dlls/shell.dll16/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 <stdarg.h>
  24 #include <stdlib.h>
  25 #include <string.h>
  26 #include <ctype.h>
  27
  28 #include "windef.h"
  29 #include "winbase.h"
  30 #include "winreg.h"
  31 #include "wownt32.h"
  32 #include "shellapi.h"
  33 #include "winuser.h"
  34 #include "wingdi.h"
  35 #include "shlobj.h"
  36 #include "shlwapi.h"
  37 #include "winternl.h"
  38
  39 #include "wine/winbase16.h"
  40 #include "wine/winuser16.h"
  41
  42 #include "wine/debug.h"
  43
  44 WINE_DEFAULT_DEBUG_CHANNEL(shell);
  45
  46 extern HINSTANCE WINAPI WOWShellExecute(HWND hWnd, LPCSTR lpOperation,LPCSTR lpFile,
  47                                         LPCSTR lpParameters,LPCSTR lpDirectory,
  48                                         INT iShowCmd, void *callback);
  49
  50 #define HINSTANCE_32(h16)       ((HINSTANCE)(ULONG_PTR)(h16))
  51 #define HINSTANCE_16(h32)       (LOWORD(h32))
  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
  70 static HICON convert_icon_to_32( HICON16 icon16 )
  71 {
  72     CURSORICONINFO *info = GlobalLock16( icon16 );
  73     void *and_bits = info + 1;
  74     void *xor_bits = (BYTE *)and_bits + info->nHeight * 2 * ((info->nWidth + 15) / 16);
  75     HICON ret = CreateIcon( 0, info->nWidth, info->nHeight, info->bPlanes, info->bBitsPerPixel,
  76                             and_bits, xor_bits );
  77     GlobalUnlock16( icon16 );
  78     return ret;
  79 }
  80
  81 static HICON16 convert_icon_to_16( HINSTANCE16 inst, HICON icon )
  82 {
  83     static HICON16 (WINAPI *pCreateIcon16)(HINSTANCE16,INT16,INT16,BYTE,BYTE,LPCVOID,LPCVOID);
  84     ICONINFO info;
  85     BITMAP bm;
  86     UINT and_size, xor_size;
  87     void *xor_bits = NULL, *and_bits;
  88     HICON16 handle = 0;
  89
  90     if (!pCreateIcon16 &&
  91         !(pCreateIcon16 = (void *)GetProcAddress( GetModuleHandleA("user.exe16"), "CreateIcon16" )))
  92         return 0;
  93
  94     if (!(GetIconInfo( icon, &info ))) return 0;
  95     GetObjectW( info.hbmMask, sizeof(bm), &bm );
  96     and_size = bm.bmHeight * bm.bmWidthBytes;
  97     if (!(and_bits = HeapAlloc( GetProcessHeap(), 0, and_size ))) goto done;
  98     GetBitmapBits( info.hbmMask, and_size, and_bits );
  99     if (info.hbmColor)
 100     {
 101         GetObjectW( info.hbmColor, sizeof(bm), &bm );
 102         xor_size = bm.bmHeight * bm.bmWidthBytes;
 103         if (!(xor_bits = HeapAlloc( GetProcessHeap(), 0, xor_size ))) goto done;
 104         GetBitmapBits( info.hbmColor, xor_size, xor_bits );
 105     }
 106     else
 107     {
 108         bm.bmHeight /= 2;
 109         xor_bits = (char *)and_bits + and_size / 2;
 110     }
 111     handle = pCreateIcon16( inst, bm.bmWidth, bm.bmHeight, bm.bmPlanes, bm.bmBitsPixel,
 112                             and_bits, xor_bits );
 113 done:
 114     HeapFree( GetProcessHeap(), 0, and_bits );
 115     if (info.hbmColor)
 116     {
 117         HeapFree( GetProcessHeap(), 0, xor_bits );
 118         DeleteObject( info.hbmColor );
 119     }
 120     DeleteObject( info.hbmMask );
 121     DestroyIcon( icon );
 122     return handle;
 123 }
 124
 125 /***********************************************************************
 126  * DllEntryPoint [SHELL.101]
 127  *
 128  * Initialization code for shell.dll. Automatically loads the
 129  * 32-bit shell32.dll to allow thunking up to 32-bit code.
 130  *
 131  * RETURNS
 132  *  Success: TRUE. Initialization completed successfully.
 133  *  Failure: FALSE.
 134  */
 135 BOOL WINAPI SHELL_DllEntryPoint(DWORD Reason, HINSTANCE16 hInst,
 136                                 WORD ds, WORD HeapSize, DWORD res1, WORD res2)
 137 {
 138     return TRUE;
 139 }
 140
 141 /*************************************************************************
 142  *                              DragAcceptFiles         [SHELL.9]
 143  */
 144 void WINAPI DragAcceptFiles16(HWND16 hWnd, BOOL16 b)
 145 {
 146   DragAcceptFiles(HWND_32(hWnd), b);
 147 }
 148
 149 /*************************************************************************
 150  *                              DragQueryFile           [SHELL.11]
 151  */
 152 UINT16 WINAPI DragQueryFile16(
 153         HDROP16 hDrop,
 154         WORD wFile,
 155         LPSTR lpszFile,
 156         WORD wLength)
 157 {
 158         LPSTR lpDrop;
 159         UINT i = 0;
 160         LPDROPFILESTRUCT16 lpDropFileStruct = (LPDROPFILESTRUCT16) GlobalLock16(hDrop);
 161
 162         TRACE("(%04x, %x, %p, %u)\n", hDrop,wFile,lpszFile,wLength);
 163
 164         if(!lpDropFileStruct) goto end;
 165
 166         lpDrop = (LPSTR) lpDropFileStruct + lpDropFileStruct->wSize;
 167
 168         while (i++ < wFile)
 169         {
 170           while (*lpDrop++); /* skip filename */
 171           if (!*lpDrop)
 172           {
 173             i = (wFile == 0xFFFF) ? i : 0;
 174             goto end;
 175           }
 176         }
 177
 178         i = strlen(lpDrop);
 179         if (!lpszFile ) goto end;   /* needed buffer size */
 180         lstrcpynA (lpszFile, lpDrop, wLength);
 181 end:
 182         GlobalUnlock16(hDrop);
 183         return i;
 184 }
 185
 186 /*************************************************************************
 187  *                              DragFinish              [SHELL.12]
 188  */
 189 void WINAPI DragFinish16(HDROP16 h)
 190 {
 191     TRACE("\n");
 192     GlobalFree16(h);
 193 }
 194
 195
 196 /*************************************************************************
 197  *                              DragQueryPoint          [SHELL.13]
 198  */
 199 BOOL16 WINAPI DragQueryPoint16(HDROP16 hDrop, POINT16 *p)
 200 {
 201   LPDROPFILESTRUCT16 lpDropFileStruct;
 202   BOOL16           bRet;
 203   TRACE("\n");
 204   lpDropFileStruct = (LPDROPFILESTRUCT16) GlobalLock16(hDrop);
 205
 206   memcpy(p,&lpDropFileStruct->ptMousePos,sizeof(POINT16));
 207   bRet = lpDropFileStruct->fInNonClientArea;
 208
 209   GlobalUnlock16(hDrop);
 210   return bRet;
 211 }
 212
 213 /*************************************************************************
 214  *             FindExecutable   (SHELL.21)
 215  */
 216 HINSTANCE16 WINAPI FindExecutable16( LPCSTR lpFile, LPCSTR lpDirectory,
 217                                      LPSTR lpResult )
 218 { return HINSTANCE_16(FindExecutableA( lpFile, lpDirectory, lpResult ));
 219 }
 220
 221 /*************************************************************************
 222  *             AboutDlgProc   (SHELL.33)
 223  */
 224 BOOL16 WINAPI AboutDlgProc16( HWND16 hWnd, UINT16 msg, WPARAM16 wParam,
 225                                LPARAM lParam )
 226 {
 227     FIXME( "stub\n" );
 228     return FALSE;
 229 }
 230
 231
 232 /*************************************************************************
 233  *             ShellAbout   (SHELL.22)
 234  */
 235 BOOL16 WINAPI ShellAbout16( HWND16 hWnd, LPCSTR szApp, LPCSTR szOtherStuff, HICON16 icon16 )
 236 {
 237     HICON icon = convert_icon_to_32( icon16 );
 238     BOOL ret = ShellAboutA( HWND_32(hWnd), szApp, szOtherStuff, icon );
 239     DestroyIcon( icon );
 240     return ret;
 241 }
 242
 243 /*************************************************************************
 244  *                      InternalExtractIcon             [SHELL.39]
 245  *
 246  * This abortion is called directly by Progman
 247  */
 248 HGLOBAL16 WINAPI InternalExtractIcon16(HINSTANCE16 hInstance,
 249                                      LPCSTR lpszExeFileName, UINT16 nIconIndex, WORD n )
 250 {
 251     HGLOBAL16 hRet = 0;
 252     HICON16 *RetPtr = NULL;
 253
 254         TRACE("(%04x,file %s,start %d,extract %d\n",
 255                        hInstance, lpszExeFileName, nIconIndex, n);
 256
 257         if (!n)
 258           return 0;
 259
 260         hRet = GlobalAlloc16(GMEM_FIXED | GMEM_ZEROINIT, sizeof(*RetPtr) * n);
 261         RetPtr = GlobalLock16(hRet);
 262
 263         if (nIconIndex == (UINT16)-1)  /* get number of icons */
 264         {
 265           RetPtr[0] = PrivateExtractIconsA(lpszExeFileName, 0, 0, 0, NULL, NULL, 0, LR_DEFAULTCOLOR);
 266         }
 267         else
 268         {
 269           UINT ret;
 270           HICON *icons;
 271
 272           icons = HeapAlloc(GetProcessHeap(), 0, n * sizeof(*icons));
 273           ret = PrivateExtractIconsA(lpszExeFileName, nIconIndex,
 274                                      GetSystemMetrics(SM_CXICON),
 275                                      GetSystemMetrics(SM_CYICON),
 276                                      icons, NULL, n, LR_DEFAULTCOLOR);
 277           if ((ret != 0xffffffff) && ret)
 278           {
 279             int i;
 280             for (i = 0; i < n; i++) RetPtr[i] = convert_icon_to_16(hInstance, icons[i]);
 281           }
 282           else
 283           {
 284             GlobalFree16(hRet);
 285             hRet = 0;
 286           }
 287           HeapFree(GetProcessHeap(), 0, icons);
 288         }
 289         return hRet;
 290 }
 291
 292 /*************************************************************************
 293  *             ExtractIcon   (SHELL.34)
 294  */
 295 HICON16 WINAPI ExtractIcon16( HINSTANCE16 hInstance, LPCSTR lpszExeFileName,
 296         UINT16 nIconIndex )
 297 {   TRACE("\n");
 298     return convert_icon_to_16( hInstance, ExtractIconA(NULL, lpszExeFileName, nIconIndex) );
 299 }
 300
 301 /*************************************************************************
 302  *             ExtractIconEx   (SHELL.40)
 303  */
 304 UINT16 WINAPI ExtractIconEx16(
 305         LPCSTR lpszFile, INT16 nIconIndex, HICON16 *phiconLarge,
 306         HICON16 *phiconSmall, UINT16 nIcons
 307 ) {
 308     HICON       *ilarge,*ismall;
 309     int         i, ret;
 310
 311     if (phiconLarge)
 312         ilarge = HeapAlloc(GetProcessHeap(),0,nIcons*sizeof(HICON));
 313     else
 314         ilarge = NULL;
 315     if (phiconSmall)
 316         ismall = HeapAlloc(GetProcessHeap(),0,nIcons*sizeof(HICON));
 317     else
 318         ismall = NULL;
 319     ret = ExtractIconExA(lpszFile,nIconIndex,ilarge,ismall,nIcons);
 320     if (ilarge) {
 321         for (i=0;i<ret;i++)
 322             phiconLarge[i] = convert_icon_to_16(0, ilarge[i]);
 323         HeapFree(GetProcessHeap(),0,ilarge);
 324     }
 325     if (ismall) {
 326         for (i=0;i<ret;i++)
 327             phiconSmall[i] = convert_icon_to_16(0, ismall[i]);
 328         HeapFree(GetProcessHeap(),0,ismall);
 329     }
 330     return ret;
 331 }
 332
 333 /*************************************************************************
 334  *                              ExtractAssociatedIcon   [SHELL.36]
 335  *
 336  * Return icon for given file (either from file itself or from associated
 337  * executable) and patch parameters if needed.
 338  */
 339 HICON16 WINAPI ExtractAssociatedIcon16(HINSTANCE16 hInst, LPSTR lpIconPath, LPWORD lpiIcon)
 340 {
 341     return convert_icon_to_16( hInst, ExtractAssociatedIconA(NULL, lpIconPath, lpiIcon) );
 342 }
 343
 344 /*************************************************************************
 345  *                              FindEnvironmentString   [SHELL.38]
 346  *
 347  * Returns a pointer into the DOS environment... Ugh.
 348  */
 349 static LPSTR SHELL_FindString(LPSTR lpEnv, LPCSTR entry)
 350 { UINT16 l;
 351
 352   TRACE("\n");
 353
 354   l = strlen(entry);
 355   for( ; *lpEnv ; lpEnv+=strlen(lpEnv)+1 )
 356   { if( _strnicmp(lpEnv, entry, l) )
 357       continue;
 358         if( !*(lpEnv+l) )
 359             return (lpEnv + l);                 /* empty entry */
 360         else if ( *(lpEnv+l)== '=' )
 361             return (lpEnv + l + 1);
 362     }
 363     return NULL;
 364 }
 365
 366 /**********************************************************************/
 367
 368 SEGPTR WINAPI FindEnvironmentString16(LPCSTR str)
 369 { SEGPTR  spEnv;
 370   LPSTR lpEnv,lpString;
 371   TRACE("\n");
 372
 373   spEnv = GetDOSEnvironment16();
 374
 375   lpEnv = MapSL(spEnv);
 376   lpString = (spEnv)?SHELL_FindString(lpEnv, str):NULL;
 377
 378     if( lpString )              /*  offset should be small enough */
 379         return spEnv + (lpString - lpEnv);
 380     return 0;
 381 }
 382
 383 /*************************************************************************
 384  *                              DoEnvironmentSubst      [SHELL.37]
 385  *
 386  * Replace %KEYWORD% in the str with the value of variable KEYWORD
 387  * from "DOS" environment. If it is not found the %KEYWORD% is left
 388  * intact. If the buffer is too small, str is not modified.
 389  *
 390  * PARAMS
 391  *  str        [I] '\0' terminated string with %keyword%.
 392  *             [O] '\0' terminated string with %keyword% substituted.
 393  *  length     [I] size of str.
 394  *
 395  * RETURNS
 396  *  str length in the LOWORD and 1 in HIWORD if subst was successful.
 397  */
 398 DWORD WINAPI DoEnvironmentSubst16(LPSTR str,WORD length)
 399 {
 400   LPSTR   lpEnv = MapSL(GetDOSEnvironment16());
 401   LPSTR   lpstr = str;
 402   LPSTR   lpend;
 403   LPSTR   lpBuffer = HeapAlloc( GetProcessHeap(), 0, length);
 404   WORD    bufCnt = 0;
 405   WORD    envKeyLen;
 406   LPSTR   lpKey;
 407   WORD    retStatus = 0;
 408   WORD    retLength = length;
 409
 410   CharToOemA(str,str);
 411
 412   TRACE("accept %s\n", str);
 413
 414   while( *lpstr && bufCnt <= length - 1 ) {
 415      if ( *lpstr != '%' ) {
 416         lpBuffer[bufCnt++] = *lpstr++;
 417         continue;
 418      }
 419
 420      for( lpend = lpstr + 1; *lpend && *lpend != '%'; lpend++) /**/;
 421
 422      envKeyLen = lpend - lpstr - 1;
 423      if( *lpend != '%' || envKeyLen == 0)
 424         goto err; /* "%\0" or "%%" found; back off and whine */
 425
 426      *lpend = '\0';
 427      lpKey = SHELL_FindString(lpEnv, lpstr+1);
 428      *lpend = '%';
 429      if( lpKey ) {
 430          int l = strlen(lpKey);
 431
 432          if( bufCnt + l > length - 1 )
 433                 goto err;
 434
 435         memcpy(lpBuffer + bufCnt, lpKey, l);
 436         bufCnt += l;
 437      } else { /* Keyword not found; Leave the %KEYWORD% intact */
 438         if( bufCnt + envKeyLen + 2 > length - 1 )
 439             goto err;
 440
 441          memcpy(lpBuffer + bufCnt, lpstr, envKeyLen + 2);
 442         bufCnt += envKeyLen + 2;
 443      }
 444
 445      lpstr = lpend + 1;
 446   }
 447
 448   if (!*lpstr && bufCnt <= length - 1) {
 449       memcpy(str,lpBuffer, bufCnt);
 450       str[bufCnt] = '\0';
 451       retLength = bufCnt + 1;
 452       retStatus = 1;
 453   }
 454
 455   err:
 456   if (!retStatus)
 457       WARN("-- Env subst aborted - string too short or invalid input\n");
 458   TRACE("-- return %s\n", str);
 459
 460   OemToCharA(str,str);
 461   HeapFree( GetProcessHeap(), 0, lpBuffer);
 462
 463   return (DWORD)MAKELONG(retLength, retStatus);
 464 }
 465
 466 /*************************************************************************
 467  *                              SHELL_HookProc
 468  *
 469  * 32-bit version of the system-wide WH_SHELL hook.
 470  */
 471 static LRESULT WINAPI SHELL_HookProc(INT code, WPARAM wParam, LPARAM lParam)
 472 {
 473     TRACE("%i, %x, %08Ix\n", code, wParam, lParam );
 474
 475     if (SHELL_hWnd)
 476     {
 477         switch( code )
 478         {
 479         case HSHELL_WINDOWCREATED:
 480             PostMessageA( SHELL_hWnd, uMsgWndCreated, wParam, 0 );
 481             break;
 482         case HSHELL_WINDOWDESTROYED:
 483             PostMessageA( SHELL_hWnd, uMsgWndDestroyed, wParam, 0 );
 484             break;
 485         case HSHELL_ACTIVATESHELLWINDOW:
 486             PostMessageA( SHELL_hWnd, uMsgShellActivate, wParam, 0 );
 487             break;
 488         }
 489     }
 490     return CallNextHookEx( SHELL_hHook, code, wParam, lParam );
 491 }
 492
 493 /*************************************************************************
 494  *                              ShellHookProc           [SHELL.103]
 495  * System-wide WH_SHELL hook.
 496  */
 497 LRESULT WINAPI ShellHookProc16(INT16 code, WPARAM16 wParam, LPARAM lParam)
 498 {
 499     return SHELL_HookProc( code, wParam, lParam );
 500 }
 501
 502 /*************************************************************************
 503  *                              RegisterShellHook       [SHELL.102]
 504  */
 505 BOOL WINAPI RegisterShellHook16(HWND16 hWnd, UINT16 uAction)
 506 {
 507     TRACE("%04x [%u]\n", hWnd, uAction );
 508
 509     switch( uAction )
 510     {
 511     case 2:  /* register hWnd as a shell window */
 512         if( !SHELL_hHook )
 513         {
 514             SHELL_hHook = SetWindowsHookExA( WH_SHELL, SHELL_HookProc,
 515                                              GetModuleHandleA("shell32.dll"), 0 );
 516             if ( SHELL_hHook )
 517             {
 518                 uMsgWndCreated = RegisterWindowMessageA( lpstrMsgWndCreated );
 519                 uMsgWndDestroyed = RegisterWindowMessageA( lpstrMsgWndDestroyed );
 520                 uMsgShellActivate = RegisterWindowMessageA( lpstrMsgShellActivate );
 521             }
 522             else
 523                 WARN("-- unable to install ShellHookProc()!\n");
 524         }
 525
 526         if ( SHELL_hHook )
 527             return ((SHELL_hWnd = HWND_32(hWnd)) != 0);
 528         break;
 529
 530     default:
 531         WARN("-- unknown code %i\n", uAction );
 532         SHELL_hWnd = 0; /* just in case */
 533     }
 534     return FALSE;
 535 }
 536
 537
 538 /***********************************************************************
 539  *           DriveType   (SHELL.262)
 540  */
 541 UINT16 WINAPI DriveType16( UINT16 drive )
 542 {
 543     UINT ret;
 544     char path[] = "A:\\";
 545     path[0] += drive;
 546     ret = GetDriveTypeA(path);
 547     switch(ret)  /* some values are not supported in Win16 */
 548     {
 549     case DRIVE_CDROM:
 550         ret = DRIVE_REMOTE;
 551         break;
 552     case DRIVE_NO_ROOT_DIR:
 553         ret = DRIVE_UNKNOWN;
 554         break;
 555     }
 556     return ret;
 557 }
 558
 559
 560 /* 0 and 1 are valid rootkeys in win16 shell.dll and are used by
 561  * some programs. Do not remove those cases. -MM
 562  */
 563 static inline void fix_win16_hkey( HKEY *hkey )
 564 {
 565     if (*hkey == 0 || *hkey == (HKEY)1) *hkey = HKEY_CLASSES_ROOT;
 566 }
 567
 568 /******************************************************************************
 569  *           RegOpenKey   [SHELL.1]
 570  */
 571 DWORD WINAPI RegOpenKey16( HKEY hkey, LPCSTR name, PHKEY retkey )
 572 {
 573     fix_win16_hkey( &hkey );
 574     return RegOpenKeyA( hkey, name, retkey );
 575 }
 576
 577 /******************************************************************************
 578  *           RegCreateKey   [SHELL.2]
 579  */
 580 DWORD WINAPI RegCreateKey16( HKEY hkey, LPCSTR name, PHKEY retkey )
 581 {
 582     fix_win16_hkey( &hkey );
 583     return RegCreateKeyA( hkey, name, retkey );
 584 }
 585
 586 /******************************************************************************
 587  *           RegCloseKey   [SHELL.3]
 588  */
 589 DWORD WINAPI RegCloseKey16( HKEY hkey )
 590 {
 591     fix_win16_hkey( &hkey );
 592     return RegCloseKey( hkey );
 593 }
 594
 595 /******************************************************************************
 596  *           RegDeleteKey   [SHELL.4]
 597  */
 598 DWORD WINAPI RegDeleteKey16( HKEY hkey, LPCSTR name )
 599 {
 600     fix_win16_hkey( &hkey );
 601     return RegDeleteKeyA( hkey, name );
 602 }
 603
 604 /******************************************************************************
 605  *           RegSetValue   [SHELL.5]
 606  */
 607 DWORD WINAPI RegSetValue16( HKEY hkey, LPCSTR name, DWORD type, LPCSTR data, DWORD count )
 608 {
 609     fix_win16_hkey( &hkey );
 610     return RegSetValueA( hkey, name, type, data, count );
 611 }
 612
 613 /******************************************************************************
 614  *           RegQueryValue   [SHELL.6]
 615  *
 616  * NOTES
 617  *    Is this HACK still applicable?
 618  *
 619  * HACK
 620  *    The 16bit RegQueryValue doesn't handle selectorblocks anyway, so we just
 621  *    mask out the high 16 bit.  This (not so much incidentally) hopefully fixes
 622  *    Aldus FH4)
 623  */
 624 DWORD WINAPI RegQueryValue16( HKEY hkey, LPCSTR name, LPSTR data, LPDWORD count
 625 )
 626 {
 627     fix_win16_hkey( &hkey );
 628     if (count) *count &= 0xffff;
 629     return RegQueryValueA( hkey, name, data, (LONG*) count );
 630 }
 631
 632 /******************************************************************************
 633  *           RegEnumKey   [SHELL.7]
 634  */
 635 DWORD WINAPI RegEnumKey16( HKEY hkey, DWORD index, LPSTR name, DWORD name_len )
 636 {
 637     fix_win16_hkey( &hkey );
 638     return RegEnumKeyA( hkey, index, name, name_len );
 639 }
 640
 641 /*************************************************************************
 642  *           SHELL_Execute16 [Internal]
 643  */
 644 static UINT_PTR SHELL_Execute16(const WCHAR *lpCmd, WCHAR *env, BOOL shWait,
 645                             const SHELLEXECUTEINFOW *psei, LPSHELLEXECUTEINFOW psei_out)
 646 {
 647     UINT ret;
 648     char sCmd[MAX_PATH];
 649     WideCharToMultiByte(CP_ACP, 0, lpCmd, -1, sCmd, MAX_PATH, NULL, NULL);
 650     ret = WinExec16(sCmd, (UINT16)psei->nShow);
 651     psei_out->hInstApp = HINSTANCE_32(ret);
 652     return ret;
 653 }
 654
 655 /*************************************************************************
 656  *                              ShellExecute            [SHELL.20]
 657  */
 658 HINSTANCE16 WINAPI ShellExecute16( HWND16 hWnd, LPCSTR lpOperation,
 659                                    LPCSTR lpFile, LPCSTR lpParameters,
 660                                    LPCSTR lpDirectory, INT16 iShowCmd )
 661 {
 662     return HINSTANCE_16( WOWShellExecute( HWND_32(hWnd), lpOperation, lpFile, lpParameters,
 663                                           lpDirectory, iShowCmd, SHELL_Execute16 ));
 664 }
 665
 666
 667 /*************************************************************************
 668  * RunDLL_CallEntry16
 669  *
 670  * Only exported from shell32 on Windows, probably imported
 671  * from shell through the 16/32 thunks.
 672  */
 673 void WINAPI RunDLL_CallEntry16( DWORD proc, HWND hwnd, HINSTANCE inst, LPSTR cmdline, INT cmdshow )
 674 {
 675     WORD args[5];
 676     SEGPTR cmdline_seg;
 677
 678     TRACE( "proc %lx hwnd %p inst %p cmdline %s cmdshow %d\n",
 679            proc, hwnd, inst, debugstr_a(cmdline), cmdshow );
 680
 681     cmdline_seg = MapLS( cmdline );
 682     args[4] = HWND_16(hwnd);
 683     args[3] = MapHModuleLS(inst);
 684     args[2] = SELECTOROF(cmdline_seg);
 685     args[1] = OFFSETOF(cmdline_seg);
 686     args[0] = cmdshow;
 687     WOWCallback16Ex( proc, WCB16_PASCAL, sizeof(args), args, NULL );
 688     UnMapLS( cmdline_seg );
 689 }