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

   1 /*
   2  *                              Shell Library Functions
   3  *
   4  *  1998 Marcus Meissner
   5  */
   6
   7 #include "config.h"
   8
   9 #include <stdlib.h>
  10 #include <string.h>
  11 #include <unistd.h>
  12 #include <ctype.h>
  13
  14 #include "dlgs.h"
  15 #include "shellapi.h"
  16 #include "shlobj.h"
  17 #include "shlwapi.h"
  18 #include "windef.h"
  19 #include "winerror.h"
  20 #include "winreg.h"
  21
  22 #include "wine/winbase16.h"
  23 #include "wine/winuser16.h"
  24 #include "shell32_main.h"
  25
  26 #include "debugtools.h"
  27
  28 DEFAULT_DEBUG_CHANNEL(shell);
  29 DECLARE_DEBUG_CHANNEL(exec);
  30
  31
  32 typedef struct {     /* structure for dropped files */
  33  WORD     wSize;
  34  POINT16  ptMousePos;
  35  BOOL16   fInNonClientArea;
  36  /* memory block with filenames follows */
  37 } DROPFILESTRUCT16, *LPDROPFILESTRUCT16;
  38
  39 static const char*      lpstrMsgWndCreated = "OTHERWINDOWCREATED";
  40 static const char*      lpstrMsgWndDestroyed = "OTHERWINDOWDESTROYED";
  41 static const char*      lpstrMsgShellActivate = "ACTIVATESHELLWINDOW";
  42
  43 static HWND16   SHELL_hWnd = 0;
  44 static HHOOK    SHELL_hHook = 0;
  45 static UINT16   uMsgWndCreated = 0;
  46 static UINT16   uMsgWndDestroyed = 0;
  47 static UINT16   uMsgShellActivate = 0;
  48 HINSTANCE16     SHELL_hInstance = 0;
  49 HINSTANCE SHELL_hInstance32;
  50 static int SHELL_Attach = 0;
  51
  52 /***********************************************************************
  53  * DllEntryPoint [SHELL.101]
  54  *
  55  * Initialization code for shell.dll. Automatically loads the
  56  * 32-bit shell32.dll to allow thunking up to 32-bit code.
  57  *
  58  * RETURNS:
  59  */
  60 BOOL WINAPI SHELL_DllEntryPoint(DWORD Reason, HINSTANCE16 hInst,
  61                                 WORD ds, WORD HeapSize, DWORD res1, WORD res2)
  62 {
  63     TRACE("(%08lx, %04x, %04x, %04x, %08lx, %04x)\n",
  64           Reason, hInst, ds, HeapSize, res1, res2);
  65
  66     switch(Reason)
  67     {
  68     case DLL_PROCESS_ATTACH:
  69         if (SHELL_Attach++) break;
  70         SHELL_hInstance = hInst;
  71         if(!SHELL_hInstance32)
  72         {
  73             if(!(SHELL_hInstance32 = LoadLibraryA("shell32.dll")))
  74             {
  75                 ERR("Could not load sibling shell32.dll\n");
  76                 return FALSE;
  77             }
  78         }
  79         break;
  80
  81     case DLL_PROCESS_DETACH:
  82         if(!--SHELL_Attach)
  83         {
  84             SHELL_hInstance = 0;
  85             if(SHELL_hInstance32)
  86                 FreeLibrary(SHELL_hInstance32);
  87         }
  88         break;
  89     }
  90     return TRUE;
  91 }
  92
  93 /*************************************************************************
  94  *                              DragAcceptFiles         [SHELL.9]
  95  */
  96 void WINAPI DragAcceptFiles16(HWND16 hWnd, BOOL16 b)
  97 {
  98   DragAcceptFiles(hWnd, b);
  99 }
 100
 101 /*************************************************************************
 102  *                              DragQueryFile           [SHELL.11]
 103  */
 104 UINT16 WINAPI DragQueryFile16(
 105         HDROP16 hDrop,
 106         WORD wFile,
 107         LPSTR lpszFile,
 108         WORD wLength)
 109 {
 110         LPSTR lpDrop;
 111         UINT i = 0;
 112         LPDROPFILESTRUCT16 lpDropFileStruct = (LPDROPFILESTRUCT16) GlobalLock16(hDrop);
 113
 114         TRACE("(%04x, %x, %p, %u)\n", hDrop,wFile,lpszFile,wLength);
 115
 116         if(!lpDropFileStruct) goto end;
 117
 118         lpDrop = (LPSTR) lpDropFileStruct + lpDropFileStruct->wSize;
 119         wFile = (wFile==0xffff) ? 0xffffffff : wFile;
 120
 121         while (i++ < wFile)
 122         {
 123           while (*lpDrop++); /* skip filename */
 124           if (!*lpDrop)
 125           {
 126             i = (wFile == 0xFFFFFFFF) ? i : 0;
 127             goto end;
 128           }
 129         }
 130
 131         i = strlen(lpDrop);
 132         i++;
 133         if (!lpszFile ) goto end;   /* needed buffer size */
 134         i = (wLength > i) ? i : wLength;
 135         lstrcpynA (lpszFile,  lpDrop,  i);
 136 end:
 137         GlobalUnlock16(hDrop);
 138         return i;
 139 }
 140
 141 /*************************************************************************
 142  *                              DragFinish              [SHELL.12]
 143  */
 144 void WINAPI DragFinish16(HDROP16 h)
 145 {
 146     TRACE("\n");
 147     GlobalFree16((HGLOBAL16)h);
 148 }
 149
 150
 151 /*************************************************************************
 152  *                              DragQueryPoint          [SHELL.13]
 153  */
 154 BOOL16 WINAPI DragQueryPoint16(HDROP16 hDrop, POINT16 *p)
 155 {
 156   LPDROPFILESTRUCT16 lpDropFileStruct;
 157   BOOL16           bRet;
 158   TRACE("\n");
 159   lpDropFileStruct = (LPDROPFILESTRUCT16) GlobalLock16(hDrop);
 160
 161   memcpy(p,&lpDropFileStruct->ptMousePos,sizeof(POINT16));
 162   bRet = lpDropFileStruct->fInNonClientArea;
 163
 164   GlobalUnlock16(hDrop);
 165   return bRet;
 166 }
 167
 168 /*************************************************************************
 169  *      SHELL_FindExecutable [Internal]
 170  *
 171  * Utility for code sharing between FindExecutable and ShellExecute
 172  */
 173 HINSTANCE SHELL_FindExecutable( LPCSTR lpFile,
 174                                          LPCSTR lpOperation,
 175                                          LPSTR lpResult)
 176 { char *extension = NULL; /* pointer to file extension */
 177     char tmpext[5];         /* local copy to mung as we please */
 178     char filetype[256];     /* registry name for this filetype */
 179     LONG filetypelen=256;   /* length of above */
 180     char command[256];      /* command from registry */
 181     LONG commandlen=256;    /* This is the most DOS can handle :) */
 182     char buffer[256];       /* Used to GetProfileString */
 183     HINSTANCE retval=31;  /* default - 'No association was found' */
 184     char *tok;              /* token pointer */
 185     int i;                  /* random counter */
 186     char xlpFile[256] = ""; /* result of SearchPath */
 187
 188   TRACE("%s\n", (lpFile != NULL?lpFile:"-") );
 189
 190     lpResult[0]='\0'; /* Start off with an empty return string */
 191
 192     /* trap NULL parameters on entry */
 193     if (( lpFile == NULL ) || ( lpResult == NULL ) || ( lpOperation == NULL ))
 194   { WARN_(exec)("(lpFile=%s,lpResult=%s,lpOperation=%s): NULL parameter\n",
 195            lpFile, lpOperation, lpResult);
 196         return 2; /* File not found. Close enough, I guess. */
 197     }
 198
 199     if (SearchPathA( NULL, lpFile,".exe",sizeof(xlpFile),xlpFile,NULL))
 200   { TRACE("SearchPathA returned non-zero\n");
 201         lpFile = xlpFile;
 202     }
 203
 204     /* First thing we need is the file's extension */
 205     extension = strrchr( xlpFile, '.' ); /* Assume last "." is the one; */
 206                                         /* File->Run in progman uses */
 207                                         /* .\FILE.EXE :( */
 208   TRACE("xlpFile=%s,extension=%s\n", xlpFile, extension);
 209
 210     if ((extension == NULL) || (extension == &xlpFile[strlen(xlpFile)]))
 211   { WARN("Returning 31 - No association\n");
 212         return 31; /* no association */
 213     }
 214
 215     /* Make local copy & lowercase it for reg & 'programs=' lookup */
 216     lstrcpynA( tmpext, extension, 5 );
 217     CharLowerA( tmpext );
 218   TRACE("%s file\n", tmpext);
 219
 220     /* Three places to check: */
 221     /* 1. win.ini, [windows], programs (NB no leading '.') */
 222     /* 2. Registry, HKEY_CLASS_ROOT\<filetype>\shell\open\command */
 223     /* 3. win.ini, [extensions], extension (NB no leading '.' */
 224     /* All I know of the order is that registry is checked before */
 225     /* extensions; however, it'd make sense to check the programs */
 226     /* section first, so that's what happens here. */
 227
 228     /* See if it's a program - if GetProfileString fails, we skip this
 229      * section. Actually, if GetProfileString fails, we've probably
 230      * got a lot more to worry about than running a program... */
 231     if ( GetProfileStringA("windows", "programs", "exe pif bat com",
 232                                                   buffer, sizeof(buffer)) > 0 )
 233   { for (i=0;i<strlen(buffer); i++) buffer[i]=tolower(buffer[i]);
 234
 235                 tok = strtok(buffer, " \t"); /* ? */
 236                 while( tok!= NULL)
 237                   {
 238                         if (strcmp(tok, &tmpext[1])==0) /* have to skip the leading "." */
 239                           {
 240                                 strcpy(lpResult, xlpFile);
 241                                 /* Need to perhaps check that the file has a path
 242                                  * attached */
 243         TRACE("found %s\n", lpResult);
 244         return 33;
 245
 246                 /* Greater than 32 to indicate success FIXME According to the
 247                  * docs, I should be returning a handle for the
 248                  * executable. Does this mean I'm supposed to open the
 249                  * executable file or something? More RTFM, I guess... */
 250                           }
 251                         tok=strtok(NULL, " \t");
 252                   }
 253           }
 254
 255     /* Check registry */
 256     if (RegQueryValue16( HKEY_CLASSES_ROOT, tmpext, filetype,
 257                          &filetypelen ) == ERROR_SUCCESS )
 258     {
 259         filetype[filetypelen]='\0';
 260         TRACE("File type: %s\n", filetype);
 261
 262         /* Looking for ...buffer\shell\lpOperation\command */
 263         strcat( filetype, "\\shell\\" );
 264         strcat( filetype, lpOperation );
 265         strcat( filetype, "\\command" );
 266
 267         if (RegQueryValue16( HKEY_CLASSES_ROOT, filetype, command,
 268                              &commandlen ) == ERROR_SUCCESS )
 269         {
 270             LPSTR tmp;
 271             char param[256];
 272             LONG paramlen = 256;
 273
 274
 275             /* Get the parameters needed by the application
 276                from the associated ddeexec key */
 277             tmp = strstr(filetype,"command");
 278             tmp[0] = '\0';
 279             strcat(filetype,"ddeexec");
 280
 281             if(RegQueryValue16( HKEY_CLASSES_ROOT, filetype, param,&paramlen ) == ERROR_SUCCESS)
 282             {
 283               strcat(command," ");
 284               strcat(command,param);
 285               commandlen += paramlen;
 286             }
 287
 288             /* Is there a replace() function anywhere? */
 289             command[commandlen]='\0';
 290             strcpy( lpResult, command );
 291             tok=strstr( lpResult, "%1" );
 292             if (tok != NULL)
 293             {
 294                 tok[0]='\0'; /* truncate string at the percent */
 295                 strcat( lpResult, xlpFile ); /* what if no dir in xlpFile? */
 296                 tok=strstr( command, "%1" );
 297                 if ((tok!=NULL) && (strlen(tok)>2))
 298                 {
 299                     strcat( lpResult, &tok[2] );
 300                 }
 301             }
 302             retval=33; /* FIXME see above */
 303         }
 304     }
 305     else /* Check win.ini */
 306     {
 307         /* Toss the leading dot */
 308         extension++;
 309         if ( GetProfileStringA( "extensions", extension, "", command,
 310                                   sizeof(command)) > 0)
 311           {
 312                 if (strlen(command)!=0)
 313                   {
 314                         strcpy( lpResult, command );
 315                         tok=strstr( lpResult, "^" ); /* should be ^.extension? */
 316                         if (tok != NULL)
 317                           {
 318                                 tok[0]='\0';
 319                                 strcat( lpResult, xlpFile ); /* what if no dir in xlpFile? */
 320                                 tok=strstr( command, "^" ); /* see above */
 321                                 if ((tok != NULL) && (strlen(tok)>5))
 322                                   {
 323                                         strcat( lpResult, &tok[5]);
 324                                   }
 325                           }
 326                         retval=33; /* FIXME - see above */
 327                   }
 328           }
 329         }
 330
 331     TRACE("returning %s\n", lpResult);
 332     return retval;
 333 }
 334
 335 /*************************************************************************
 336  *                              ShellExecute            [SHELL.20]
 337  */
 338 HINSTANCE16 WINAPI ShellExecute16( HWND16 hWnd, LPCSTR lpOperation,
 339                                    LPCSTR lpFile, LPCSTR lpParameters,
 340                                    LPCSTR lpDirectory, INT16 iShowCmd )
 341 {   HINSTANCE16 retval=31;
 342     char old_dir[1024];
 343     char cmd[1024] = "";
 344
 345     TRACE("(%04x,'%s','%s','%s','%s',%x)\n",
 346                 hWnd, lpOperation ? lpOperation:"<null>", lpFile ? lpFile:"<null>",
 347                 lpParameters ? lpParameters : "<null>",
 348                 lpDirectory ? lpDirectory : "<null>", iShowCmd);
 349
 350     if (lpFile==NULL) return 0; /* should not happen */
 351     if (lpOperation==NULL) /* default is open */
 352       lpOperation="open";
 353
 354     if (lpDirectory)
 355     { GetCurrentDirectoryA( sizeof(old_dir), old_dir );
 356         SetCurrentDirectoryA( lpDirectory );
 357     }
 358
 359     /* First try to execute lpFile with lpParameters directly */
 360     strcpy(cmd,lpFile);
 361     strcat(cmd,lpParameters ? lpParameters : "");
 362
 363     retval = WinExec16( cmd, iShowCmd );
 364
 365     /* Unable to execute lpFile directly
 366        Check if we can match an application to lpFile */
 367     if(retval < 32)
 368     {
 369       cmd[0] = '\0';
 370       retval = SHELL_FindExecutable( lpFile, lpOperation, cmd );
 371
 372       if (retval > 32)  /* Found */
 373       {
 374         if (lpParameters)
 375         {
 376             strcat(cmd," ");
 377             strcat(cmd,lpParameters);
 378         }
 379         retval = WinExec16( cmd, iShowCmd );
 380       }
 381       else if(PathIsURLA((LPSTR)lpFile))    /* File not found, check for URL */
 382       {
 383         char lpstrProtocol[256];
 384         LONG cmdlen = 512;
 385         LPSTR lpstrRes;
 386         INT iSize;
 387
 388         lpstrRes = strchr(lpFile,':');
 389         iSize = lpstrRes - lpFile;
 390
 391         /* Looking for ...protocol\shell\lpOperation\command */
 392         strncpy(lpstrProtocol,lpFile,iSize);
 393         lpstrProtocol[iSize]='\0';
 394         strcat( lpstrProtocol, "\\shell\\" );
 395         strcat( lpstrProtocol, lpOperation );
 396         strcat( lpstrProtocol, "\\command" );
 397
 398         /* Remove File Protocol from lpFile */
 399         /* In the case file://path/file     */
 400         if(!strncasecmp(lpFile,"file",iSize))
 401         {
 402           lpFile += iSize;
 403           while(*lpFile == ':') lpFile++;
 404         }
 405
 406
 407         /* Get the application for the protocol and execute it */
 408         if (RegQueryValue16( HKEY_CLASSES_ROOT, lpstrProtocol, cmd,
 409                              &cmdlen ) == ERROR_SUCCESS )
 410         {
 411             LPSTR tok;
 412             LPSTR tmp;
 413             char param[256] = "";
 414             LONG paramlen = 256;
 415
 416             /* Get the parameters needed by the application
 417                from the associated ddeexec key */
 418             tmp = strstr(lpstrProtocol,"command");
 419             tmp[0] = '\0';
 420             strcat(lpstrProtocol,"ddeexec");
 421
 422             if(RegQueryValue16( HKEY_CLASSES_ROOT, lpstrProtocol, param,&paramlen ) == ERROR_SUCCESS)
 423             {
 424               strcat(cmd," ");
 425               strcat(cmd,param);
 426               cmdlen += paramlen;
 427             }
 428
 429             /* Is there a replace() function anywhere? */
 430             cmd[cmdlen]='\0';
 431
 432             tok=strstr( cmd, "%1" );
 433             if (tok != NULL)
 434             {
 435                 tok[0]='\0'; /* truncate string at the percent */
 436                 strcat( cmd, lpFile ); /* what if no dir in xlpFile? */
 437                 tok=strstr( cmd, "%1" );
 438                 if ((tok!=NULL) && (strlen(tok)>2))
 439                 {
 440                     strcat( cmd, &tok[2] );
 441                 }
 442             }
 443
 444             retval = WinExec16( cmd, iShowCmd );
 445         }
 446       }
 447     /* Check if file specified is in the form www.??????.*** */
 448       else if(!strncasecmp(lpFile,"www",3))
 449       {
 450         /* if so, append lpFile http:// and call ShellExecute */
 451         char lpstrTmpFile[256] = "http://" ;
 452         strcat(lpstrTmpFile,lpFile);
 453         retval = ShellExecuteA(hWnd,lpOperation,lpstrTmpFile,NULL,NULL,0);
 454       }
 455     }
 456     if (lpDirectory)
 457       SetCurrentDirectoryA( old_dir );
 458     return retval;
 459 }
 460
 461 /*************************************************************************
 462  *             FindExecutable   (SHELL.21)
 463  */
 464 HINSTANCE16 WINAPI FindExecutable16( LPCSTR lpFile, LPCSTR lpDirectory,
 465                                      LPSTR lpResult )
 466 { return (HINSTANCE16)FindExecutableA( lpFile, lpDirectory, lpResult );
 467 }
 468
 469
 470 /*************************************************************************
 471  *             AboutDlgProc   (SHELL.33)
 472  */
 473 BOOL16 WINAPI AboutDlgProc16( HWND16 hWnd, UINT16 msg, WPARAM16 wParam,
 474                                LPARAM lParam )
 475 { return AboutDlgProc( hWnd, msg, wParam, lParam );
 476 }
 477
 478
 479 /*************************************************************************
 480  *             ShellAbout   (SHELL.22)
 481  */
 482 BOOL16 WINAPI ShellAbout16( HWND16 hWnd, LPCSTR szApp, LPCSTR szOtherStuff,
 483                             HICON16 hIcon )
 484 { return ShellAboutA( hWnd, szApp, szOtherStuff, hIcon );
 485 }
 486
 487 /*************************************************************************
 488  *                      InternalExtractIcon             [SHELL.39]
 489  *
 490  * This abortion is called directly by Progman
 491  */
 492 HGLOBAL16 WINAPI InternalExtractIcon16(HINSTANCE16 hInstance,
 493                                      LPCSTR lpszExeFileName, UINT16 nIconIndex, WORD n )
 494 {
 495     HGLOBAL16 hRet = 0;
 496     HICON16 *RetPtr = NULL;
 497     OFSTRUCT ofs;
 498     HFILE hFile;
 499
 500         TRACE("(%04x,file %s,start %d,extract %d\n",
 501                        hInstance, lpszExeFileName, nIconIndex, n);
 502
 503         if( !n )
 504           return 0;
 505
 506         hFile = OpenFile( lpszExeFileName, &ofs, OF_READ );
 507
 508         hRet = GlobalAlloc16( GMEM_FIXED | GMEM_ZEROINIT, sizeof(HICON16)*n);
 509         RetPtr = (HICON16*)GlobalLock16(hRet);
 510
 511         if (hFile == HFILE_ERROR)
 512         { /* not found - load from builtin module if available */
 513           HINSTANCE hInst = (HINSTANCE)LoadLibrary16(lpszExeFileName);
 514
 515           if (hInst < 32) /* hmm, no Win16 module - try Win32 :-) */
 516             hInst = LoadLibraryA(lpszExeFileName);
 517           if (hInst)
 518           {
 519             int i;
 520             for (i=nIconIndex; i < nIconIndex + n; i++)
 521               RetPtr[i-nIconIndex] =
 522                       (HICON16)LoadIconA(hInst, (LPCSTR)(DWORD)i);
 523             FreeLibrary(hInst);
 524             return hRet;
 525           }
 526           GlobalFree16( hRet );
 527           return 0;
 528         }
 529
 530         if (nIconIndex == (UINT16)-1)  /* get number of icons */
 531         {
 532             RetPtr[0] = PrivateExtractIconsA( ofs.szPathName, -1, 0, 0, NULL, 0, 0, 0 );
 533         }
 534         else
 535         {
 536             HRESULT res;
 537             HICON *icons;
 538             icons = HeapAlloc( GetProcessHeap(), 0, n * sizeof(*icons) );
 539             res = PrivateExtractIconsA( ofs.szPathName, nIconIndex,
 540                                         GetSystemMetrics(SM_CXICON),
 541                                         GetSystemMetrics(SM_CYICON),
 542                                         icons, 0, n, 0 );
 543             if (!res)
 544             {
 545                 int i;
 546                 for (i = 0; i < n; i++) RetPtr[i] = (HICON16)icons[i];
 547             }
 548             else
 549             {
 550                 GlobalFree16( hRet );
 551                 hRet = 0;
 552             }
 553             HeapFree( GetProcessHeap(), 0, icons );
 554         }
 555         return hRet;
 556 }
 557
 558 /*************************************************************************
 559  *             ExtractIcon   (SHELL.34)
 560  */
 561 HICON16 WINAPI ExtractIcon16( HINSTANCE16 hInstance, LPCSTR lpszExeFileName,
 562         UINT16 nIconIndex )
 563 {   TRACE("\n");
 564     return ExtractIconA( hInstance, lpszExeFileName, nIconIndex );
 565 }
 566
 567 /*************************************************************************
 568  *             ExtractIconEx   (SHELL.40)
 569  */
 570 HICON16 WINAPI ExtractIconEx16(
 571         LPCSTR lpszFile, INT16 nIconIndex, HICON16 *phiconLarge,
 572         HICON16 *phiconSmall, UINT16 nIcons
 573 ) {
 574     HICON       *ilarge,*ismall;
 575     UINT16      ret;
 576     int         i;
 577
 578     if (phiconLarge)
 579         ilarge = (HICON*)HeapAlloc(GetProcessHeap(),0,nIcons*sizeof(HICON));
 580     else
 581         ilarge = NULL;
 582     if (phiconSmall)
 583         ismall = (HICON*)HeapAlloc(GetProcessHeap(),0,nIcons*sizeof(HICON));
 584     else
 585         ismall = NULL;
 586     ret = ExtractIconExA(lpszFile,nIconIndex,ilarge,ismall,nIcons);
 587     if (ilarge) {
 588         for (i=0;i<nIcons;i++)
 589             phiconLarge[i]=ilarge[i];
 590         HeapFree(GetProcessHeap(),0,ilarge);
 591     }
 592     if (ismall) {
 593         for (i=0;i<nIcons;i++)
 594             phiconSmall[i]=ismall[i];
 595         HeapFree(GetProcessHeap(),0,ismall);
 596     }
 597     return ret;
 598 }
 599
 600 /*************************************************************************
 601  *                              ExtractAssociatedIcon   [SHELL.36]
 602  *
 603  * Return icon for given file (either from file itself or from associated
 604  * executable) and patch parameters if needed.
 605  */
 606 HICON16 WINAPI ExtractAssociatedIcon16(HINSTANCE16 hInst, LPSTR lpIconPath, LPWORD lpiIcon)
 607 {       HICON16 hIcon;
 608         WORD wDummyIcon = 0;
 609
 610         TRACE("\n");
 611
 612         if(lpiIcon == NULL)
 613             lpiIcon = &wDummyIcon;
 614
 615         hIcon = ExtractIcon16(hInst, lpIconPath, *lpiIcon);
 616
 617         if( hIcon < 2 )
 618         { if( hIcon == 1 ) /* no icons found in given file */
 619           { char  tempPath[0x80];
 620             UINT16  uRet = FindExecutable16(lpIconPath,NULL,tempPath);
 621
 622             if( uRet > 32 && tempPath[0] )
 623             { strcpy(lpIconPath,tempPath);
 624               hIcon = ExtractIcon16(hInst, lpIconPath, *lpiIcon);
 625               if( hIcon > 2 )
 626                 return hIcon;
 627             }
 628             else hIcon = 0;
 629           }
 630
 631           if( hIcon == 1 )
 632             *lpiIcon = 2;   /* MSDOS icon - we found .exe but no icons in it */
 633           else
 634             *lpiIcon = 6;   /* generic icon - found nothing */
 635
 636           GetModuleFileName16(hInst, lpIconPath, 0x80);
 637           hIcon = LoadIconA( hInst, MAKEINTRESOURCEA(*lpiIcon));
 638         }
 639         return hIcon;
 640 }
 641
 642 /*************************************************************************
 643  *                              ExtractAssociatedIconA (SHELL32.@)
 644  *
 645  * Return icon for given file (either from file itself or from associated
 646  * executable) and patch parameters if needed.
 647  */
 648 HICON WINAPI ExtractAssociatedIconA(HINSTANCE hInst, LPSTR lpIconPath, LPWORD lpiIcon)
 649 {       TRACE("\n");
 650         return ExtractAssociatedIcon16(hInst,lpIconPath,lpiIcon);
 651 }
 652
 653 /*************************************************************************
 654  *                              FindEnvironmentString   [SHELL.38]
 655  *
 656  * Returns a pointer into the DOS environment... Ugh.
 657  */
 658 LPSTR SHELL_FindString(LPSTR lpEnv, LPCSTR entry)
 659 { UINT16 l;
 660
 661   TRACE("\n");
 662
 663   l = strlen(entry);
 664   for( ; *lpEnv ; lpEnv+=strlen(lpEnv)+1 )
 665   { if( strncasecmp(lpEnv, entry, l) )
 666       continue;
 667         if( !*(lpEnv+l) )
 668             return (lpEnv + l);                 /* empty entry */
 669         else if ( *(lpEnv+l)== '=' )
 670             return (lpEnv + l + 1);
 671     }
 672     return NULL;
 673 }
 674
 675 /**********************************************************************/
 676
 677 SEGPTR WINAPI FindEnvironmentString16(LPSTR str)
 678 { SEGPTR  spEnv;
 679   LPSTR lpEnv,lpString;
 680   TRACE("\n");
 681
 682   spEnv = GetDOSEnvironment16();
 683
 684   lpEnv = MapSL(spEnv);
 685   lpString = (spEnv)?SHELL_FindString(lpEnv, str):NULL;
 686
 687     if( lpString )              /*  offset should be small enough */
 688         return spEnv + (lpString - lpEnv);
 689     return (SEGPTR)NULL;
 690 }
 691
 692 /*************************************************************************
 693  *                              DoEnvironmentSubst      [SHELL.37]
 694  *
 695  * Replace %KEYWORD% in the str with the value of variable KEYWORD
 696  * from "DOS" environment.
 697  */
 698 DWORD WINAPI DoEnvironmentSubst16(LPSTR str,WORD length)
 699 {
 700   LPSTR   lpEnv = MapSL(GetDOSEnvironment16());
 701   LPSTR   lpBuffer = (LPSTR)HeapAlloc( GetProcessHeap(), 0, length);
 702   LPSTR   lpstr = str;
 703   LPSTR   lpbstr = lpBuffer;
 704
 705   CharToOemA(str,str);
 706
 707   TRACE("accept %s\n", str);
 708
 709   while( *lpstr && lpbstr - lpBuffer < length )
 710    {
 711      LPSTR lpend = lpstr;
 712
 713      if( *lpstr == '%' )
 714        {
 715           do { lpend++; } while( *lpend && *lpend != '%' );
 716           if( *lpend == '%' && lpend - lpstr > 1 )      /* found key */
 717             {
 718                LPSTR lpKey;
 719               *lpend = '\0';
 720                lpKey = SHELL_FindString(lpEnv, lpstr+1);
 721                if( lpKey )                              /* found key value */
 722                  {
 723                    int l = strlen(lpKey);
 724
 725                    if( l > length - (lpbstr - lpBuffer) - 1 )
 726                      {
 727            WARN("-- Env subst aborted - string too short\n");
 728                       *lpend = '%';
 729                        break;
 730                      }
 731                    strcpy(lpbstr, lpKey);
 732                    lpbstr += l;
 733                  }
 734                else break;
 735               *lpend = '%';
 736                lpstr = lpend + 1;
 737             }
 738           else break;                                   /* back off and whine */
 739
 740           continue;
 741        }
 742
 743      *lpbstr++ = *lpstr++;
 744    }
 745
 746  *lpbstr = '\0';
 747   if( lpstr - str == strlen(str) )
 748     {
 749       strncpy(str, lpBuffer, length);
 750       length = 1;
 751     }
 752   else
 753       length = 0;
 754
 755   TRACE("-- return %s\n", str);
 756
 757   OemToCharA(str,str);
 758   HeapFree( GetProcessHeap(), 0, lpBuffer);
 759
 760   /*  Return str length in the LOWORD
 761    *  and 1 in HIWORD if subst was successful.
 762    */
 763  return (DWORD)MAKELONG(strlen(str), length);
 764 }
 765
 766 /*************************************************************************
 767  *                              ShellHookProc           [SHELL.103]
 768  * System-wide WH_SHELL hook.
 769  */
 770 LRESULT WINAPI ShellHookProc16(INT16 code, WPARAM16 wParam, LPARAM lParam)
 771 {
 772     TRACE("%i, %04x, %08x\n", code, wParam,
 773                                                       (unsigned)lParam );
 774     if( SHELL_hHook && SHELL_hWnd )
 775     {
 776         UINT16  uMsg = 0;
 777         switch( code )
 778         {
 779             case HSHELL_WINDOWCREATED:          uMsg = uMsgWndCreated;   break;
 780             case HSHELL_WINDOWDESTROYED:        uMsg = uMsgWndDestroyed; break;
 781             case HSHELL_ACTIVATESHELLWINDOW:    uMsg = uMsgShellActivate;
 782         }
 783         PostMessageA( SHELL_hWnd, uMsg, wParam, 0 );
 784     }
 785     return CallNextHookEx16( WH_SHELL, code, wParam, lParam );
 786 }
 787
 788 /*************************************************************************
 789  *                              RegisterShellHook       [SHELL.102]
 790  */
 791 BOOL WINAPI RegisterShellHook16(HWND16 hWnd, UINT16 uAction)
 792 {
 793     TRACE("%04x [%u]\n", hWnd, uAction );
 794
 795     switch( uAction )
 796     {
 797     case 2:  /* register hWnd as a shell window */
 798         if( !SHELL_hHook )
 799         {
 800             HMODULE16 hShell = GetModuleHandle16( "SHELL" );
 801             HOOKPROC16 hookProc = (HOOKPROC16)GetProcAddress16( hShell, (LPCSTR)103 );
 802             SHELL_hHook = SetWindowsHookEx16( WH_SHELL, hookProc, hShell, 0 );
 803             if ( SHELL_hHook )
 804             {
 805                 uMsgWndCreated = RegisterWindowMessageA( lpstrMsgWndCreated );
 806                 uMsgWndDestroyed = RegisterWindowMessageA( lpstrMsgWndDestroyed );
 807                 uMsgShellActivate = RegisterWindowMessageA( lpstrMsgShellActivate );
 808             }
 809             else
 810                 WARN("-- unable to install ShellHookProc()!\n");
 811         }
 812
 813         if ( SHELL_hHook )
 814             return ((SHELL_hWnd = hWnd) != 0);
 815         break;
 816
 817     default:
 818         WARN("-- unknown code %i\n", uAction );
 819         SHELL_hWnd = 0; /* just in case */
 820     }
 821     return FALSE;
 822 }
 823
 824
 825 /***********************************************************************
 826  *           DriveType   (SHELL.262)
 827  */
 828 UINT16 WINAPI DriveType16( UINT16 drive )
 829 {
 830     UINT ret;
 831     char path[] = "A:\\";
 832     path[0] += drive;
 833     ret = GetDriveTypeA(path);
 834     switch(ret)  /* some values are not supported in Win16 */
 835     {
 836     case DRIVE_CDROM:
 837         ret = DRIVE_REMOTE;
 838         break;
 839     case DRIVE_NO_ROOT_DIR:
 840         ret = DRIVE_UNKNOWN;
 841         break;
 842     }
 843     return ret;
 844 }