 537  */
 538 DWORD WINAPI RegOpenKey16( HKEY hkey, LPCSTR name, PHKEY retkey )
 539 {
 540     fix_win16_hkey( &hkey );
 541     return RegOpenKeyA( hkey, name, retkey );
 542 }
 543
 544 /******************************************************************************
 545  *           RegCreateKey   [SHELL.2]
 546  */
 547 DWORD WINAPI RegCreateKey16( HKEY hkey, LPCSTR name, PHKEY retkey )
 548 {
 549     fix_win16_hkey( &hkey );
 550     return RegCreateKeyA( hkey, name, retkey );
 551 }
 552
 553 /******************************************************************************
 554  *           RegCloseKey   [SHELL.3]
 555  */
 556 DWORD WINAPI RegCloseKey16( HKEY hkey )
 557 {
 558     fix_win16_hkey( &hkey );
 559     return RegCloseKey( hkey );
 560 }
 561
 562 /******************************************************************************
 563  *           RegDeleteKey   [SHELL.4]
 564  */
 565 DWORD WINAPI RegDeleteKey16( HKEY hkey, LPCSTR name )
 566 {
 567     fix_win16_hkey( &hkey );
 568     return RegDeleteKeyA( hkey, name );
 569 }
 570
 571 /******************************************************************************
 572  *           RegSetValue   [SHELL.5]
 573  */
 574 DWORD WINAPI RegSetValue16( HKEY hkey, LPCSTR name, DWORD type, LPCSTR data, DWORD count )
 575 {
 576     fix_win16_hkey( &hkey );
 577     return RegSetValueA( hkey, name, type, data, count );
 578 }
 579
 580 /******************************************************************************
 581  *           RegQueryValue   [SHELL.6]
 582  *
 583  * NOTES
 584  *    Is this HACK still applicable?
 585  *
 586  * HACK
 587  *    The 16bit RegQueryValue doesn't handle selectorblocks anyway, so we just
 588  *    mask out the high 16 bit.  This (not so much incidently) hopefully fixes
 589  *    Aldus FH4)
 590  */
 591 DWORD WINAPI RegQueryValue16( HKEY hkey, LPCSTR name, LPSTR data, LPDWORD count
 592 )
 593 {
 594     fix_win16_hkey( &hkey );
 595     if (count) *count &= 0xffff;
 596     return RegQueryValueA( hkey, name, data, count );
 597 }
 598
 599 /******************************************************************************
 600  *           RegEnumKey   [SHELL.7]
 601  */
 602 DWORD WINAPI RegEnumKey16( HKEY hkey, DWORD index, LPSTR name, DWORD name_len )
 603 {
 604     fix_win16_hkey( &hkey );
 605     return RegEnumKeyA( hkey, index, name, name_len );
 606 }
 607
 608 /*************************************************************************
 609  *           SHELL_Execute16 [Internal]
 610  */
 611 static UINT SHELL_Execute16(char *lpCmd, LPSHELLEXECUTEINFOA sei, BOOL shWait)
 612 {
 613     UINT ret = WinExec16(lpCmd, sei->nShow);
 614     sei->hInstApp = HINSTANCE_32(ret);
 615     return ret;
 616 }
 617
 618 /*************************************************************************
 619  *                              ShellExecute            [SHELL.20]
 620  */
 621 HINSTANCE16 WINAPI ShellExecute16( HWND16 hWnd, LPCSTR lpOperation,
 622                                    LPCSTR lpFile, LPCSTR lpParameters,
 623                                    LPCSTR lpDirectory, INT16 iShowCmd )
 624 {
 625     SHELLEXECUTEINFOA sei;
 626     HANDLE hProcess = 0;
 627
 628     sei.cbSize = sizeof(sei);
 629     sei.fMask = 0;
 630     sei.hwnd = HWND_32(hWnd);
 631     sei.lpVerb = lpOperation;
 632     sei.lpFile = lpFile;
 633     sei.lpParameters = lpParameters;
 634     sei.lpDirectory = lpDirectory;
 635     sei.nShow = iShowCmd;
 636     sei.lpIDList = 0;
 637     sei.lpClass = 0;
 638     sei.hkeyClass = 0;
 639     sei.dwHotKey = 0;
 640     sei.hProcess = hProcess;
 641
 642     ShellExecuteExA32 (&sei, SHELL_Execute16);
 643     return HINSTANCE_16(sei.hInstApp);
 644 }