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  */
  81 BOOL WINAPI SHELL_DllEntryPoint(DWORD Reason, HINSTANCE16 hInst,
  82                                 WORD ds, WORD HeapSize, DWORD res1, WORD res2)
  83 {
  84     TRACE("(%08lx, %04x, %04x, %04x, %08lx, %04x)\n",
  85           Reason, hInst, ds, HeapSize, res1, res2);
  86
  87     switch(Reason)
  88     {
  89     case DLL_PROCESS_ATTACH:
  90         if (SHELL_Attach++) break;
  91         SHELL_hInstance = hInst;
  92         if(!SHELL_hInstance32)
  93         {
  94             if(!(SHELL_hInstance32 = LoadLibraryA("shell32.dll")))
  95             {
  96                 ERR("Could not load sibling shell32.dll\n");
  97                 return FALSE;
  98             }
  99         }
 100         break;
 101
 102     case DLL_PROCESS_DETACH:
 103         if(!--SHELL_Attach)
 104         {
 105             SHELL_hInstance = 0;
 106             if(SHELL_hInstance32)
 107                 FreeLibrary(SHELL_hInstance32);
 108         }
 109         break;
 110     }
 111     return TRUE;
 112 }
 113
 114 /*************************************************************************
 115  *                              DragAcceptFiles         [SHELL.9]
 116  */
 117 void WINAPI DragAcceptFiles16(HWND16 hWnd, BOOL16 b)
 118 {
 119   DragAcceptFiles(HWND_32(hWnd), b);
 120 }
 121
 122 /*************************************************************************
 123  *                              DragQueryFile           [SHELL.11]
 124  */
 125 UINT16 WINAPI DragQueryFile16(
 126         HDROP16 hDrop,
 127         WORD wFile,
 128         LPSTR lpszFile,
 129         WORD wLength)
 130 {
 131         LPSTR lpDrop;
 132         UINT i = 0;
 133         LPDROPFILESTRUCT16 lpDropFileStruct = (LPDROPFILESTRUCT16) GlobalLock16(hDrop);
 134
 135         TRACE("(%04x, %x, %p, %u)\n", hDrop,wFile,lpszFile,wLength);
 136
 137         if(!lpDropFileStruct) goto end;
 138
 139         lpDrop = (LPSTR) lpDropFileStruct + lpDropFileStruct->wSize;
 140         wFile = (wFile==0xffff) ? 0xffffffff : wFile;
 141
 142         while (i++ < wFile)
 143         {
 144           while (*lpDrop++); /* skip filename */
 145           if (!*lpDrop)
 146           {
 147             i = (wFile == 0xFFFFFFFF) ? i : 0;
 148             goto end;
 149           }
 150         }
 151
 152         i = strlen(lpDrop);
 153         i++;
 154         if (!lpszFile ) goto end;   /* needed buffer size */
 155         i = (wLength > i) ? i : wLength;
 156         lstrcpynA (lpszFile,  lpDrop,  i);
 157 end:
 158         GlobalUnlock16(hDrop);
 159         return i;
 160 }
 161
 162 /*************************************************************************
 163  *                              DragFinish              [SHELL.12]
 164  */
 165 void WINAPI DragFinish16(HDROP16 h)
 166 {
 167     TRACE("\n");
 168     GlobalFree16((HGLOBAL16)h);
 169 }
 170
 171
 172 /*************************************************************************
 173  *                              DragQueryPoint          [SHELL.13]
 174  */
 175 BOOL16 WINAPI DragQueryPoint16(HDROP16 hDrop, POINT16 *p)
 176 {
 177   LPDROPFILESTRUCT16 lpDropFileStruct;
 178   BOOL16           bRet;
 179   TRACE("\n");
 180   lpDropFileStruct = (LPDROPFILESTRUCT16) GlobalLock16(hDrop);
 181
 182   memcpy(p,&lpDropFileStruct->ptMousePos,sizeof(POINT16));
 183   bRet = lpDropFileStruct->fInNonClientArea;
 184
 185   GlobalUnlock16(hDrop);
 186   return bRet;
 187 }
 188
 189 /*************************************************************************
 190  *             FindExecutable   (SHELL.21)
 191  */
 192 HINSTANCE16 WINAPI FindExecutable16( LPCSTR lpFile, LPCSTR lpDirectory,
 193                                      LPSTR lpResult )
 194 { return HINSTANCE_16(FindExecutableA( lpFile, lpDirectory, lpResult ));
 195 }
 196
 197 /*************************************************************************
 198  *             AboutDlgProc   (SHELL.33)
 199  */
 200 BOOL16 WINAPI AboutDlgProc16( HWND16 hWnd, UINT16 msg, WPARAM16 wParam,
 201                                LPARAM lParam )
 202 { return AboutDlgProc( HWND_32(hWnd), msg, wParam, lParam );
 203 }
 204
 205
 206 /*************************************************************************
 207  *             ShellAbout   (SHELL.22)
 208  */
 209 BOOL16 WINAPI ShellAbout16( HWND16 hWnd, LPCSTR szApp, LPCSTR szOtherStuff,
 210                             HICON16 hIcon )
 211 { return ShellAboutA( HWND_32(hWnd), szApp, szOtherStuff, HICON_32(hIcon) );
 212 }
 213
 214 /*************************************************************************
 215  *                      InternalExtractIcon             [SHELL.39]
 216  *
 217  * This abortion is called directly by Progman
 218  */
 219 HGLOBAL16 WINAPI InternalExtractIcon16(HINSTANCE16 hInstance,
 220                                      LPCSTR lpszExeFileName, UINT16 nIconIndex, WORD n )
 221 {
 222     HGLOBAL16 hRet = 0;
 223     HICON16 *RetPtr = NULL;
 224     OFSTRUCT ofs;
 225     HFILE hFile;
 226
 227         TRACE("(%04x,file %s,start %d,extract %d\n",
 228                        hInstance, lpszExeFileName, nIconIndex, n);
 229
 230         if( !n )
 231           return 0;
 232
 233         hFile = OpenFile( lpszExeFileName, &ofs, OF_READ|OF_EXIST );
 234
 235         hRet = GlobalAlloc16( GMEM_FIXED | GMEM_ZEROINIT, sizeof(HICON16)*n);
 236         RetPtr = (HICON16*)GlobalLock16(hRet);
 237
 238         if (hFile == HFILE_ERROR)
 239         { /* not found - load from builtin module if available */
 240           HINSTANCE hInst = HINSTANCE_32(LoadLibrary16(lpszExeFileName));
 241
 242           if ((int)hInst < 32) /* hmm, no Win16 module - try Win32 :-) */
 243             hInst = LoadLibraryA(lpszExeFileName);
 244           if (hInst)
 245           {
 246             int i;
 247             for (i=nIconIndex; i < nIconIndex + n; i++)
 248               RetPtr[i-nIconIndex] =
 249                       HICON_16(LoadIconA(hInst, (LPCSTR)(DWORD)i));
 250             FreeLibrary(hInst);
 251             return hRet;
 252           }
 253           GlobalFree16( hRet );
 254           return 0;
 255         }
 256
 257         if (nIconIndex == (UINT16)-1)  /* get number of icons */
 258         {
 259             RetPtr[0] = PrivateExtractIconsA( ofs.szPathName, -1, 0, 0, NULL, 0, 0, 0 );
 260         }
 261         else
 262         {
 263             HRESULT res;
 264             HICON *icons;
 265             icons = HeapAlloc( GetProcessHeap(), 0, n * sizeof(*icons) );
 266             res = PrivateExtractIconsA( ofs.szPathName, nIconIndex,
 267                                         GetSystemMetrics(SM_CXICON),
 268                                         GetSystemMetrics(SM_CYICON),
 269                                         icons, 0, n, 0 );
 270             if (!res)
 271             {
 272                 int i;
 273                 for (i = 0; i < n; i++) RetPtr[i] = HICON_16(icons[i]);
 274             }
 275             else
 276             {
 277                 GlobalFree16( hRet );
 278                 hRet = 0;
 279             }
 280             HeapFree( GetProcessHeap(), 0, icons );
 281         }
 282         return hRet;
 283 }
 284
 285 /*************************************************************************
 286  *             ExtractIcon   (SHELL.34)
 287  */
 288 HICON16 WINAPI ExtractIcon16( HINSTANCE16 hInstance, LPCSTR lpszExeFileName,
 289         UINT16 nIconIndex )
 290 {   TRACE("\n");
 291     return HICON_16(ExtractIconA(HINSTANCE_32(hInstance), lpszExeFileName, nIconIndex));
 292 }
 293
 294 /*************************************************************************
 295  *             ExtractIconEx   (SHELL.40)
 296  */
 297 HICON16 WINAPI ExtractIconEx16(
 298         LPCSTR lpszFile, INT16 nIconIndex, HICON16 *phiconLarge,
 299         HICON16 *phiconSmall, UINT16 nIcons
 300 ) {
 301     HICON       *ilarge,*ismall;
 302     UINT16      ret;
 303     int         i;
 304
 305     if (phiconLarge)
 306         ilarge = (HICON*)HeapAlloc(GetProcessHeap(),0,nIcons*sizeof(HICON));
 307     else
 308         ilarge = NULL;
 309     if (phiconSmall)
 310         ismall = (HICON*)HeapAlloc(GetProcessHeap(),0,nIcons*sizeof(HICON));
 311     else
 312         ismall = NULL;
 313     ret = HICON_16(ExtractIconExA(lpszFile,nIconIndex,ilarge,ismall,nIcons));
 314     if (ilarge) {
 315         for (i=0;i<nIcons;i++)
 316             phiconLarge[i]=HICON_16(ilarge[i]);
 317         HeapFree(GetProcessHeap(),0,ilarge);
 318     }
 319     if (ismall) {
 320         for (i=0;i<nIcons;i++)
 321             phiconSmall[i]=HICON_16(ismall[i]);
 322         HeapFree(GetProcessHeap(),0,ismall);
 323     }
 324     return ret;
 325 }
 326
 327 /*************************************************************************
 328  *                              ExtractAssociatedIcon   [SHELL.36]
 329  *
 330  * Return icon for given file (either from file itself or from associated
 331  * executable) and patch parameters if needed.
 332  */
 333 HICON16 WINAPI ExtractAssociatedIcon16(HINSTANCE16 hInst, LPSTR lpIconPath, LPWORD lpiIcon)
 334 {
 335     return HICON_16(ExtractAssociatedIconA(HINSTANCE_32(hInst), lpIconPath,
 336                     lpiIcon));
 337 }
 338
 339 /*************************************************************************
 340  *                              FindEnvironmentString   [SHELL.38]
 341  *
 342  * Returns a pointer into the DOS environment... Ugh.
 343  */
 344 LPSTR SHELL_FindString(LPSTR lpEnv, LPCSTR entry)
 345 { UINT16 l;
 346
 347   TRACE("\n");
 348
 349   l = strlen(entry);
 350   for( ; *lpEnv ; lpEnv+=strlen(lpEnv)+1 )
 351   { if( strncasecmp(lpEnv, entry, l) )
 352       continue;
 353         if( !*(lpEnv+l) )
 354             return (lpEnv + l);                 /* empty entry */
 355         else if ( *(lpEnv+l)== '=' )
 356             return (lpEnv + l + 1);
 357     }
 358     return NULL;
 359 }
 360
 361 /**********************************************************************/
 362
 363 SEGPTR WINAPI FindEnvironmentString16(LPSTR str)
 364 { SEGPTR  spEnv;
 365   LPSTR lpEnv,lpString;
 366   TRACE("\n");
 367
 368   spEnv = GetDOSEnvironment16();
 369
 370   lpEnv = MapSL(spEnv);
 371   lpString = (spEnv)?SHELL_FindString(lpEnv, str):NULL;
 372
 373     if( lpString )              /*  offset should be small enough */
 374         return spEnv + (lpString - lpEnv);
 375     return (SEGPTR)NULL;
 376 }
 377
 378 /*************************************************************************
 379  *                              DoEnvironmentSubst      [SHELL.37]
 380  *
 381  * Replace %KEYWORD% in the str with the value of variable KEYWORD
 382  * from "DOS" environment.
 383  */
 384 DWORD WINAPI DoEnvironmentSubst16(LPSTR str,WORD length)
 385 {
 386   LPSTR   lpEnv = MapSL(GetDOSEnvironment16());
 387   LPSTR   lpBuffer = (LPSTR)HeapAlloc( GetProcessHeap(), 0, length);
 388   LPSTR   lpstr = str;
 389   LPSTR   lpbstr = lpBuffer;
 390
 391   CharToOemA(str,str);
 392
 393   TRACE("accept %s\n", str);
 394
 395   while( *lpstr && lpbstr - lpBuffer < length )
 396    {
 397      LPSTR lpend = lpstr;
 398
 399      if( *lpstr == '%' )
 400        {
 401           do { lpend++; } while( *lpend && *lpend != '%' );
 402           if( *lpend == '%' && lpend - lpstr > 1 )      /* found key */
 403             {
 404                LPSTR lpKey;
 405               *lpend = '\0';
 406                lpKey = SHELL_FindString(lpEnv, lpstr+1);
 407                if( lpKey )                              /* found key value */
 408                  {
 409                    int l = strlen(lpKey);
 410
 411                    if( l > length - (lpbstr - lpBuffer) - 1 )
 412                      {
 413            WARN("-- Env subst aborted - string too short\n");
 414                       *lpend = '%';
 415                        break;
 416                      }
 417                    strcpy(lpbstr, lpKey);
 418                    lpbstr += l;
 419                  }
 420                else break;
 421               *lpend = '%';
 422                lpstr = lpend + 1;
 423             }
 424           else break;                                   /* back off and whine */
 425
 426           continue;
 427        }
 428
 429      *lpbstr++ = *lpstr++;
 430    }
 431
 432  *lpbstr = '\0';
 433   if( lpstr - str == strlen(str) )
 434     {
 435       strncpy(str, lpBuffer, length);
 436       length = 1;
 437     }
 438   else
 439       length = 0;
 440
 441   TRACE("-- return %s\n", str);
 442
 443   OemToCharA(str,str);
 444   HeapFree( GetProcessHeap(), 0, lpBuffer);
 445
 446   /*  Return str length in the LOWORD
 447    *  and 1 in HIWORD if subst was successful.
 448    */
 449  return (DWORD)MAKELONG(strlen(str), length);
 450 }
 451
 452 /*************************************************************************
 453  *                              SHELL_HookProc
 454  *
 455  * 32-bit version of the system-wide WH_SHELL hook.
 456  */
 457 static LRESULT WINAPI SHELL_HookProc(INT code, WPARAM wParam, LPARAM lParam)
 458 {
 459     TRACE("%i, %x, %08lx\n", code, wParam, lParam );
 460
 461     if (SHELL_hWnd)
 462     {
 463         switch( code )
 464         {
 465         case HSHELL_WINDOWCREATED:
 466             PostMessageA( SHELL_hWnd, uMsgWndCreated, wParam, 0 );
 467             break;
 468         case HSHELL_WINDOWDESTROYED:
 469             PostMessageA( SHELL_hWnd, uMsgWndDestroyed, wParam, 0 );
 470             break;
 471         case HSHELL_ACTIVATESHELLWINDOW:
 472             PostMessageA( SHELL_hWnd, uMsgShellActivate, wParam, 0 );
 473             break;
 474         }
 475     }
 476     return CallNextHookEx( SHELL_hHook, code, wParam, lParam );
 477 }
 478
 479 /*************************************************************************
 480  *                              ShellHookProc           [SHELL.103]
 481  * System-wide WH_SHELL hook.
 482  */
 483 LRESULT WINAPI ShellHookProc16(INT16 code, WPARAM16 wParam, LPARAM lParam)
 484 {
 485     return SHELL_HookProc( code, wParam, lParam );
 486 }
 487
 488 /*************************************************************************
 489  *                              RegisterShellHook       [SHELL.102]
 490  */
 491 BOOL WINAPI RegisterShellHook16(HWND16 hWnd, UINT16 uAction)
 492 {
 493     TRACE("%04x [%u]\n", hWnd, uAction );
 494
 495     switch( uAction )
 496     {
 497     case 2:  /* register hWnd as a shell window */
 498         if( !SHELL_hHook )
 499         {
 500             SHELL_hHook = SetWindowsHookExA( WH_SHELL, SHELL_HookProc,
 501                                              GetModuleHandleA("shell32.dll"), 0 );
 502             if ( SHELL_hHook )
 503             {
 504                 uMsgWndCreated = RegisterWindowMessageA( lpstrMsgWndCreated );
 505                 uMsgWndDestroyed = RegisterWindowMessageA( lpstrMsgWndDestroyed );
 506                 uMsgShellActivate = RegisterWindowMessageA( lpstrMsgShellActivate );
 507             }
 508             else
 509                 WARN("-- unable to install ShellHookProc()!\n");
 510         }
 511
 512         if ( SHELL_hHook )
 513             return ((SHELL_hWnd = HWND_32(hWnd)) != 0);
 514         break;
 515
 516     default:
 517         WARN("-- unknown code %i\n", uAction );
 518         SHELL_hWnd = 0; /* just in case */
 519     }
 520     return FALSE;
 521 }
 522
 523
 524 /***********************************************************************
 525  *           DriveType   (SHELL.262)
 526  */
 527 UINT16 WINAPI DriveType16( UINT16 drive )
 528 {
 529     UINT ret;
 530     char path[] = "A:\\";
 531     path[0] += drive;
 532     ret = GetDriveTypeA(path);
 533     switch(ret)  /* some values are not supported in Win16 */
 534     {
 535     case DRIVE_CDROM:
 536         ret = DRIVE_REMOTE;
 537         break;
 538     case DRIVE_NO_ROOT_DIR:
 539         ret = DRIVE_UNKNOWN;
 540         break;
 541     }
 542     return ret;
 543 }
 544
 545
 546 /* 0 and 1 are valid rootkeys in win16 shell.dll and are used by
 547  * some programs. Do not remove those cases. -MM
 548  */
 549 static inline void fix_win16_hkey( HKEY *hkey )
 550 {
 551     if (*hkey == 0 || *hkey == (HKEY)1) *hkey = HKEY_CLASSES_ROOT;
 552 }
 553
 554 /******************************************************************************
 555  *           RegOpenKey   [SHELL.1]
 556  */
 557 DWORD WINAPI RegOpenKey16( HKEY hkey, LPCSTR name, PHKEY retkey )
 558 {
 559     fix_win16_hkey( &hkey );
 560     return RegOpenKeyA( hkey, name, retkey );
 561 }
 562
 563 /******************************************************************************
 564  *           RegCreateKey   [SHELL.2]
 565  */
 566 DWORD WINAPI RegCreateKey16( HKEY hkey, LPCSTR name, PHKEY retkey )
 567 {
 568     fix_win16_hkey( &hkey );
 569     return RegCreateKeyA( hkey, name, retkey );
 570 }
 571
 572 /******************************************************************************
 573  *           RegCloseKey   [SHELL.3]
 574  */
 575 DWORD WINAPI RegCloseKey16( HKEY hkey )
 576 {
 577     fix_win16_hkey( &hkey );
 578     return RegCloseKey( hkey );
 579 }
 580
 581 /******************************************************************************
 582  *           RegDeleteKey   [SHELL.4]
 583  */
 584 DWORD WINAPI RegDeleteKey16( HKEY hkey, LPCSTR name )
 585 {
 586     fix_win16_hkey( &hkey );
 587     return RegDeleteKeyA( hkey, name );
 588 }
 589
 590 /******************************************************************************
 591  *           RegSetValue   [SHELL.5]
 592  */
 593 DWORD WINAPI RegSetValue16( HKEY hkey, LPCSTR name, DWORD type, LPCSTR data, DWORD count )
 594 {
 595     fix_win16_hkey( &hkey );
 596     return RegSetValueA( hkey, name, type, data, count );
 597 }
 598
 599 /******************************************************************************
 600  *           RegQueryValue   [SHELL.6]
 601  *
 602  * NOTES
 603  *    Is this HACK still applicable?
 604  *
 605  * HACK
 606  *    The 16bit RegQueryValue doesn't handle selectorblocks anyway, so we just
 607  *    mask out the high 16 bit.  This (not so much incidently) hopefully fixes
 608  *    Aldus FH4)
 609  */
 610 DWORD WINAPI RegQueryValue16( HKEY hkey, LPCSTR name, LPSTR data, LPDWORD count
 611 )
 612 {
 613     fix_win16_hkey( &hkey );
 614     if (count) *count &= 0xffff;
 615     return RegQueryValueA( hkey, name, data, count );
 616 }
 617
 618 /******************************************************************************
 619  *           RegEnumKey   [SHELL.7]
 620  */
 621 DWORD WINAPI RegEnumKey16( HKEY hkey, DWORD index, LPSTR name, DWORD name_len )
 622 {
 623     fix_win16_hkey( &hkey );
 624     return RegEnumKeyA( hkey, index, name, name_len );
 625 }
 626
 627 /*************************************************************************
 628  *           SHELL_Execute16 [Internal]
 629  */
 630 static UINT SHELL_Execute16(char *lpCmd, LPSHELLEXECUTEINFOA sei, BOOL shWait)
 631 {
 632     UINT ret = WinExec16(lpCmd, sei->nShow);
 633     sei->hInstApp = HINSTANCE_32(ret);
 634     return ret;
 635 }
 636
 637 /*************************************************************************
 638  *                              ShellExecute            [SHELL.20]
 639  */
 640 HINSTANCE16 WINAPI ShellExecute16( HWND16 hWnd, LPCSTR lpOperation,
 641                                    LPCSTR lpFile, LPCSTR lpParameters,
 642                                    LPCSTR lpDirectory, INT16 iShowCmd )
 643 {
 644     SHELLEXECUTEINFOA sei;
 645     HANDLE hProcess = 0;
 646
 647     sei.cbSize = sizeof(sei);
 648     sei.fMask = 0;
 649     sei.hwnd = HWND_32(hWnd);
 650     sei.lpVerb = lpOperation;
 651     sei.lpFile = lpFile;
 652     sei.lpParameters = lpParameters;
 653     sei.lpDirectory = lpDirectory;
 654     sei.nShow = iShowCmd;
 655     sei.lpIDList = 0;
 656     sei.lpClass = 0;
 657     sei.hkeyClass = 0;
 658     sei.dwHotKey = 0;
 659     sei.hProcess = hProcess;
 660
 661     ShellExecuteExA32 (&sei, SHELL_Execute16);
 662     return HINSTANCE_16(sei.hInstApp);
 663 }