git.oblomov.eu Git - wine/blob - dlls/shell32/shell.c

   1 /*
   2  *                              Shell Library Functions
   3  *
   4  *  1998 Marcus Meissner
   5  */
   6 #include <assert.h>
   7 #include <stdlib.h>
   8 #include <string.h>
   9 #include <unistd.h>
  10 #include <ctype.h>
  11 #include "windef.h"
  12 #include "wingdi.h"
  13 #include "wine/winuser16.h"
  14 #include "wine/winbase16.h"
  15 #include "wine/shell16.h"
  16 #include "winerror.h"
  17 #include "file.h"
  18 #include "heap.h"
  19 #include "ldt.h"
  20 #include "module.h"
  21 #include "neexe.h"
  22 #include "dlgs.h"
  23 #include "cursoricon.h"
  24 #include "shellapi.h"
  25 #include "shlobj.h"
  26 #include "debugtools.h"
  27 #include "winreg.h"
  28 #include "syslevel.h"
  29 #include "imagelist.h"
  30 #include "tchar.h"
  31
  32 DEFAULT_DEBUG_CHANNEL(shell)
  33 DECLARE_DEBUG_CHANNEL(exec)
  34
  35 /* .ICO file ICONDIR definitions */
  36
  37 #include "pshpack1.h"
  38
  39 typedef struct
  40 {
  41     BYTE        bWidth;          /* Width, in pixels, of the image      */
  42     BYTE        bHeight;         /* Height, in pixels, of the image     */
  43     BYTE        bColorCount;     /* Number of colors in image (0 if >=8bpp) */
  44     BYTE        bReserved;       /* Reserved ( must be 0)               */
  45     WORD        wPlanes;         /* Color Planes                        */
  46     WORD        wBitCount;       /* Bits per pixel                      */
  47     DWORD       dwBytesInRes;    /* How many bytes in this resource?    */
  48     DWORD       dwImageOffset;   /* Where in the file is this image?    */
  49 } icoICONDIRENTRY, *LPicoICONDIRENTRY;
  50
  51 typedef struct
  52 {
  53     WORD            idReserved;   /* Reserved (must be 0)               */
  54     WORD            idType;       /* Resource Type (1 for icons)        */
  55     WORD            idCount;      /* How many images?                   */
  56     icoICONDIRENTRY idEntries[1]; /* An entry for each image (idCount of 'em) */
  57 } icoICONDIR, *LPicoICONDIR;
  58
  59 #include "poppack.h"
  60
  61 static const char*      lpstrMsgWndCreated = "OTHERWINDOWCREATED";
  62 static const char*      lpstrMsgWndDestroyed = "OTHERWINDOWDESTROYED";
  63 static const char*      lpstrMsgShellActivate = "ACTIVATESHELLWINDOW";
  64
  65 static HWND16   SHELL_hWnd = 0;
  66 static HHOOK    SHELL_hHook = 0;
  67 static UINT16   uMsgWndCreated = 0;
  68 static UINT16   uMsgWndDestroyed = 0;
  69 static UINT16   uMsgShellActivate = 0;
  70 HINSTANCE16     SHELL_hInstance = 0;
  71 HINSTANCE SHELL_hInstance32;
  72 static int SHELL_Attach = 0;
  73
  74 /***********************************************************************
  75  * SHELL_DllEntryPoint [SHELL.entry]
  76  *
  77  * Initialization code for shell.dll. Automatically loads the
  78  * 32-bit shell32.dll to allow thunking up to 32-bit code.
  79  *
  80  * RETURNS:
  81  */
  82 BOOL WINAPI SHELL_DllEntryPoint(DWORD Reason, HINSTANCE16 hInst,
  83                                 WORD ds, WORD HeapSize, DWORD res1, WORD res2)
  84 {
  85     TRACE("(%08lx, %04x, %04x, %04x, %08lx, %04x)\n",
  86           Reason, hInst, ds, HeapSize, res1, res2);
  87
  88     switch(Reason)
  89     {
  90     case DLL_PROCESS_ATTACH:
  91         SHELL_Attach++;
  92         if (SHELL_hInstance)
  93         {
  94             ERR("shell.dll instantiated twice!\n");
  95             /*
  96              * We should return FALSE here, but that will break
  97              * most apps that use CreateProcess because we do
  98              * not yet support seperate address-spaces.
  99              */
 100             return TRUE;
 101         }
 102
 103         SHELL_hInstance = hInst;
 104         if(!SHELL_hInstance32)
 105         {
 106             if(!(SHELL_hInstance32 = LoadLibraryA("shell32.dll")))
 107             {
 108                 ERR("Could not load sibling shell32.dll\n");
 109                 return FALSE;
 110             }
 111         }
 112         break;
 113
 114     case DLL_PROCESS_DETACH:
 115         if(!--SHELL_Attach)
 116         {
 117             SHELL_hInstance = 0;
 118             if(SHELL_hInstance32)
 119                 FreeLibrary(SHELL_hInstance32);
 120         }
 121         break;
 122     }
 123     return TRUE;
 124 }
 125
 126 /*************************************************************************
 127  *                              DragAcceptFiles32               [SHELL32.54]
 128  */
 129 void WINAPI DragAcceptFiles(HWND hWnd, BOOL b)
 130 {
 131   LONG exstyle;
 132
 133
 134   if( !IsWindow(hWnd) )
 135         return;
 136   exstyle = GetWindowLongA(hWnd,GWL_EXSTYLE);
 137   if (b)exstyle |= WS_EX_ACCEPTFILES;
 138   else  exstyle &= ~WS_EX_ACCEPTFILES;
 139   SetWindowLongA(hWnd,GWL_EXSTYLE,exstyle);
 140 }
 141
 142 /*************************************************************************
 143  *                              DragAcceptFiles16               [SHELL.9]
 144  */
 145 void WINAPI DragAcceptFiles16(HWND16 hWnd, BOOL16 b)
 146 {
 147   DragAcceptFiles(hWnd, b);
 148 }
 149
 150 /*************************************************************************
 151  *                              SHELL_DragQueryFile     [internal]
 152  *
 153  */
 154 static UINT SHELL_DragQueryFile(LPSTR lpDrop, LPWSTR lpwDrop, UINT lFile,
 155                                   LPSTR lpszFile, LPWSTR lpszwFile, UINT lLength)
 156 {
 157     UINT i;
 158
 159     i = 0;
 160     if (lpDrop) {
 161     while (i++ < lFile) {
 162         while (*lpDrop++); /* skip filename */
 163         if (!*lpDrop)
 164           return (lFile == 0xFFFFFFFF) ? i : 0;
 165       }
 166     }
 167     if (lpwDrop) {
 168       while (i++ < lFile) {
 169         while (*lpwDrop++); /* skip filename */
 170         if (!*lpwDrop)
 171           return (lFile == 0xFFFFFFFF) ? i : 0;
 172       }
 173     }
 174
 175     if (lpDrop)  i = lstrlenA(lpDrop);
 176     if (lpwDrop) i = lstrlenW(lpwDrop);
 177     i++;
 178     if (!lpszFile && !lpszwFile) {
 179       return i;   /* needed buffer size */
 180     }
 181     i = (lLength > i) ? i : lLength;
 182     if (lpszFile) {
 183       if (lpDrop) lstrcpynA (lpszFile,  lpDrop,  i);
 184       else        lstrcpynWtoA(lpszFile,  lpwDrop, i);
 185     } else {
 186       if (lpDrop) lstrcpynAtoW(lpszwFile, lpDrop,  i);
 187       else        lstrcpynW (lpszwFile, lpwDrop, i);
 188     }
 189     return i;
 190 }
 191
 192 /*************************************************************************
 193  *                              DragQueryFile32A        [SHELL32.81] [shell32.82]
 194  */
 195 UINT WINAPI DragQueryFileA(HDROP hDrop, UINT lFile, LPSTR lpszFile,
 196                               UINT lLength)
 197 { /* hDrop is a global memory block allocated with GMEM_SHARE
 198      * with DROPFILESTRUCT as a header and filenames following
 199      * it, zero length filename is in the end */
 200
 201     LPDROPFILESTRUCT lpDropFileStruct;
 202     LPSTR lpCurrent;
 203     UINT i;
 204
 205     TRACE("(%08x, %x, %p, %u)\n",       hDrop,lFile,lpszFile,lLength);
 206
 207     lpDropFileStruct = (LPDROPFILESTRUCT) GlobalLock(hDrop);
 208     if(!lpDropFileStruct)
 209       return 0;
 210
 211     lpCurrent = (LPSTR) lpDropFileStruct + lpDropFileStruct->lSize;
 212     i = SHELL_DragQueryFile(lpCurrent, NULL, lFile, lpszFile, NULL, lLength);
 213     GlobalUnlock(hDrop);
 214     return i;
 215 }
 216
 217 /*************************************************************************
 218  *                              DragQueryFile32W        [shell32.133]
 219  */
 220 UINT WINAPI DragQueryFileW(HDROP hDrop, UINT lFile, LPWSTR lpszwFile,
 221                               UINT lLength)
 222 {
 223     LPDROPFILESTRUCT lpDropFileStruct;
 224     LPWSTR lpwCurrent;
 225     UINT i;
 226
 227     TRACE("(%08x, %x, %p, %u)\n",       hDrop,lFile,lpszwFile,lLength);
 228
 229     lpDropFileStruct = (LPDROPFILESTRUCT) GlobalLock(hDrop);
 230     if(!lpDropFileStruct)
 231       return 0;
 232
 233     lpwCurrent = (LPWSTR) lpDropFileStruct + lpDropFileStruct->lSize;
 234     i = SHELL_DragQueryFile(NULL, lpwCurrent, lFile, NULL, lpszwFile,lLength);
 235     GlobalUnlock(hDrop);
 236     return i;
 237 }
 238 /*************************************************************************
 239  *                              DragQueryFile16         [SHELL.11]
 240  */
 241 UINT16 WINAPI DragQueryFile16(HDROP16 hDrop, WORD wFile, LPSTR lpszFile,
 242                             WORD wLength)
 243 { /* hDrop is a global memory block allocated with GMEM_SHARE
 244      * with DROPFILESTRUCT as a header and filenames following
 245      * it, zero length filename is in the end */
 246
 247     LPDROPFILESTRUCT16 lpDropFileStruct;
 248     LPSTR lpCurrent;
 249     WORD  i;
 250
 251     TRACE("(%04x, %x, %p, %u)\n", hDrop,wFile,lpszFile,wLength);
 252
 253     lpDropFileStruct = (LPDROPFILESTRUCT16) GlobalLock16(hDrop);
 254     if(!lpDropFileStruct)
 255       return 0;
 256
 257     lpCurrent = (LPSTR) lpDropFileStruct + lpDropFileStruct->wSize;
 258
 259     i = (WORD)SHELL_DragQueryFile(lpCurrent, NULL, wFile==0xffff?0xffffffff:wFile,
 260                                   lpszFile, NULL, wLength);
 261     GlobalUnlock16(hDrop);
 262     return i;
 263 }
 264
 265
 266
 267 /*************************************************************************
 268  *                              DragFinish32            [SHELL32.80]
 269  */
 270 void WINAPI DragFinish(HDROP h)
 271 {
 272     TRACE("\n");
 273     GlobalFree((HGLOBAL)h);
 274 }
 275
 276 /*************************************************************************
 277  *                              DragFinish16            [SHELL.12]
 278  */
 279 void WINAPI DragFinish16(HDROP16 h)
 280 {
 281     TRACE("\n");
 282     GlobalFree16((HGLOBAL16)h);
 283 }
 284
 285
 286 /*************************************************************************
 287  *                              DragQueryPoint32                [SHELL32.135]
 288  */
 289 BOOL WINAPI DragQueryPoint(HDROP hDrop, POINT *p)
 290 {
 291   LPDROPFILESTRUCT lpDropFileStruct;
 292   BOOL             bRet;
 293   TRACE("\n");
 294   lpDropFileStruct = (LPDROPFILESTRUCT) GlobalLock(hDrop);
 295
 296   memcpy(p,&lpDropFileStruct->ptMousePos,sizeof(POINT));
 297   bRet = lpDropFileStruct->fInNonClientArea;
 298
 299   GlobalUnlock(hDrop);
 300   return bRet;
 301 }
 302
 303 /*************************************************************************
 304  *                              DragQueryPoint16                [SHELL.13]
 305  */
 306 BOOL16 WINAPI DragQueryPoint16(HDROP16 hDrop, POINT16 *p)
 307 {
 308   LPDROPFILESTRUCT16 lpDropFileStruct;
 309   BOOL16           bRet;
 310   TRACE("\n");
 311   lpDropFileStruct = (LPDROPFILESTRUCT16) GlobalLock16(hDrop);
 312
 313   memcpy(p,&lpDropFileStruct->ptMousePos,sizeof(POINT16));
 314   bRet = lpDropFileStruct->fInNonClientArea;
 315
 316   GlobalUnlock16(hDrop);
 317   return bRet;
 318 }
 319
 320 /*************************************************************************
 321  *      SHELL_FindExecutable [Internal]
 322  *
 323  * Utility for code sharing between FindExecutable and ShellExecute
 324  */
 325 HINSTANCE SHELL_FindExecutable( LPCSTR lpFile,
 326                                          LPCSTR lpOperation,
 327                                          LPSTR lpResult)
 328 { char *extension = NULL; /* pointer to file extension */
 329     char tmpext[5];         /* local copy to mung as we please */
 330     char filetype[256];     /* registry name for this filetype */
 331     LONG filetypelen=256;   /* length of above */
 332     char command[256];      /* command from registry */
 333     LONG commandlen=256;    /* This is the most DOS can handle :) */
 334     char buffer[256];       /* Used to GetProfileString */
 335     HINSTANCE retval=31;  /* default - 'No association was found' */
 336     char *tok;              /* token pointer */
 337     int i;                  /* random counter */
 338     char xlpFile[256] = ""; /* result of SearchPath */
 339
 340   TRACE("%s\n", (lpFile != NULL?lpFile:"-") );
 341
 342     lpResult[0]='\0'; /* Start off with an empty return string */
 343
 344     /* trap NULL parameters on entry */
 345     if (( lpFile == NULL ) || ( lpResult == NULL ) || ( lpOperation == NULL ))
 346   { WARN_(exec)("(lpFile=%s,lpResult=%s,lpOperation=%s): NULL parameter\n",
 347            lpFile, lpOperation, lpResult);
 348         return 2; /* File not found. Close enough, I guess. */
 349     }
 350
 351     if (SearchPathA( NULL, lpFile,".exe",sizeof(xlpFile),xlpFile,NULL))
 352   { TRACE("SearchPath32A returned non-zero\n");
 353         lpFile = xlpFile;
 354     }
 355
 356     /* First thing we need is the file's extension */
 357     extension = strrchr( xlpFile, '.' ); /* Assume last "." is the one; */
 358                                         /* File->Run in progman uses */
 359                                         /* .\FILE.EXE :( */
 360   TRACE("xlpFile=%s,extension=%s\n", xlpFile, extension);
 361
 362     if ((extension == NULL) || (extension == &xlpFile[strlen(xlpFile)]))
 363   { WARN("Returning 31 - No association\n");
 364         return 31; /* no association */
 365     }
 366
 367     /* Make local copy & lowercase it for reg & 'programs=' lookup */
 368     lstrcpynA( tmpext, extension, 5 );
 369     CharLowerA( tmpext );
 370   TRACE("%s file\n", tmpext);
 371
 372     /* Three places to check: */
 373     /* 1. win.ini, [windows], programs (NB no leading '.') */
 374     /* 2. Registry, HKEY_CLASS_ROOT\<filetype>\shell\open\command */
 375     /* 3. win.ini, [extensions], extension (NB no leading '.' */
 376     /* All I know of the order is that registry is checked before */
 377     /* extensions; however, it'd make sense to check the programs */
 378     /* section first, so that's what happens here. */
 379
 380     /* See if it's a program - if GetProfileString fails, we skip this
 381      * section. Actually, if GetProfileString fails, we've probably
 382      * got a lot more to worry about than running a program... */
 383     if ( GetProfileStringA("windows", "programs", "exe pif bat com",
 384                                                   buffer, sizeof(buffer)) > 0 )
 385   { for (i=0;i<strlen(buffer); i++) buffer[i]=tolower(buffer[i]);
 386
 387                 tok = strtok(buffer, " \t"); /* ? */
 388                 while( tok!= NULL)
 389                   {
 390                         if (strcmp(tok, &tmpext[1])==0) /* have to skip the leading "." */
 391                           {
 392                                 strcpy(lpResult, xlpFile);
 393                                 /* Need to perhaps check that the file has a path
 394                                  * attached */
 395         TRACE("found %s\n", lpResult);
 396         return 33;
 397
 398                 /* Greater than 32 to indicate success FIXME According to the
 399                  * docs, I should be returning a handle for the
 400                  * executable. Does this mean I'm supposed to open the
 401                  * executable file or something? More RTFM, I guess... */
 402                           }
 403                         tok=strtok(NULL, " \t");
 404                   }
 405           }
 406
 407     /* Check registry */
 408     if (RegQueryValue16( HKEY_CLASSES_ROOT, tmpext, filetype,
 409                          &filetypelen ) == ERROR_SUCCESS )
 410     {
 411         filetype[filetypelen]='\0';
 412         TRACE("File type: %s\n", filetype);
 413
 414         /* Looking for ...buffer\shell\lpOperation\command */
 415         strcat( filetype, "\\shell\\" );
 416         strcat( filetype, lpOperation );
 417         strcat( filetype, "\\command" );
 418
 419         if (RegQueryValue16( HKEY_CLASSES_ROOT, filetype, command,
 420                              &commandlen ) == ERROR_SUCCESS )
 421         {
 422             LPSTR tmp;
 423             char param[256];
 424             LONG paramlen = 256;
 425
 426
 427             /* Get the parameters needed by the application
 428                from the associated ddeexec key */
 429             tmp = strstr(filetype,"command");
 430             tmp[0] = '\0';
 431             strcat(filetype,"ddeexec");
 432
 433             if(RegQueryValue16( HKEY_CLASSES_ROOT, filetype, param,&paramlen ) == ERROR_SUCCESS)
 434             {
 435               strcat(command," ");
 436               strcat(command,param);
 437               commandlen += paramlen;
 438             }
 439
 440             /* Is there a replace() function anywhere? */
 441             command[commandlen]='\0';
 442             strcpy( lpResult, command );
 443             tok=strstr( lpResult, "%1" );
 444             if (tok != NULL)
 445             {
 446                 tok[0]='\0'; /* truncate string at the percent */
 447                 strcat( lpResult, xlpFile ); /* what if no dir in xlpFile? */
 448                 tok=strstr( command, "%1" );
 449                 if ((tok!=NULL) && (strlen(tok)>2))
 450                 {
 451                     strcat( lpResult, &tok[2] );
 452                 }
 453             }
 454             retval=33; /* FIXME see above */
 455         }
 456     }
 457     else /* Check win.ini */
 458     {
 459         /* Toss the leading dot */
 460         extension++;
 461         if ( GetProfileStringA( "extensions", extension, "", command,
 462                                   sizeof(command)) > 0)
 463           {
 464                 if (strlen(command)!=0)
 465                   {
 466                         strcpy( lpResult, command );
 467                         tok=strstr( lpResult, "^" ); /* should be ^.extension? */
 468                         if (tok != NULL)
 469                           {
 470                                 tok[0]='\0';
 471                                 strcat( lpResult, xlpFile ); /* what if no dir in xlpFile? */
 472                                 tok=strstr( command, "^" ); /* see above */
 473                                 if ((tok != NULL) && (strlen(tok)>5))
 474                                   {
 475                                         strcat( lpResult, &tok[5]);
 476                                   }
 477                           }
 478                         retval=33; /* FIXME - see above */
 479                   }
 480           }
 481         }
 482
 483     TRACE("returning %s\n", lpResult);
 484     return retval;
 485 }
 486
 487 /*************************************************************************
 488  *                              ShellExecute16          [SHELL.20]
 489  */
 490 HINSTANCE16 WINAPI ShellExecute16( HWND16 hWnd, LPCSTR lpOperation,
 491                                    LPCSTR lpFile, LPCSTR lpParameters,
 492                                    LPCSTR lpDirectory, INT16 iShowCmd )
 493 {   HINSTANCE16 retval=31;
 494     char old_dir[1024];
 495     char cmd[1024] = "";
 496
 497     TRACE("(%04x,'%s','%s','%s','%s',%x)\n",
 498                 hWnd, lpOperation ? lpOperation:"<null>", lpFile ? lpFile:"<null>",
 499                 lpParameters ? lpParameters : "<null>",
 500                 lpDirectory ? lpDirectory : "<null>", iShowCmd);
 501
 502     if (lpFile==NULL) return 0; /* should not happen */
 503     if (lpOperation==NULL) /* default is open */
 504       lpOperation="open";
 505
 506     if (lpDirectory)
 507     { GetCurrentDirectoryA( sizeof(old_dir), old_dir );
 508         SetCurrentDirectoryA( lpDirectory );
 509     }
 510
 511     /* First try to execute lpFile with lpParameters directly */
 512     strcpy(cmd,lpFile);
 513     strcat(cmd,lpParameters ? lpParameters : "");
 514
 515     SYSLEVEL_ReleaseWin16Lock();
 516     retval = WinExec( cmd, iShowCmd );
 517     SYSLEVEL_RestoreWin16Lock();
 518
 519     /* Unable to execute lpFile directly
 520        Check if we can match an application to lpFile */
 521     if(retval < 31)
 522     {
 523       cmd[0] = '\0';
 524       retval = SHELL_FindExecutable( lpFile, lpOperation, cmd );
 525
 526       if (retval > 32)  /* Found */
 527       {
 528         if (lpParameters)
 529         {
 530             strcat(cmd," ");
 531             strcat(cmd,lpParameters);
 532         }
 533         SYSLEVEL_ReleaseWin16Lock();
 534         retval = WinExec( cmd, iShowCmd );
 535         SYSLEVEL_RestoreWin16Lock();
 536       }
 537       else if(PathIsURLA((LPSTR)lpFile))    /* File not found, check for URL */
 538       {
 539         char lpstrProtocol[256];
 540         LONG cmdlen = 512;
 541         LPSTR lpstrRes;
 542         INT iSize;
 543
 544         lpstrRes = strchr(lpFile,':');
 545         iSize = lpstrRes - lpFile;
 546
 547         /* Looking for ...protocol\shell\lpOperation\command */
 548         strncpy(lpstrProtocol,lpFile,iSize);
 549         lpstrProtocol[iSize]='\0';
 550         strcat( lpstrProtocol, "\\shell\\" );
 551         strcat( lpstrProtocol, lpOperation );
 552         strcat( lpstrProtocol, "\\command" );
 553
 554         /* Remove File Protocol from lpFile */
 555         /* In the case file://path/file     */
 556         if(!_strnicmp(lpFile,"file",iSize))
 557         {
 558           lpFile += iSize;
 559           while(*lpFile == ':') lpFile++;
 560         }
 561
 562
 563         /* Get the application for the protocol and execute it */
 564         if (RegQueryValue16( HKEY_CLASSES_ROOT, lpstrProtocol, cmd,
 565                              &cmdlen ) == ERROR_SUCCESS )
 566         {
 567             LPSTR tok;
 568             LPSTR tmp;
 569             char param[256] = "";
 570             LONG paramlen = 256;
 571
 572             /* Get the parameters needed by the application
 573                from the associated ddeexec key */
 574             tmp = strstr(lpstrProtocol,"command");
 575             tmp[0] = '\0';
 576             strcat(lpstrProtocol,"ddeexec");
 577
 578             if(RegQueryValue16( HKEY_CLASSES_ROOT, lpstrProtocol, param,&paramlen ) == ERROR_SUCCESS)
 579             {
 580               strcat(cmd," ");
 581               strcat(cmd,param);
 582               cmdlen += paramlen;
 583             }
 584
 585             /* Is there a replace() function anywhere? */
 586             cmd[cmdlen]='\0';
 587
 588             tok=strstr( cmd, "%1" );
 589             if (tok != NULL)
 590             {
 591                 tok[0]='\0'; /* truncate string at the percent */
 592                 strcat( cmd, lpFile ); /* what if no dir in xlpFile? */
 593                 tok=strstr( cmd, "%1" );
 594                 if ((tok!=NULL) && (strlen(tok)>2))
 595                 {
 596                     strcat( cmd, &tok[2] );
 597                 }
 598             }
 599
 600             SYSLEVEL_ReleaseWin16Lock();
 601             retval = WinExec( cmd, iShowCmd );
 602             SYSLEVEL_RestoreWin16Lock();
 603         }
 604       }
 605     /* Check if file specified is in the form www.??????.*** */
 606       else if(!_strnicmp(lpFile,"www",3))
 607       {
 608         /* if so, append lpFile http:// and call ShellExecute */
 609         char lpstrTmpFile[256] = "http://" ;
 610         strcat(lpstrTmpFile,lpFile);
 611         retval = ShellExecuteA(hWnd,lpOperation,lpstrTmpFile,NULL,NULL,0);
 612       }
 613     }
 614     if (lpDirectory)
 615       SetCurrentDirectoryA( old_dir );
 616     return retval;
 617 }
 618
 619 /*************************************************************************
 620  *             FindExecutable16   (SHELL.21)
 621  */
 622 HINSTANCE16 WINAPI FindExecutable16( LPCSTR lpFile, LPCSTR lpDirectory,
 623                                      LPSTR lpResult )
 624 { return (HINSTANCE16)FindExecutableA( lpFile, lpDirectory, lpResult );
 625 }
 626
 627
 628 /*************************************************************************
 629  *             AboutDlgProc16   (SHELL.33)
 630  */
 631 BOOL16 WINAPI AboutDlgProc16( HWND16 hWnd, UINT16 msg, WPARAM16 wParam,
 632                                LPARAM lParam )
 633 { return AboutDlgProc( hWnd, msg, wParam, lParam );
 634 }
 635
 636
 637 /*************************************************************************
 638  *             ShellAbout16   (SHELL.22)
 639  */
 640 BOOL16 WINAPI ShellAbout16( HWND16 hWnd, LPCSTR szApp, LPCSTR szOtherStuff,
 641                             HICON16 hIcon )
 642 { return ShellAboutA( hWnd, szApp, szOtherStuff, hIcon );
 643 }
 644
 645 /*************************************************************************
 646  *                              SHELL_GetResourceTable
 647  */
 648 static DWORD SHELL_GetResourceTable(HFILE hFile,LPBYTE *retptr)
 649 {       IMAGE_DOS_HEADER        mz_header;
 650         char                    magic[4];
 651         int                     size;
 652
 653         TRACE("\n");
 654
 655         *retptr = NULL;
 656         _llseek( hFile, 0, SEEK_SET );
 657         if ((_lread(hFile,&mz_header,sizeof(mz_header)) != sizeof(mz_header)) || (mz_header.e_magic != IMAGE_DOS_SIGNATURE))
 658         { /* .ICO file ? */
 659           if (mz_header.e_cblp == 1)
 660           { /* ICONHEADER.idType, must be 1 */
 661             *retptr = (LPBYTE)-1;
 662             return 1;
 663           }
 664           else
 665             return 0; /* failed */
 666         }
 667         _llseek( hFile, mz_header.e_lfanew, SEEK_SET );
 668
 669         if (_lread( hFile, magic, sizeof(magic) ) != sizeof(magic))
 670           return 0;
 671
 672         _llseek( hFile, mz_header.e_lfanew, SEEK_SET);
 673
 674         if (*(DWORD*)magic  == IMAGE_NT_SIGNATURE)
 675           return IMAGE_NT_SIGNATURE;
 676
 677         if (*(WORD*)magic == IMAGE_OS2_SIGNATURE)
 678         { IMAGE_OS2_HEADER      ne_header;
 679           LPBYTE                pTypeInfo = (LPBYTE)-1;
 680
 681           if (_lread(hFile,&ne_header,sizeof(ne_header))!=sizeof(ne_header))
 682             return 0;
 683
 684           if (ne_header.ne_magic != IMAGE_OS2_SIGNATURE)
 685             return 0;
 686
 687           size = ne_header.rname_tab_offset - ne_header.resource_tab_offset;
 688
 689           if( size > sizeof(NE_TYPEINFO) )
 690           { pTypeInfo = (BYTE*)HeapAlloc( GetProcessHeap(), 0, size);
 691             if( pTypeInfo )
 692             { _llseek(hFile, mz_header.e_lfanew+ne_header.resource_tab_offset, SEEK_SET);
 693               if( _lread( hFile, (char*)pTypeInfo, size) != size )
 694               { HeapFree( GetProcessHeap(), 0, pTypeInfo);
 695                 pTypeInfo = NULL;
 696               }
 697             }
 698           }
 699           *retptr = pTypeInfo;
 700           return IMAGE_OS2_SIGNATURE;
 701         }
 702         return 0; /* failed */
 703 }
 704
 705 /*************************************************************************
 706  *                      SHELL_LoadResource
 707  */
 708 static HGLOBAL16 SHELL_LoadResource(HINSTANCE16 hInst, HFILE hFile, NE_NAMEINFO* pNInfo, WORD sizeShift)
 709 {       BYTE*  ptr;
 710         HGLOBAL16 handle = DirectResAlloc16( hInst, 0x10, (DWORD)pNInfo->length << sizeShift);
 711
 712         TRACE("\n");
 713
 714         if( (ptr = (BYTE*)GlobalLock16( handle )) )
 715         { _llseek( hFile, (DWORD)pNInfo->offset << sizeShift, SEEK_SET);
 716           _lread( hFile, (char*)ptr, pNInfo->length << sizeShift);
 717           return handle;
 718         }
 719         return 0;
 720 }
 721
 722 /*************************************************************************
 723  *                      ICO_LoadIcon
 724  */
 725 static HGLOBAL16 ICO_LoadIcon(HINSTANCE16 hInst, HFILE hFile, LPicoICONDIRENTRY lpiIDE)
 726 {       BYTE*  ptr;
 727         HGLOBAL16 handle = DirectResAlloc16( hInst, 0x10, lpiIDE->dwBytesInRes);
 728         TRACE("\n");
 729         if( (ptr = (BYTE*)GlobalLock16( handle )) )
 730         { _llseek( hFile, lpiIDE->dwImageOffset, SEEK_SET);
 731           _lread( hFile, (char*)ptr, lpiIDE->dwBytesInRes);
 732           return handle;
 733         }
 734         return 0;
 735 }
 736
 737 /*************************************************************************
 738  *                      ICO_GetIconDirectory
 739  *
 740  *  Read .ico file and build phony ICONDIR struct for GetIconID
 741  */
 742 static HGLOBAL16 ICO_GetIconDirectory(HINSTANCE16 hInst, HFILE hFile, LPicoICONDIR* lplpiID )
 743 { WORD    id[3];  /* idReserved, idType, idCount */
 744   LPicoICONDIR  lpiID;
 745   int           i;
 746
 747   TRACE("\n");
 748   _llseek( hFile, 0, SEEK_SET );
 749   if( _lread(hFile,(char*)id,sizeof(id)) != sizeof(id) ) return 0;
 750
 751   /* check .ICO header
 752    *
 753    * - see http://www.microsoft.com/win32dev/ui/icons.htm
 754    */
 755
 756   if( id[0] || id[1] != 1 || !id[2] ) return 0;
 757
 758   i = id[2]*sizeof(icoICONDIRENTRY) ;
 759
 760   lpiID = (LPicoICONDIR)HeapAlloc( GetProcessHeap(), 0, i + sizeof(id));
 761
 762   if( _lread(hFile,(char*)lpiID->idEntries,i) == i )
 763   { HGLOBAL16 handle = DirectResAlloc16( hInst, 0x10,
 764                                      id[2]*sizeof(CURSORICONDIRENTRY) + sizeof(id) );
 765      if( handle )
 766     { CURSORICONDIR*     lpID = (CURSORICONDIR*)GlobalLock16( handle );
 767        lpID->idReserved = lpiID->idReserved = id[0];
 768        lpID->idType = lpiID->idType = id[1];
 769        lpID->idCount = lpiID->idCount = id[2];
 770        for( i=0; i < lpiID->idCount; i++ )
 771       { memcpy((void*)(lpID->idEntries + i),
 772                    (void*)(lpiID->idEntries + i), sizeof(CURSORICONDIRENTRY) - 2);
 773             lpID->idEntries[i].wResId = i;
 774          }
 775       *lplpiID = lpiID;
 776        return handle;
 777      }
 778   }
 779   /* fail */
 780
 781   HeapFree( GetProcessHeap(), 0, lpiID);
 782   return 0;
 783 }
 784
 785 /*************************************************************************
 786  *                      InternalExtractIcon             [SHELL.39]
 787  *
 788  * This abortion is called directly by Progman
 789  */
 790 HGLOBAL16 WINAPI InternalExtractIcon16(HINSTANCE16 hInstance,
 791                                      LPCSTR lpszExeFileName, UINT16 nIconIndex, WORD n )
 792 {       HGLOBAL16       hRet = 0;
 793         HGLOBAL16*      RetPtr = NULL;
 794         LPBYTE          pData;
 795         OFSTRUCT        ofs;
 796         DWORD           sig;
 797         HFILE           hFile = OpenFile( lpszExeFileName, &ofs, OF_READ );
 798         UINT16          iconDirCount = 0,iconCount = 0;
 799         LPBYTE          peimage;
 800         HANDLE  fmapping;
 801
 802         TRACE("(%04x,file %s,start %d,extract %d\n",
 803                        hInstance, lpszExeFileName, nIconIndex, n);
 804
 805         if( hFile == HFILE_ERROR || !n )
 806           return 0;
 807
 808         hRet = GlobalAlloc16( GMEM_FIXED | GMEM_ZEROINIT, sizeof(HICON16)*n);
 809         RetPtr = (HICON16*)GlobalLock16(hRet);
 810
 811         *RetPtr = (n == 0xFFFF)? 0: 1;  /* error return values */
 812
 813         sig = SHELL_GetResourceTable(hFile,&pData);
 814
 815         if( sig==IMAGE_OS2_SIGNATURE || sig==1 ) /* .ICO file */
 816         { HICON16        hIcon = 0;
 817           NE_TYPEINFO* pTInfo = (NE_TYPEINFO*)(pData + 2);
 818           NE_NAMEINFO* pIconStorage = NULL;
 819           NE_NAMEINFO* pIconDir = NULL;
 820           LPicoICONDIR lpiID = NULL;
 821
 822           if( pData == (BYTE*)-1 )
 823           { hIcon = ICO_GetIconDirectory(hInstance, hFile, &lpiID);     /* check for .ICO file */
 824             if( hIcon )
 825             { iconDirCount = 1; iconCount = lpiID->idCount;
 826             }
 827           }
 828           else while( pTInfo->type_id && !(pIconStorage && pIconDir) )
 829           { if( pTInfo->type_id == NE_RSCTYPE_GROUP_ICON )      /* find icon directory and icon repository */
 830             { iconDirCount = pTInfo->count;
 831               pIconDir = ((NE_NAMEINFO*)(pTInfo + 1));
 832               TRACE("\tfound directory - %i icon families\n", iconDirCount);
 833             }
 834             if( pTInfo->type_id == NE_RSCTYPE_ICON )
 835             { iconCount = pTInfo->count;
 836               pIconStorage = ((NE_NAMEINFO*)(pTInfo + 1));
 837               TRACE("\ttotal icons - %i\n", iconCount);
 838             }
 839             pTInfo = (NE_TYPEINFO *)((char*)(pTInfo+1)+pTInfo->count*sizeof(NE_NAMEINFO));
 840           }
 841
 842           /* load resources and create icons */
 843
 844           if( (pIconStorage && pIconDir) || lpiID )
 845           { if( nIconIndex == (UINT16)-1 )
 846             { RetPtr[0] = iconDirCount;
 847             }
 848             else if( nIconIndex < iconDirCount )
 849             { UINT16   i, icon;
 850               if( n > iconDirCount - nIconIndex )
 851                 n = iconDirCount - nIconIndex;
 852
 853               for( i = nIconIndex; i < nIconIndex + n; i++ )
 854               { /* .ICO files have only one icon directory */
 855
 856                 if( lpiID == NULL )
 857                   hIcon = SHELL_LoadResource( hInstance, hFile, pIconDir + i, *(WORD*)pData );
 858                 RetPtr[i-nIconIndex] = GetIconID16( hIcon, 3 );
 859                 GlobalFree16(hIcon);
 860               }
 861
 862               for( icon = nIconIndex; icon < nIconIndex + n; icon++ )
 863               { hIcon = 0;
 864                 if( lpiID )
 865                 { hIcon = ICO_LoadIcon( hInstance, hFile, lpiID->idEntries + RetPtr[icon-nIconIndex]);
 866                 }
 867                 else
 868                 { for( i = 0; i < iconCount; i++ )
 869                   { if( pIconStorage[i].id == (RetPtr[icon-nIconIndex] | 0x8000) )
 870                     { hIcon = SHELL_LoadResource( hInstance, hFile, pIconStorage + i,*(WORD*)pData );
 871                     }
 872                   }
 873                 }
 874                 if( hIcon )
 875                 { RetPtr[icon-nIconIndex] = LoadIconHandler16( hIcon, TRUE );
 876                   FarSetOwner16( RetPtr[icon-nIconIndex], GetExePtr(hInstance) );
 877                 }
 878                 else
 879                 { RetPtr[icon-nIconIndex] = 0;
 880                 }
 881               }
 882             }
 883           }
 884           if( lpiID )
 885             HeapFree( GetProcessHeap(), 0, lpiID);
 886           else
 887             HeapFree( GetProcessHeap(), 0, pData);
 888         }
 889
 890         if( sig == IMAGE_NT_SIGNATURE)
 891         { LPBYTE                idata,igdata;
 892           PIMAGE_DOS_HEADER     dheader;
 893           PIMAGE_NT_HEADERS     pe_header;
 894           PIMAGE_SECTION_HEADER pe_sections;
 895           PIMAGE_RESOURCE_DIRECTORY     rootresdir,iconresdir,icongroupresdir;
 896           PIMAGE_RESOURCE_DATA_ENTRY    idataent,igdataent;
 897           int                   i,j;
 898           PIMAGE_RESOURCE_DIRECTORY_ENTRY       xresent;
 899           CURSORICONDIR         **cids;
 900
 901           fmapping = CreateFileMappingA(hFile,NULL,PAGE_READONLY|SEC_COMMIT,0,0,NULL);
 902           if (fmapping == 0)
 903           { /* FIXME, INVALID_HANDLE_VALUE? */
 904             WARN("failed to create filemap.\n");
 905             hRet = 0;
 906             goto end_2; /* failure */
 907           }
 908           peimage = MapViewOfFile(fmapping,FILE_MAP_READ,0,0,0);
 909           if (!peimage)
 910           { WARN("failed to mmap filemap.\n");
 911             hRet = 0;
 912             goto end_2; /* failure */
 913           }
 914           dheader = (PIMAGE_DOS_HEADER)peimage;
 915
 916           /* it is a pe header, SHELL_GetResourceTable checked that */
 917           pe_header = (PIMAGE_NT_HEADERS)(peimage+dheader->e_lfanew);
 918
 919           /* probably makes problems with short PE headers... but I haven't seen
 920           * one yet...
 921           */
 922           pe_sections = (PIMAGE_SECTION_HEADER)(((char*)pe_header)+sizeof(*pe_header));
 923           rootresdir = NULL;
 924
 925           for (i=0;i<pe_header->FileHeader.NumberOfSections;i++)
 926           { if (pe_sections[i].Characteristics & IMAGE_SCN_CNT_UNINITIALIZED_DATA)
 927               continue;
 928             /* FIXME: doesn't work when the resources are not in a seperate section */
 929             if (pe_sections[i].VirtualAddress == pe_header->OptionalHeader.DataDirectory[IMAGE_DIRECTORY_ENTRY_RESOURCE].VirtualAddress)
 930             { rootresdir = (PIMAGE_RESOURCE_DIRECTORY)((char*)peimage+pe_sections[i].PointerToRawData);
 931               break;
 932             }
 933           }
 934
 935           if (!rootresdir)
 936           { WARN("haven't found section for resource directory.\n");
 937             goto end_4; /* failure */
 938           }
 939
 940           icongroupresdir = GetResDirEntryW(rootresdir,RT_GROUP_ICONW, (DWORD)rootresdir,FALSE);
 941
 942           if (!icongroupresdir)
 943           { WARN("No Icongroupresourcedirectory!\n");
 944             goto end_4; /* failure */
 945           }
 946
 947           iconDirCount = icongroupresdir->NumberOfNamedEntries+icongroupresdir->NumberOfIdEntries;
 948
 949           if( nIconIndex == (UINT16)-1 )
 950           { RetPtr[0] = iconDirCount;
 951             goto end_3; /* success */
 952           }
 953
 954           if (nIconIndex >= iconDirCount)
 955           { WARN("nIconIndex %d is larger than iconDirCount %d\n",nIconIndex,iconDirCount);
 956             GlobalFree16(hRet);
 957             goto end_4; /* failure */
 958           }
 959
 960           cids = (CURSORICONDIR**)HeapAlloc(GetProcessHeap(),0,n*sizeof(CURSORICONDIR*));
 961
 962           /* caller just wanted the number of entries */
 963           xresent = (PIMAGE_RESOURCE_DIRECTORY_ENTRY)(icongroupresdir+1);
 964
 965           /* assure we don't get too much ... */
 966           if( n > iconDirCount - nIconIndex )
 967           { n = iconDirCount - nIconIndex;
 968           }
 969
 970           /* starting from specified index ... */
 971           xresent = xresent+nIconIndex;
 972
 973           for (i=0;i<n;i++,xresent++)
 974           { CURSORICONDIR       *cid;
 975             PIMAGE_RESOURCE_DIRECTORY   resdir;
 976
 977             /* go down this resource entry, name */
 978             resdir = (PIMAGE_RESOURCE_DIRECTORY)((DWORD)rootresdir+(xresent->u2.s.OffsetToDirectory));
 979
 980             /* default language (0) */
 981             resdir = GetResDirEntryW(resdir,(LPWSTR)0,(DWORD)rootresdir,TRUE);
 982             igdataent = (PIMAGE_RESOURCE_DATA_ENTRY)resdir;
 983
 984             /* lookup address in mapped image for virtual address */
 985             igdata = NULL;
 986
 987             for (j=0;j<pe_header->FileHeader.NumberOfSections;j++)
 988             { if (igdataent->OffsetToData < pe_sections[j].VirtualAddress)
 989                 continue;
 990               if (igdataent->OffsetToData+igdataent->Size > pe_sections[j].VirtualAddress+pe_sections[j].SizeOfRawData)
 991                 continue;
 992               igdata = peimage+(igdataent->OffsetToData-pe_sections[j].VirtualAddress+pe_sections[j].PointerToRawData);
 993             }
 994
 995             if (!igdata)
 996             { WARN("no matching real address for icongroup!\n");
 997               goto end_4;       /* failure */
 998             }
 999             /* found */
1000             cid = (CURSORICONDIR*)igdata;
1001             cids[i] = cid;
1002             RetPtr[i] = LookupIconIdFromDirectoryEx(igdata,TRUE,GetSystemMetrics(SM_CXICON),GetSystemMetrics(SM_CYICON),0);
1003           }
1004
1005           iconresdir=GetResDirEntryW(rootresdir,RT_ICONW,(DWORD)rootresdir,FALSE);
1006
1007           if (!iconresdir)
1008           { WARN("No Iconresourcedirectory!\n");
1009             goto end_4; /* failure */
1010           }
1011
1012           for (i=0;i<n;i++)
1013           { PIMAGE_RESOURCE_DIRECTORY   xresdir;
1014             xresdir = GetResDirEntryW(iconresdir,(LPWSTR)(DWORD)RetPtr[i],(DWORD)rootresdir,FALSE);
1015             xresdir = GetResDirEntryW(xresdir,(LPWSTR)0,(DWORD)rootresdir,TRUE);
1016             idataent = (PIMAGE_RESOURCE_DATA_ENTRY)xresdir;
1017             idata = NULL;
1018
1019             /* map virtual to address in image */
1020             for (j=0;j<pe_header->FileHeader.NumberOfSections;j++)
1021             { if (idataent->OffsetToData < pe_sections[j].VirtualAddress)
1022                 continue;
1023               if (idataent->OffsetToData+idataent->Size > pe_sections[j].VirtualAddress+pe_sections[j].SizeOfRawData)
1024                 continue;
1025               idata = peimage+(idataent->OffsetToData-pe_sections[j].VirtualAddress+pe_sections[j].PointerToRawData);
1026             }
1027             if (!idata)
1028             { WARN("no matching real address found for icondata!\n");
1029               RetPtr[i]=0;
1030               continue;
1031             }
1032             RetPtr[i] = CreateIconFromResourceEx(idata,idataent->Size,TRUE,0x00030000,GetSystemMetrics(SM_CXICON),GetSystemMetrics(SM_CYICON),0);
1033           }
1034           goto end_3;   /* sucess */
1035         }
1036         goto end_1;     /* return array with icon handles */
1037
1038 /* cleaning up (try & catch would be nicer) */
1039 end_4:  hRet = 0;       /* failure */
1040 end_3:  UnmapViewOfFile(peimage);       /* success */
1041 end_2:  CloseHandle(fmapping);
1042 end_1:  _lclose( hFile);
1043         return hRet;
1044 }
1045
1046 /*************************************************************************
1047  *             ExtractIcon16   (SHELL.34)
1048  */
1049 HICON16 WINAPI ExtractIcon16( HINSTANCE16 hInstance, LPCSTR lpszExeFileName,
1050         UINT16 nIconIndex )
1051 {   TRACE("\n");
1052     return ExtractIconA( hInstance, lpszExeFileName, nIconIndex );
1053 }
1054
1055 /*************************************************************************
1056  *             ExtractIconEx16   (SHELL.40)
1057  */
1058 HICON16 WINAPI ExtractIconEx16(
1059         LPCSTR lpszFile, INT16 nIconIndex, HICON16 *phiconLarge,
1060         HICON16 *phiconSmall, UINT16 nIcons
1061 ) {
1062     HICON       *ilarge,*ismall;
1063     UINT16      ret;
1064     int         i;
1065
1066     if (phiconLarge)
1067         ilarge = (HICON*)HeapAlloc(GetProcessHeap(),0,nIcons*sizeof(HICON));
1068     else
1069         ilarge = NULL;
1070     if (phiconSmall)
1071         ismall = (HICON*)HeapAlloc(GetProcessHeap(),0,nIcons*sizeof(HICON));
1072     else
1073         ismall = NULL;
1074     ret = ExtractIconExA(lpszFile,nIconIndex,ilarge,ismall,nIcons);
1075     if (ilarge) {
1076         for (i=0;i<nIcons;i++)
1077             phiconLarge[i]=ilarge[i];
1078         HeapFree(GetProcessHeap(),0,ilarge);
1079     }
1080     if (ismall) {
1081         for (i=0;i<nIcons;i++)
1082             phiconSmall[i]=ismall[i];
1083         HeapFree(GetProcessHeap(),0,ismall);
1084     }
1085     return ret;
1086 }
1087
1088 /*************************************************************************
1089  *                              ExtractAssociatedIconA  [SHELL.36]
1090  *
1091  * Return icon for given file (either from file itself or from associated
1092  * executable) and patch parameters if needed.
1093  */
1094 HICON WINAPI ExtractAssociatedIconA(HINSTANCE hInst, LPSTR lpIconPath, LPWORD lpiIcon)
1095 {       TRACE("\n");
1096         return ExtractAssociatedIcon16(hInst,lpIconPath,lpiIcon);
1097 }
1098
1099 HICON16 WINAPI ExtractAssociatedIcon16(HINSTANCE16 hInst, LPSTR lpIconPath, LPWORD lpiIcon)
1100 {       HICON16 hIcon;
1101
1102         TRACE("\n");
1103
1104         hIcon = ExtractIcon16(hInst, lpIconPath, *lpiIcon);
1105
1106         if( hIcon < 2 )
1107         { if( hIcon == 1 ) /* no icons found in given file */
1108           { char  tempPath[0x80];
1109             UINT16  uRet = FindExecutable16(lpIconPath,NULL,tempPath);
1110
1111             if( uRet > 32 && tempPath[0] )
1112             { strcpy(lpIconPath,tempPath);
1113               hIcon = ExtractIcon16(hInst, lpIconPath, *lpiIcon);
1114               if( hIcon > 2 )
1115                 return hIcon;
1116             }
1117             else hIcon = 0;
1118           }
1119
1120           if( hIcon == 1 )
1121             *lpiIcon = 2;   /* MSDOS icon - we found .exe but no icons in it */
1122           else
1123             *lpiIcon = 6;   /* generic icon - found nothing */
1124
1125           GetModuleFileName16(hInst, lpIconPath, 0x80);
1126           hIcon = LoadIcon16( hInst, MAKEINTRESOURCE16(*lpiIcon));
1127         }
1128         return hIcon;
1129 }
1130
1131 /*************************************************************************
1132  *                              FindEnvironmentString   [SHELL.38]
1133  *
1134  * Returns a pointer into the DOS environment... Ugh.
1135  */
1136 LPSTR SHELL_FindString(LPSTR lpEnv, LPCSTR entry)
1137 { UINT16 l;
1138
1139   TRACE("\n");
1140
1141   l = strlen(entry);
1142   for( ; *lpEnv ; lpEnv+=strlen(lpEnv)+1 )
1143   { if( lstrncmpiA(lpEnv, entry, l) )
1144       continue;
1145         if( !*(lpEnv+l) )
1146             return (lpEnv + l);                 /* empty entry */
1147         else if ( *(lpEnv+l)== '=' )
1148             return (lpEnv + l + 1);
1149     }
1150     return NULL;
1151 }
1152
1153 SEGPTR WINAPI FindEnvironmentString16(LPSTR str)
1154 { SEGPTR  spEnv;
1155   LPSTR lpEnv,lpString;
1156   TRACE("\n");
1157
1158   spEnv = GetDOSEnvironment16();
1159
1160   lpEnv = (LPSTR)PTR_SEG_TO_LIN(spEnv);
1161   lpString = (spEnv)?SHELL_FindString(lpEnv, str):NULL;
1162
1163     if( lpString )              /*  offset should be small enough */
1164         return spEnv + (lpString - lpEnv);
1165     return (SEGPTR)NULL;
1166 }
1167
1168 /*************************************************************************
1169  *                              DoEnvironmentSubst      [SHELL.37]
1170  *
1171  * Replace %KEYWORD% in the str with the value of variable KEYWORD
1172  * from "DOS" environment.
1173  */
1174 DWORD WINAPI DoEnvironmentSubst16(LPSTR str,WORD length)
1175 {
1176   LPSTR   lpEnv = (LPSTR)PTR_SEG_TO_LIN(GetDOSEnvironment16());
1177   LPSTR   lpBuffer = (LPSTR)HeapAlloc( GetProcessHeap(), 0, length);
1178   LPSTR   lpstr = str;
1179   LPSTR   lpbstr = lpBuffer;
1180
1181   CharToOemA(str,str);
1182
1183   TRACE("accept %s\n", str);
1184
1185   while( *lpstr && lpbstr - lpBuffer < length )
1186    {
1187      LPSTR lpend = lpstr;
1188
1189      if( *lpstr == '%' )
1190        {
1191           do { lpend++; } while( *lpend && *lpend != '%' );
1192           if( *lpend == '%' && lpend - lpstr > 1 )      /* found key */
1193             {
1194                LPSTR lpKey;
1195               *lpend = '\0';
1196                lpKey = SHELL_FindString(lpEnv, lpstr+1);
1197                if( lpKey )                              /* found key value */
1198                  {
1199                    int l = strlen(lpKey);
1200
1201                    if( l > length - (lpbstr - lpBuffer) - 1 )
1202                      {
1203            WARN("-- Env subst aborted - string too short\n");
1204                       *lpend = '%';
1205                        break;
1206                      }
1207                    strcpy(lpbstr, lpKey);
1208                    lpbstr += l;
1209                  }
1210                else break;
1211               *lpend = '%';
1212                lpstr = lpend + 1;
1213             }
1214           else break;                                   /* back off and whine */
1215
1216           continue;
1217        }
1218
1219      *lpbstr++ = *lpstr++;
1220    }
1221
1222  *lpbstr = '\0';
1223   if( lpstr - str == strlen(str) )
1224     {
1225       strncpy(str, lpBuffer, length);
1226       length = 1;
1227     }
1228   else
1229       length = 0;
1230
1231   TRACE("-- return %s\n", str);
1232
1233   OemToCharA(str,str);
1234   HeapFree( GetProcessHeap(), 0, lpBuffer);
1235
1236   /*  Return str length in the LOWORD
1237    *  and 1 in HIWORD if subst was successful.
1238    */
1239  return (DWORD)MAKELONG(strlen(str), length);
1240 }
1241
1242 /*************************************************************************
1243  *                              ShellHookProc           [SHELL.103]
1244  * System-wide WH_SHELL hook.
1245  */
1246 LRESULT WINAPI ShellHookProc16(INT16 code, WPARAM16 wParam, LPARAM lParam)
1247 {
1248     TRACE("%i, %04x, %08x\n", code, wParam,
1249                                                       (unsigned)lParam );
1250     if( SHELL_hHook && SHELL_hWnd )
1251     {
1252         UINT16  uMsg = 0;
1253         switch( code )
1254         {
1255             case HSHELL_WINDOWCREATED:          uMsg = uMsgWndCreated;   break;
1256             case HSHELL_WINDOWDESTROYED:        uMsg = uMsgWndDestroyed; break;
1257             case HSHELL_ACTIVATESHELLWINDOW:    uMsg = uMsgShellActivate;
1258         }
1259         PostMessage16( SHELL_hWnd, uMsg, wParam, 0 );
1260     }
1261     return CallNextHookEx16( WH_SHELL, code, wParam, lParam );
1262 }
1263
1264 /*************************************************************************
1265  *                              RegisterShellHook       [SHELL.102]
1266  */
1267 BOOL WINAPI RegisterShellHook16(HWND16 hWnd, UINT16 uAction)
1268 {
1269     TRACE("%04x [%u]\n", hWnd, uAction );
1270
1271     switch( uAction )
1272     {
1273     case 2:  /* register hWnd as a shell window */
1274         if( !SHELL_hHook )
1275         {
1276             HMODULE16 hShell = GetModuleHandle16( "SHELL" );
1277             HOOKPROC16 hookProc = (HOOKPROC16)NE_GetEntryPoint( hShell, 103 );
1278             SHELL_hHook = SetWindowsHookEx16( WH_SHELL, hookProc, hShell, 0 );
1279             if ( SHELL_hHook )
1280             {
1281                 uMsgWndCreated = RegisterWindowMessageA( lpstrMsgWndCreated );
1282                 uMsgWndDestroyed = RegisterWindowMessageA( lpstrMsgWndDestroyed );
1283                 uMsgShellActivate = RegisterWindowMessageA( lpstrMsgShellActivate );
1284             }
1285             else
1286                 WARN("-- unable to install ShellHookProc()!\n");
1287         }
1288
1289         if ( SHELL_hHook )
1290             return ((SHELL_hWnd = hWnd) != 0);
1291         break;
1292
1293     default:
1294         WARN("-- unknown code %i\n", uAction );
1295         SHELL_hWnd = 0; /* just in case */
1296     }
1297     return FALSE;
1298 }