programs/winhlp32/winhelp.c

   1 /*
   2  * Help Viewer
   3  *
   4  * Copyright    1996 Ulrich Schmid <uschmid@mail.hh.provi.de>
   5  *              2002 Sylvain Petreolle <spetreolle@yahoo.fr>
   6  *              2002, 2008 Eric Pouech <eric.pouech@wanadoo.fr>
   7  *              2004 Ken Belleau <jamez@ivic.qc.ca>
   8  *              2008 Kirill K. Smirnov <lich@math.spbu.ru>
   9  *
  10  * This library is free software; you can redistribute it and/or
  11  * modify it under the terms of the GNU Lesser General Public
  12  * License as published by the Free Software Foundation; either
  13  * version 2.1 of the License, or (at your option) any later version.
  14  *
  15  * This library is distributed in the hope that it will be useful,
  16  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  17  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  18  * Lesser General Public License for more details.
  19  *
  20  * You should have received a copy of the GNU Lesser General Public
  21  * License along with this library; if not, write to the Free Software
  22  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  23  */
  24
  25 #include <assert.h>
  26 #include <stdio.h>
  27 #include <string.h>
  28 #include <stdarg.h>
  29 #include <stdlib.h>
  30
  31 #define NONAMELESSUNION
  32 #define NONAMELESSSTRUCT
  33
  34 #include "windef.h"
  35 #include "winbase.h"
  36 #include "wingdi.h"
  37 #include "winuser.h"
  38 #include "commdlg.h"
  39 #include "winhelp.h"
  40 #include "winhelp_res.h"
  41 #include "shellapi.h"
  42 #include "richedit.h"
  43 #include "commctrl.h"
  44
  45 #include "wine/debug.h"
  46
  47 WINE_DEFAULT_DEBUG_CHANNEL(winhelp);
  48
  49 WINHELP_GLOBALS Globals = {3, NULL, TRUE, NULL, NULL, NULL, NULL, NULL, {{{NULL,NULL}},0}, NULL};
  50
  51 #define CTL_ID_BUTTON   0x700
  52 #define CTL_ID_TEXT     0x701
  53
  54
  55 /***********************************************************************
  56  *
  57  *           WINHELP_InitFonts
  58  */
  59 static void WINHELP_InitFonts(HWND hWnd)
  60 {
  61     WINHELP_WINDOW *win = (WINHELP_WINDOW*) GetWindowLongPtr(hWnd, 0);
  62     LOGFONT logfontlist[] = {
  63         {-10, 0, 0, 0, 400, 0, 0, 0, DEFAULT_CHARSET, 0, 0, 0, 32, "Helv"},
  64         {-12, 0, 0, 0, 700, 0, 0, 0, DEFAULT_CHARSET, 0, 0, 0, 32, "Helv"},
  65         {-12, 0, 0, 0, 700, 0, 0, 0, DEFAULT_CHARSET, 0, 0, 0, 32, "Helv"},
  66         {-12, 0, 0, 0, 400, 0, 0, 0, DEFAULT_CHARSET, 0, 0, 0, 32, "Helv"},
  67         {-12, 0, 0, 0, 700, 0, 0, 0, DEFAULT_CHARSET, 0, 0, 0, 32, "Helv"},
  68         {-10, 0, 0, 0, 700, 0, 0, 0, DEFAULT_CHARSET, 0, 0, 0, 32, "Helv"},
  69         { -8, 0, 0, 0, 400, 0, 0, 0, DEFAULT_CHARSET, 0, 0, 0, 32, "Helv"}};
  70 #define FONTS_LEN (sizeof(logfontlist)/sizeof(*logfontlist))
  71
  72     static HFONT fonts[FONTS_LEN];
  73     static BOOL init = 0;
  74
  75     win->fonts_len = FONTS_LEN;
  76     win->fonts = fonts;
  77
  78     if (!init)
  79     {
  80         UINT i;
  81
  82         for (i = 0; i < FONTS_LEN; i++)
  83         {
  84             fonts[i] = CreateFontIndirect(&logfontlist[i]);
  85         }
  86
  87         init = 1;
  88     }
  89 }
  90
  91 static DWORD CALLBACK WINHELP_RtfStreamIn(DWORD_PTR cookie, BYTE* buff,
  92                                           LONG cb, LONG* pcb)
  93 {
  94     struct RtfData*     rd = (struct RtfData*)cookie;
  95
  96     if (rd->where >= rd->ptr) return 1;
  97     if (rd->where + cb > rd->ptr)
  98         cb = rd->ptr - rd->where;
  99     memcpy(buff, rd->where, cb);
 100     rd->where += cb;
 101     *pcb = cb;
 102     return 0;
 103 }
 104
 105 static void WINHELP_SetupText(HWND hTextWnd, WINHELP_WINDOW* win, ULONG relative)
 106 {
 107     /* At first clear area - needed by EM_POSFROMCHAR/EM_SETSCROLLPOS */
 108     SendMessage(hTextWnd, WM_SETTEXT, 0, (LPARAM)"");
 109     SendMessage(hTextWnd, WM_SETREDRAW, FALSE, 0);
 110     SendMessage(hTextWnd, EM_SETBKGNDCOLOR, 0, (LPARAM)win->info->sr_color);
 111     /* set word-wrap to window size (undocumented) */
 112     SendMessage(hTextWnd, EM_SETTARGETDEVICE, 0, 0);
 113     if (win->page)
 114     {
 115         struct RtfData  rd;
 116         EDITSTREAM      es;
 117         unsigned        cp = 0;
 118         POINTL          ptl;
 119         POINT           pt;
 120
 121
 122         if (HLPFILE_BrowsePage(win->page, &rd, win->font_scale, relative))
 123         {
 124             rd.where = rd.data;
 125             es.dwCookie = (DWORD_PTR)&rd;
 126             es.dwError = 0;
 127             es.pfnCallback = WINHELP_RtfStreamIn;
 128
 129             SendMessageW(hTextWnd, EM_STREAMIN, SF_RTF, (LPARAM)&es);
 130             cp = rd.char_pos_rel;
 131         }
 132         /* FIXME: else leaking potentially the rd.first_link chain */
 133         HeapFree(GetProcessHeap(), 0, rd.data);
 134         SendMessage(hTextWnd, EM_POSFROMCHAR, (WPARAM)&ptl, cp ? cp - 1 : 0);
 135         pt.x = 0; pt.y = ptl.y;
 136         SendMessage(hTextWnd, EM_SETSCROLLPOS, 0, (LPARAM)&pt);
 137     }
 138     SendMessage(hTextWnd, WM_SETREDRAW, TRUE, 0);
 139     RedrawWindow(hTextWnd, NULL, NULL, RDW_FRAME|RDW_INVALIDATE);
 140 }
 141
 142 /***********************************************************************
 143  *
 144  *           WINHELP_GetOpenFileName
 145  */
 146 BOOL WINHELP_GetOpenFileName(LPSTR lpszFile, int len)
 147 {
 148     OPENFILENAME openfilename;
 149     CHAR szDir[MAX_PATH];
 150     CHAR szzFilter[2 * MAX_STRING_LEN + 100];
 151     LPSTR p = szzFilter;
 152
 153     WINE_TRACE("()\n");
 154
 155     LoadString(Globals.hInstance, STID_HELP_FILES_HLP, p, MAX_STRING_LEN);
 156     p += strlen(p) + 1;
 157     lstrcpy(p, "*.hlp");
 158     p += strlen(p) + 1;
 159     LoadString(Globals.hInstance, STID_ALL_FILES, p, MAX_STRING_LEN);
 160     p += strlen(p) + 1;
 161     lstrcpy(p, "*.*");
 162     p += strlen(p) + 1;
 163     *p = '\0';
 164
 165     GetCurrentDirectory(sizeof(szDir), szDir);
 166
 167     lpszFile[0]='\0';
 168
 169     openfilename.lStructSize       = sizeof(OPENFILENAME);
 170     openfilename.hwndOwner         = (Globals.active_win ? Globals.active_win->hMainWnd : 0);
 171     openfilename.hInstance         = Globals.hInstance;
 172     openfilename.lpstrFilter       = szzFilter;
 173     openfilename.lpstrCustomFilter = 0;
 174     openfilename.nMaxCustFilter    = 0;
 175     openfilename.nFilterIndex      = 1;
 176     openfilename.lpstrFile         = lpszFile;
 177     openfilename.nMaxFile          = len;
 178     openfilename.lpstrFileTitle    = 0;
 179     openfilename.nMaxFileTitle     = 0;
 180     openfilename.lpstrInitialDir   = szDir;
 181     openfilename.lpstrTitle        = 0;
 182     openfilename.Flags             = OFN_ENABLESIZING;
 183     openfilename.nFileOffset       = 0;
 184     openfilename.nFileExtension    = 0;
 185     openfilename.lpstrDefExt       = 0;
 186     openfilename.lCustData         = 0;
 187     openfilename.lpfnHook          = 0;
 188     openfilename.lpTemplateName    = 0;
 189
 190     return GetOpenFileName(&openfilename);
 191 }
 192
 193 /***********************************************************************
 194  *
 195  *           WINHELP_MessageBoxIDS_s
 196  */
 197 static INT WINHELP_MessageBoxIDS_s(UINT ids_text, LPCSTR str, UINT ids_title, WORD type)
 198 {
 199     CHAR text[MAX_STRING_LEN];
 200     CHAR newtext[MAX_STRING_LEN + MAX_PATH];
 201
 202     LoadString(Globals.hInstance, ids_text, text, sizeof(text));
 203     wsprintf(newtext, text, str);
 204
 205     return MessageBox(0, newtext, MAKEINTRESOURCE(ids_title), type);
 206 }
 207
 208 /***********************************************************************
 209  *
 210  *           WINHELP_LookupHelpFile
 211  */
 212 HLPFILE* WINHELP_LookupHelpFile(LPCSTR lpszFile)
 213 {
 214     HLPFILE*        hlpfile;
 215     char szFullName[MAX_PATH];
 216     char szAddPath[MAX_PATH];
 217     char *p;
 218
 219     /*
 220      * NOTE: This is needed by popup windows only.
 221      * In other cases it's not needed but does not hurt though.
 222      */
 223     if (Globals.active_win && Globals.active_win->page && Globals.active_win->page->file)
 224     {
 225         strcpy(szAddPath, Globals.active_win->page->file->lpszPath);
 226         p = strrchr(szAddPath, '\\');
 227         if (p) *p = 0;
 228     }
 229
 230     /*
 231      * FIXME: Should we swap conditions?
 232      */
 233     if (!SearchPath(NULL, lpszFile, ".hlp", MAX_PATH, szFullName, NULL) &&
 234         !SearchPath(szAddPath, lpszFile, ".hlp", MAX_PATH, szFullName, NULL))
 235     {
 236         if (WINHELP_MessageBoxIDS_s(STID_FILE_NOT_FOUND_s, lpszFile, STID_WHERROR,
 237                                     MB_YESNO|MB_ICONQUESTION) != IDYES)
 238             return NULL;
 239         if (!WINHELP_GetOpenFileName(szFullName, MAX_PATH))
 240             return NULL;
 241     }
 242     hlpfile = HLPFILE_ReadHlpFile(szFullName);
 243     if (!hlpfile)
 244         WINHELP_MessageBoxIDS_s(STID_HLPFILE_ERROR_s, lpszFile,
 245                                 STID_WHERROR, MB_OK|MB_ICONSTOP);
 246     return hlpfile;
 247 }
 248
 249 /******************************************************************
 250  *              WINHELP_GetWindowInfo
 251  *
 252  *
 253  */
 254 HLPFILE_WINDOWINFO*     WINHELP_GetWindowInfo(HLPFILE* hlpfile, LPCSTR name)
 255 {
 256     static      HLPFILE_WINDOWINFO      mwi;
 257     unsigned int     i;
 258
 259     if (!name || !name[0])
 260         name = Globals.active_win->info->name;
 261
 262     if (hlpfile)
 263         for (i = 0; i < hlpfile->numWindows; i++)
 264             if (!lstrcmpi(hlpfile->windows[i].name, name))
 265                 return &hlpfile->windows[i];
 266
 267     if (strcmp(name, "main") != 0)
 268     {
 269         WINE_FIXME("Couldn't find window info for %s\n", name);
 270         assert(0);
 271         return NULL;
 272     }
 273     if (!mwi.name[0])
 274     {
 275         strcpy(mwi.type, "primary");
 276         strcpy(mwi.name, "main");
 277         if (hlpfile && hlpfile->lpszTitle[0])
 278         {
 279             char        tmp[128];
 280             LoadString(Globals.hInstance, STID_WINE_HELP, tmp, sizeof(tmp));
 281             snprintf(mwi.caption, sizeof(mwi.caption), "%s %s - %s",
 282                      hlpfile->lpszTitle, tmp, hlpfile->lpszPath);
 283         }
 284         else
 285             LoadString(Globals.hInstance, STID_WINE_HELP, mwi.caption, sizeof(mwi.caption));
 286         mwi.origin.x = mwi.origin.y = mwi.size.cx = mwi.size.cy = CW_USEDEFAULT;
 287         mwi.style = SW_SHOW;
 288         mwi.win_style = WS_OVERLAPPEDWINDOW;
 289         mwi.sr_color = mwi.nsr_color = 0xFFFFFF;
 290     }
 291     return &mwi;
 292 }
 293
 294 /******************************************************************
 295  *              HLPFILE_GetPopupWindowInfo
 296  *
 297  *
 298  */
 299 static HLPFILE_WINDOWINFO*     WINHELP_GetPopupWindowInfo(HLPFILE* hlpfile,
 300                                                           WINHELP_WINDOW* parent, LPARAM mouse)
 301 {
 302     static      HLPFILE_WINDOWINFO      wi;
 303
 304     RECT parent_rect;
 305
 306     wi.type[0] = wi.name[0] = wi.caption[0] = '\0';
 307
 308     /* Calculate horizontal size and position of a popup window */
 309     GetWindowRect(parent->hMainWnd, &parent_rect);
 310     wi.size.cx = (parent_rect.right  - parent_rect.left) / 2;
 311     wi.size.cy = 10; /* need a non null value, so that border are taken into account while computing */
 312
 313     wi.origin.x = (short)LOWORD(mouse);
 314     wi.origin.y = (short)HIWORD(mouse);
 315     ClientToScreen(parent->hMainWnd, &wi.origin);
 316     wi.origin.x -= wi.size.cx / 2;
 317     wi.origin.x  = min(wi.origin.x, GetSystemMetrics(SM_CXSCREEN) - wi.size.cx);
 318     wi.origin.x  = max(wi.origin.x, 0);
 319
 320     wi.style = SW_SHOW;
 321     wi.win_style = WS_POPUP | WS_BORDER;
 322     if (parent->page->file->has_popup_color)
 323         wi.sr_color = parent->page->file->popup_color;
 324     else
 325         wi.sr_color = parent->info->sr_color;
 326     wi.nsr_color = 0xFFFFFF;
 327
 328     return &wi;
 329 }
 330
 331 typedef struct
 332 {
 333     WORD size;
 334     WORD command;
 335     LONG data;
 336     LONG reserved;
 337     WORD ofsFilename;
 338     WORD ofsData;
 339 } WINHELP,*LPWINHELP;
 340
 341 static BOOL WINHELP_HasWorkingWindow(void)
 342 {
 343     if (!Globals.active_win) return FALSE;
 344     if (Globals.active_win->next || Globals.win_list != Globals.active_win) return TRUE;
 345     return Globals.active_win->page != NULL && Globals.active_win->page->file != NULL;
 346 }
 347
 348 /******************************************************************
 349  *              WINHELP_HandleCommand
 350  *
 351  *
 352  */
 353 static LRESULT  WINHELP_HandleCommand(HWND hSrcWnd, LPARAM lParam)
 354 {
 355     COPYDATASTRUCT*     cds = (COPYDATASTRUCT*)lParam;
 356     WINHELP*            wh;
 357
 358     if (cds->dwData != 0xA1DE505)
 359     {
 360         WINE_FIXME("Wrong magic number (%08lx)\n", cds->dwData);
 361         return 0;
 362     }
 363
 364     wh = cds->lpData;
 365
 366     if (wh)
 367     {
 368         char*   ptr = (wh->ofsFilename) ? (LPSTR)wh + wh->ofsFilename : NULL;
 369
 370         WINE_TRACE("Got[%u]: cmd=%u data=%08x fn=%s\n",
 371                    wh->size, wh->command, wh->data, ptr);
 372         switch (wh->command)
 373         {
 374         case HELP_CONTEXT:
 375             if (ptr)
 376             {
 377                 MACRO_JumpContext(ptr, "main", wh->data);
 378             }
 379             if (!WINHELP_HasWorkingWindow()) MACRO_Exit();
 380             break;
 381         case HELP_QUIT:
 382             MACRO_Exit();
 383             break;
 384         case HELP_CONTENTS:
 385             if (ptr)
 386             {
 387                 MACRO_JumpContents(ptr, "main");
 388             }
 389             if (!WINHELP_HasWorkingWindow()) MACRO_Exit();
 390             break;
 391         case HELP_HELPONHELP:
 392             MACRO_HelpOn();
 393             if (!WINHELP_HasWorkingWindow()) MACRO_Exit();
 394             break;
 395         /* case HELP_SETINDEX: */
 396         case HELP_SETCONTENTS:
 397             if (ptr)
 398             {
 399                 MACRO_SetContents(ptr, wh->data);
 400             }
 401             break;
 402         case HELP_CONTEXTPOPUP:
 403             if (ptr)
 404             {
 405                 MACRO_PopupContext(ptr, wh->data);
 406             }
 407             break;
 408         /* case HELP_FORCEFILE:*/
 409         /* case HELP_CONTEXTMENU: */
 410         case HELP_FINDER:
 411             /* in fact, should be the topic dialog box */
 412             WINE_FIXME("HELP_FINDER: stub\n");
 413             if (ptr)
 414             {
 415                 MACRO_JumpHash(ptr, "main", 0);
 416             }
 417             break;
 418         /* case HELP_WM_HELP: */
 419         /* case HELP_SETPOPUP_POS: */
 420         /* case HELP_KEY: */
 421         /* case HELP_COMMAND: */
 422         /* case HELP_PARTIALKEY: */
 423         /* case HELP_MULTIKEY: */
 424         /* case HELP_SETWINPOS: */
 425         default:
 426             WINE_FIXME("Unhandled command (%x) for remote winhelp control\n", wh->command);
 427             break;
 428         }
 429     }
 430     /* Always return success for now */
 431     return 1;
 432 }
 433
 434 void            WINHELP_LayoutMainWindow(WINHELP_WINDOW* win)
 435 {
 436     RECT        rect, button_box_rect;
 437     INT         text_top = 0;
 438     HWND        hButtonBoxWnd = GetDlgItem(win->hMainWnd, CTL_ID_BUTTON);
 439     HWND        hTextWnd = GetDlgItem(win->hMainWnd, CTL_ID_TEXT);
 440
 441     GetClientRect(win->hMainWnd, &rect);
 442
 443     /* Update button box and text Window */
 444     SetWindowPos(hButtonBoxWnd, HWND_TOP,
 445                  rect.left, rect.top,
 446                  rect.right - rect.left,
 447                  rect.bottom - rect.top, 0);
 448
 449     if (GetWindowRect(hButtonBoxWnd, &button_box_rect))
 450         text_top = rect.top + button_box_rect.bottom - button_box_rect.top;
 451
 452     SetWindowPos(hTextWnd, HWND_TOP,
 453                  rect.left, text_top,
 454                  rect.right - rect.left,
 455                  rect.bottom - text_top, 0);
 456
 457 }
 458
 459 /******************************************************************
 460  *              WINHELP_DeleteButtons
 461  *
 462  */
 463 static void WINHELP_DeleteButtons(WINHELP_WINDOW* win)
 464 {
 465     WINHELP_BUTTON*     b;
 466     WINHELP_BUTTON*     bp;
 467
 468     for (b = win->first_button; b; b = bp)
 469     {
 470         DestroyWindow(b->hWnd);
 471         bp = b->next;
 472         HeapFree(GetProcessHeap(), 0, b);
 473     }
 474     win->first_button = NULL;
 475 }
 476
 477 /******************************************************************
 478  *              WINHELP_DeleteBackSet
 479  *
 480  */
 481 void WINHELP_DeleteBackSet(WINHELP_WINDOW* win)
 482 {
 483     unsigned int i;
 484
 485     for (i = 0; i < win->back.index; i++)
 486     {
 487         HLPFILE_FreeHlpFile(win->back.set[i].page->file);
 488         win->back.set[i].page = NULL;
 489     }
 490     win->back.index = 0;
 491 }
 492
 493 /******************************************************************
 494  *             WINHELP_DeletePageLinks
 495  *
 496  */
 497 static void WINHELP_DeletePageLinks(HLPFILE_PAGE* page)
 498 {
 499     HLPFILE_LINK*       curr;
 500     HLPFILE_LINK*       next;
 501
 502     for (curr = page->first_link; curr; curr = next)
 503     {
 504         next = curr->next;
 505         HeapFree(GetProcessHeap(), 0, curr);
 506     }
 507 }
 508
 509 /***********************************************************************
 510  *
 511  *           WINHELP_GrabWindow
 512  */
 513 WINHELP_WINDOW* WINHELP_GrabWindow(WINHELP_WINDOW* win)
 514 {
 515     WINE_TRACE("Grab %p#%d++\n", win, win->ref_count);
 516     win->ref_count++;
 517     return win;
 518 }
 519
 520 /***********************************************************************
 521  *
 522  *           WINHELP_RelaseWindow
 523  */
 524 BOOL WINHELP_ReleaseWindow(WINHELP_WINDOW* win)
 525 {
 526     WINE_TRACE("Release %p#%d--\n", win, win->ref_count);
 527
 528     if (!--win->ref_count)
 529     {
 530         DestroyWindow(win->hMainWnd);
 531         return FALSE;
 532     }
 533     return TRUE;
 534 }
 535
 536 /***********************************************************************
 537  *
 538  *           WINHELP_DeleteWindow
 539  */
 540 static void WINHELP_DeleteWindow(WINHELP_WINDOW* win)
 541 {
 542     WINHELP_WINDOW**    w;
 543     BOOL bExit;
 544     HWND hTextWnd;
 545
 546     for (w = &Globals.win_list; *w; w = &(*w)->next)
 547     {
 548         if (*w == win)
 549         {
 550             *w = win->next;
 551             break;
 552         }
 553     }
 554     bExit = (Globals.wVersion >= 4 && !lstrcmpi(win->info->name, "main"));
 555
 556     if (Globals.active_win == win)
 557     {
 558         Globals.active_win = Globals.win_list;
 559         if (Globals.win_list)
 560             SetActiveWindow(Globals.win_list->hMainWnd);
 561     }
 562
 563     if (win == Globals.active_popup)
 564         Globals.active_popup = NULL;
 565
 566     hTextWnd = GetDlgItem(win->hMainWnd, CTL_ID_TEXT);
 567     SetWindowLongPtr(hTextWnd, GWLP_WNDPROC,
 568                      (LONG_PTR)win->origRicheditWndProc);
 569
 570     WINHELP_DeleteButtons(win);
 571
 572     if (win->page) WINHELP_DeletePageLinks(win->page);
 573     if (win->hShadowWnd) DestroyWindow(win->hShadowWnd);
 574     if (win->hHistoryWnd) DestroyWindow(win->hHistoryWnd);
 575
 576     DeleteObject(win->hBrush);
 577
 578     WINHELP_DeleteBackSet(win);
 579
 580     if (win->page) HLPFILE_FreeHlpFile(win->page->file);
 581     HeapFree(GetProcessHeap(), 0, win);
 582
 583     if (bExit) MACRO_Exit();
 584     if (!Globals.win_list)
 585         PostQuitMessage(0);
 586 }
 587
 588 static char* WINHELP_GetCaption(WINHELP_WNDPAGE* wpage)
 589 {
 590     if (wpage->wininfo->caption[0]) return wpage->wininfo->caption;
 591     return wpage->page->file->lpszTitle;
 592 }
 593
 594 static void WINHELP_RememberPage(WINHELP_WINDOW* win, WINHELP_WNDPAGE* wpage)
 595 {
 596     unsigned        num;
 597
 598     if (!Globals.history.index || Globals.history.set[0].page != wpage->page)
 599     {
 600         num = sizeof(Globals.history.set) / sizeof(Globals.history.set[0]);
 601         /* we're full, remove latest entry */
 602         if (Globals.history.index == num)
 603         {
 604             HLPFILE_FreeHlpFile(Globals.history.set[num - 1].page->file);
 605             Globals.history.index--;
 606         }
 607         memmove(&Globals.history.set[1], &Globals.history.set[0],
 608                 Globals.history.index * sizeof(Globals.history.set[0]));
 609         Globals.history.set[0] = *wpage;
 610         Globals.history.index++;
 611         wpage->page->file->wRefCount++;
 612     }
 613     if (win->hHistoryWnd) InvalidateRect(win->hHistoryWnd, NULL, TRUE);
 614
 615     num = sizeof(win->back.set) / sizeof(win->back.set[0]);
 616     if (win->back.index == num)
 617     {
 618         /* we're full, remove latest entry */
 619         HLPFILE_FreeHlpFile(win->back.set[0].page->file);
 620         memmove(&win->back.set[0], &win->back.set[1],
 621                 (num - 1) * sizeof(win->back.set[0]));
 622         win->back.index--;
 623     }
 624     win->back.set[win->back.index++] = *wpage;
 625     wpage->page->file->wRefCount++;
 626 }
 627
 628 /***********************************************************************
 629  *
 630  *           WINHELP_FindLink
 631  */
 632 static HLPFILE_LINK* WINHELP_FindLink(WINHELP_WINDOW* win, LPARAM pos)
 633 {
 634     HLPFILE_LINK*           link;
 635     POINTL                  mouse_ptl, char_ptl, char_next_ptl;
 636     DWORD                   cp;
 637
 638     if (!win->page) return NULL;
 639
 640     mouse_ptl.x = (short)LOWORD(pos);
 641     mouse_ptl.y = (short)HIWORD(pos);
 642     cp = SendMessageW(GetDlgItem(win->hMainWnd, CTL_ID_TEXT), EM_CHARFROMPOS,
 643                       0, (LPARAM)&mouse_ptl);
 644
 645     for (link = win->page->first_link; link; link = link->next)
 646     {
 647         if (link->cpMin <= cp && cp <= link->cpMax)
 648         {
 649             /* check whether we're at end of line */
 650             SendMessageW(GetDlgItem(win->hMainWnd, CTL_ID_TEXT), EM_POSFROMCHAR,
 651                          (LPARAM)&char_ptl, cp);
 652             SendMessageW(GetDlgItem(win->hMainWnd, CTL_ID_TEXT), EM_POSFROMCHAR,
 653                          (LPARAM)&char_next_ptl, cp + 1);
 654             if (link->bHotSpot)
 655             {
 656                 HLPFILE_HOTSPOTLINK*    hslink = (HLPFILE_HOTSPOTLINK*)link;
 657                 if ((mouse_ptl.x < char_ptl.x + hslink->x) ||
 658                     (mouse_ptl.x >= char_ptl.x + hslink->x + hslink->width) ||
 659                     (mouse_ptl.y < char_ptl.y + hslink->y) ||
 660                     (mouse_ptl.y >= char_ptl.y + hslink->y + hslink->height))
 661                     continue;
 662                 break;
 663             }
 664             if (char_next_ptl.y != char_ptl.y || mouse_ptl.x >= char_next_ptl.x)
 665                 link = NULL;
 666             break;
 667         }
 668     }
 669     return link;
 670 }
 671
 672 static LRESULT CALLBACK WINHELP_RicheditWndProc(HWND hWnd, UINT msg,
 673                                                 WPARAM wParam, LPARAM lParam)
 674 {
 675     WINHELP_WINDOW *win = (WINHELP_WINDOW*) GetWindowLongPtr(GetParent(hWnd), 0);
 676     DWORD messagePos;
 677     POINT pt;
 678     switch(msg)
 679     {
 680         case WM_SETCURSOR:
 681             messagePos = GetMessagePos();
 682             pt.x = (short)LOWORD(messagePos);
 683             pt.y = (short)HIWORD(messagePos);
 684             ScreenToClient(hWnd, &pt);
 685             if (win->page && WINHELP_FindLink(win, MAKELPARAM(pt.x, pt.y)))
 686             {
 687                 SetCursor(win->hHandCur);
 688                 return 0;
 689             }
 690             /* fall through */
 691         default:
 692             return CallWindowProcA(win->origRicheditWndProc, hWnd, msg, wParam, lParam);
 693     }
 694 }
 695
 696 /***********************************************************************
 697  *
 698  *           WINHELP_CreateHelpWindow
 699  */
 700 BOOL WINHELP_CreateHelpWindow(WINHELP_WNDPAGE* wpage, int nCmdShow, BOOL remember)
 701 {
 702     WINHELP_WINDOW*     win = NULL;
 703     BOOL                bPrimary, bPopup, bReUsed = FALSE;
 704     HICON               hIcon;
 705     HWND                hTextWnd = NULL;
 706
 707     bPrimary = !lstrcmpi(wpage->wininfo->name, "main");
 708     bPopup = !bPrimary && (wpage->wininfo->win_style & WS_POPUP);
 709
 710     if (!bPopup)
 711     {
 712         for (win = Globals.win_list; win; win = win->next)
 713         {
 714             if (!lstrcmpi(win->info->name, wpage->wininfo->name))
 715             {
 716                 POINT   pt = {0, 0};
 717                 SIZE    sz = {0, 0};
 718                 DWORD   flags = SWP_NOSIZE | SWP_NOMOVE;
 719
 720                 WINHELP_DeleteButtons(win);
 721                 bReUsed = TRUE;
 722                 SetWindowText(win->hMainWnd, WINHELP_GetCaption(wpage));
 723                 if (wpage->wininfo->origin.x != CW_USEDEFAULT &&
 724                     wpage->wininfo->origin.y != CW_USEDEFAULT)
 725                 {
 726                     pt = wpage->wininfo->origin;
 727                     flags &= ~SWP_NOSIZE;
 728                 }
 729                 if (wpage->wininfo->size.cx != CW_USEDEFAULT &&
 730                     wpage->wininfo->size.cy != CW_USEDEFAULT)
 731                 {
 732                     sz = wpage->wininfo->size;
 733                     flags &= ~SWP_NOMOVE;
 734                 }
 735                 SetWindowPos(win->hMainWnd, HWND_TOP, pt.x, pt.y, sz.cx, sz.cy, flags);
 736
 737                 if (wpage->page && win->page && wpage->page->file != win->page->file)
 738                     WINHELP_DeleteBackSet(win);
 739                 WINHELP_InitFonts(win->hMainWnd);
 740
 741                 win->page = wpage->page;
 742                 win->info = wpage->wininfo;
 743                 hTextWnd = GetDlgItem(win->hMainWnd, CTL_ID_TEXT);
 744                 WINHELP_SetupText(hTextWnd, win, wpage->relative);
 745
 746                 InvalidateRect(win->hMainWnd, NULL, TRUE);
 747                 if (win->hHistoryWnd) InvalidateRect(win->hHistoryWnd, NULL, TRUE);
 748
 749                 break;
 750             }
 751         }
 752     }
 753
 754     if (!win)
 755     {
 756         /* Initialize WINHELP_WINDOW struct */
 757         win = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(WINHELP_WINDOW));
 758         if (!win) return FALSE;
 759         win->next = Globals.win_list;
 760         Globals.win_list = win;
 761
 762         win->hHandCur = LoadCursorW(0, (LPWSTR)IDC_HAND);
 763         win->back.index = 0;
 764         win->font_scale = 1;
 765         WINHELP_GrabWindow(win);
 766     }
 767     win->page = wpage->page;
 768     win->info = wpage->wininfo;
 769     WINHELP_GrabWindow(win);
 770
 771     if (!bPopup && wpage->page && remember)
 772     {
 773         WINHELP_RememberPage(win, wpage);
 774     }
 775
 776     if (bPopup)
 777         Globals.active_popup = win;
 778     else
 779         Globals.active_win = win;
 780
 781     /* Initialize default pushbuttons */
 782     if (bPrimary && wpage->page)
 783     {
 784         CHAR    buffer[MAX_STRING_LEN];
 785
 786         LoadString(Globals.hInstance, STID_CONTENTS, buffer, sizeof(buffer));
 787         MACRO_CreateButton("BTN_CONTENTS", buffer, "Contents()");
 788         LoadString(Globals.hInstance, STID_INDEX, buffer, sizeof(buffer));
 789         MACRO_CreateButton("BTN_INDEX", buffer, "Finder()");
 790         LoadString(Globals.hInstance, STID_BACK, buffer, sizeof(buffer));
 791         MACRO_CreateButton("BTN_BACK", buffer, "Back()");
 792         if (win->back.index <= 1) MACRO_DisableButton("BTN_BACK");
 793     }
 794
 795     if (!bReUsed)
 796     {
 797         win->hMainWnd = CreateWindowEx((bPopup) ? WS_EX_TOOLWINDOW : 0, MAIN_WIN_CLASS_NAME,
 798                                        WINHELP_GetCaption(wpage),
 799                                        bPrimary ? WS_OVERLAPPEDWINDOW : wpage->wininfo->win_style,
 800                                        wpage->wininfo->origin.x, wpage->wininfo->origin.y,
 801                                        wpage->wininfo->size.cx, wpage->wininfo->size.cy,
 802                                        bPopup ? Globals.active_win->hMainWnd : NULL,
 803                                        bPrimary ? LoadMenu(Globals.hInstance, MAKEINTRESOURCE(MAIN_MENU)) : 0,
 804                                        Globals.hInstance, win);
 805         if (!bPopup)
 806             /* Create button box and text Window */
 807             CreateWindow(BUTTON_BOX_WIN_CLASS_NAME, "", WS_CHILD | WS_VISIBLE,
 808                          0, 0, 0, 0, win->hMainWnd, (HMENU)CTL_ID_BUTTON, Globals.hInstance, NULL);
 809
 810         hTextWnd = CreateWindow(RICHEDIT_CLASS, NULL,
 811                                 ES_MULTILINE | ES_READONLY | WS_CHILD | WS_HSCROLL | WS_VSCROLL | WS_VISIBLE,
 812                                 0, 0, 0, 0, win->hMainWnd, (HMENU)CTL_ID_TEXT, Globals.hInstance, NULL);
 813         SendMessage(hTextWnd, EM_SETEVENTMASK, 0,
 814                     SendMessage(hTextWnd, EM_GETEVENTMASK, 0, 0) | ENM_MOUSEEVENTS);
 815         win->origRicheditWndProc = (WNDPROC)SetWindowLongPtr(hTextWnd, GWLP_WNDPROC,
 816                                                              (LONG_PTR)WINHELP_RicheditWndProc);
 817     }
 818
 819     hIcon = (wpage->page) ? wpage->page->file->hIcon : NULL;
 820     if (!hIcon) hIcon = LoadImage(Globals.hInstance, MAKEINTRESOURCE(IDI_WINHELP), IMAGE_ICON,
 821                                   GetSystemMetrics(SM_CXSMICON), GetSystemMetrics(SM_CYSMICON), LR_SHARED);
 822     SendMessage(win->hMainWnd, WM_SETICON, ICON_SMALL, (DWORD_PTR)hIcon);
 823
 824     /* Initialize file specific pushbuttons */
 825     if (!(wpage->wininfo->win_style & WS_POPUP) && wpage->page)
 826     {
 827         HLPFILE_MACRO  *macro;
 828         for (macro = wpage->page->file->first_macro; macro; macro = macro->next)
 829             MACRO_ExecuteMacro(win, macro->lpszMacro);
 830
 831         for (macro = wpage->page->first_macro; macro; macro = macro->next)
 832             MACRO_ExecuteMacro(win, macro->lpszMacro);
 833     }
 834     /* See #17681, in some cases, the newly created window is closed by the macros it contains
 835      * (braindead), so deal with this case
 836      */
 837     for (win = Globals.win_list; win; win = win->next)
 838     {
 839         if (!lstrcmpi(win->info->name, wpage->wininfo->name)) break;
 840     }
 841     if (!win || !WINHELP_ReleaseWindow(win)) return TRUE;
 842
 843     if (bPopup)
 844     {
 845         DWORD   mask = SendMessage(hTextWnd, EM_GETEVENTMASK, 0, 0);
 846         RECT    rect;
 847
 848         win->font_scale = Globals.active_win->font_scale;
 849         WINHELP_SetupText(hTextWnd, win, wpage->relative);
 850
 851         /* we need the window to be shown for richedit to compute the size */
 852         ShowWindow(win->hMainWnd, nCmdShow);
 853         SendMessage(hTextWnd, EM_SETEVENTMASK, 0, mask | ENM_REQUESTRESIZE);
 854         SendMessage(hTextWnd, EM_REQUESTRESIZE, 0, 0);
 855         SendMessage(hTextWnd, EM_SETEVENTMASK, 0, mask);
 856
 857         GetWindowRect(win->hMainWnd, &rect);
 858         win->hShadowWnd = CreateWindowEx(WS_EX_TOOLWINDOW, SHADOW_WIN_CLASS_NAME,
 859                                          "", WS_POPUP | WS_VISIBLE,
 860                                          rect.left + SHADOW_DX, rect.top + SHADOW_DY,
 861                                          rect.right - rect.left,
 862                                          rect.bottom - rect.top,
 863                                          Globals.active_win->hMainWnd, 0,
 864                                          Globals.hInstance, NULL);
 865         SetWindowPos(win->hMainWnd, win->hShadowWnd, 0, 0, 0, 0,
 866                      SWP_NOSIZE | SWP_NOMOVE);
 867     }
 868     else
 869     {
 870         WINHELP_SetupText(hTextWnd, win, wpage->relative);
 871         WINHELP_LayoutMainWindow(win);
 872         ShowWindow(win->hMainWnd, nCmdShow);
 873     }
 874
 875     return TRUE;
 876 }
 877
 878 /******************************************************************
 879  *             WINHELP_OpenHelpWindow
 880  * Main function to search for a page and display it in a window
 881  */
 882 BOOL WINHELP_OpenHelpWindow(HLPFILE_PAGE* (*lookup)(HLPFILE*, LONG, ULONG*),
 883                             HLPFILE* hlpfile, LONG val, HLPFILE_WINDOWINFO* wi,
 884                             int nCmdShow)
 885 {
 886     WINHELP_WNDPAGE     wpage;
 887
 888     wpage.page = lookup(hlpfile, val, &wpage.relative);
 889     if (wpage.page) wpage.page->file->wRefCount++;
 890     wpage.wininfo = wi;
 891     return WINHELP_CreateHelpWindow(&wpage, nCmdShow, TRUE);
 892 }
 893
 894 /******************************************************************
 895  *             WINHELP_HandleTextMouse
 896  *
 897  */
 898 static BOOL WINHELP_HandleTextMouse(WINHELP_WINDOW* win, UINT msg, LPARAM lParam)
 899 {
 900     HLPFILE*                hlpfile;
 901     HLPFILE_LINK*           link;
 902     BOOL                    ret = FALSE;
 903
 904     switch (msg)
 905     {
 906     case WM_LBUTTONDOWN:
 907         if ((link = WINHELP_FindLink(win, lParam)))
 908         {
 909             HLPFILE_WINDOWINFO*     wi;
 910
 911             switch (link->cookie)
 912             {
 913             case hlp_link_link:
 914                 if ((hlpfile = WINHELP_LookupHelpFile(link->string)))
 915                 {
 916                     if (link->window == -1)
 917                         wi = win->info;
 918                     else if (link->window < hlpfile->numWindows)
 919                         wi = &hlpfile->windows[link->window];
 920                     else
 921                     {
 922                         WINE_WARN("link to window %d/%d\n", link->window, hlpfile->numWindows);
 923                         break;
 924                     }
 925                     WINHELP_OpenHelpWindow(HLPFILE_PageByHash, hlpfile, link->hash, wi, SW_NORMAL);
 926                 }
 927                 break;
 928             case hlp_link_popup:
 929                 if ((hlpfile = WINHELP_LookupHelpFile(link->string)))
 930                     WINHELP_OpenHelpWindow(HLPFILE_PageByHash, hlpfile, link->hash,
 931                                            WINHELP_GetPopupWindowInfo(hlpfile, win, lParam),
 932                                            SW_NORMAL);
 933                 break;
 934             case hlp_link_macro:
 935                 MACRO_ExecuteMacro(win, link->string);
 936                 break;
 937             default:
 938                 WINE_FIXME("Unknown link cookie %d\n", link->cookie);
 939             }
 940             ret = TRUE;
 941         }
 942         break;
 943     }
 944     return ret;
 945 }
 946
 947 /***********************************************************************
 948  *
 949  *           WINHELP_CheckPopup
 950  */
 951 static BOOL WINHELP_CheckPopup(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam, LRESULT* lret)
 952 {
 953     WINHELP_WINDOW*     popup;
 954
 955     if (!Globals.active_popup) return FALSE;
 956
 957     switch (msg)
 958     {
 959     case WM_NOTIFY:
 960         {
 961             MSGFILTER*  msgf = (MSGFILTER*)lParam;
 962             if (msgf->nmhdr.code == EN_MSGFILTER)
 963             {
 964                 if (!WINHELP_CheckPopup(hWnd, msgf->msg, msgf->wParam, msgf->lParam, NULL))
 965                     return FALSE;
 966                 if (lret) *lret = 1;
 967                 return TRUE;
 968             }
 969         }
 970         break;
 971     case WM_ACTIVATE:
 972         if (wParam != WA_INACTIVE || (HWND)lParam == Globals.active_win->hMainWnd ||
 973             (HWND)lParam == Globals.active_popup->hMainWnd ||
 974             GetWindow((HWND)lParam, GW_OWNER) == Globals.active_win->hMainWnd)
 975             break;
 976     case WM_LBUTTONDOWN:
 977         if (WINHELP_HandleTextMouse(Globals.active_popup, msg, lParam))
 978             return FALSE;
 979         /* fall through */
 980     case WM_LBUTTONUP:
 981     case WM_MBUTTONDOWN:
 982     case WM_RBUTTONDOWN:
 983     case WM_NCLBUTTONDOWN:
 984     case WM_NCMBUTTONDOWN:
 985     case WM_NCRBUTTONDOWN:
 986         popup = Globals.active_popup;
 987         Globals.active_popup = NULL;
 988         WINHELP_ReleaseWindow(popup);
 989         return TRUE;
 990     }
 991     return FALSE;
 992 }
 993
 994 /***********************************************************************
 995  *
 996  *           WINHELP_ButtonWndProc
 997  */
 998 static LRESULT CALLBACK WINHELP_ButtonWndProc(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam)
 999 {
1000     if (WINHELP_CheckPopup(hWnd, msg, wParam, lParam, NULL)) return 0;
1001
1002     if (msg == WM_KEYDOWN)
1003     {
1004         switch (wParam)
1005         {
1006         case VK_UP:
1007         case VK_DOWN:
1008         case VK_PRIOR:
1009         case VK_NEXT:
1010         case VK_ESCAPE:
1011             return SendMessage(GetParent(hWnd), msg, wParam, lParam);
1012         }
1013     }
1014
1015     return CallWindowProc(Globals.button_proc, hWnd, msg, wParam, lParam);
1016 }
1017
1018 /***********************************************************************
1019  *
1020  *           WINHELP_ButtonBoxWndProc
1021  */
1022 static LRESULT CALLBACK WINHELP_ButtonBoxWndProc(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam)
1023 {
1024     WINDOWPOS      *winpos;
1025     WINHELP_WINDOW *win;
1026     WINHELP_BUTTON *button;
1027     SIZE button_size;
1028     INT  x, y;
1029
1030     if (WINHELP_CheckPopup(hWnd, msg, wParam, lParam, NULL)) return 0L;
1031
1032     switch (msg)
1033     {
1034     case WM_WINDOWPOSCHANGING:
1035         winpos = (WINDOWPOS*) lParam;
1036         win = (WINHELP_WINDOW*) GetWindowLongPtr(GetParent(hWnd), 0);
1037
1038         /* Update buttons */
1039         button_size.cx = 0;
1040         button_size.cy = 0;
1041         for (button = win->first_button; button; button = button->next)
1042         {
1043             HDC  hDc;
1044             SIZE textsize;
1045             if (!button->hWnd)
1046             {
1047                 button->hWnd = CreateWindow(STRING_BUTTON, button->lpszName,
1048                                             WS_CHILD | WS_VISIBLE | BS_PUSHBUTTON,
1049                                             0, 0, 0, 0,
1050                                             hWnd, (HMENU) button->wParam,
1051                                             Globals.hInstance, 0);
1052                 if (button->hWnd)
1053                 {
1054                     if (Globals.button_proc == NULL)
1055                     {
1056                         NONCLIENTMETRICSW ncm;
1057                         Globals.button_proc = (WNDPROC) GetWindowLongPtr(button->hWnd, GWLP_WNDPROC);
1058
1059                         ncm.cbSize = sizeof(NONCLIENTMETRICSW);
1060                         SystemParametersInfoW(SPI_GETNONCLIENTMETRICS,
1061                                               sizeof(NONCLIENTMETRICSW), &ncm, 0);
1062                         Globals.hButtonFont = CreateFontIndirectW(&ncm.lfMenuFont);
1063                     }
1064                     SetWindowLongPtr(button->hWnd, GWLP_WNDPROC, (LONG_PTR) WINHELP_ButtonWndProc);
1065                     if (Globals.hButtonFont)
1066                         SendMessage(button->hWnd, WM_SETFONT, (WPARAM)Globals.hButtonFont, TRUE);
1067                 }
1068             }
1069             hDc = GetDC(button->hWnd);
1070             GetTextExtentPoint(hDc, button->lpszName,
1071                                lstrlen(button->lpszName), &textsize);
1072             ReleaseDC(button->hWnd, hDc);
1073
1074             button_size.cx = max(button_size.cx, textsize.cx + BUTTON_CX);
1075             button_size.cy = max(button_size.cy, textsize.cy + BUTTON_CY);
1076         }
1077
1078         x = 0;
1079         y = 0;
1080         for (button = win->first_button; button; button = button->next)
1081         {
1082             SetWindowPos(button->hWnd, HWND_TOP, x, y, button_size.cx, button_size.cy, 0);
1083
1084             if (x + 2 * button_size.cx <= winpos->cx)
1085                 x += button_size.cx;
1086             else
1087                 x = 0, y += button_size.cy;
1088         }
1089         winpos->cy = y + (x ? button_size.cy : 0);
1090         break;
1091
1092     case WM_COMMAND:
1093         SendMessage(GetParent(hWnd), msg, wParam, lParam);
1094         break;
1095
1096     case WM_KEYDOWN:
1097         switch (wParam)
1098         {
1099         case VK_UP:
1100         case VK_DOWN:
1101         case VK_PRIOR:
1102         case VK_NEXT:
1103         case VK_ESCAPE:
1104             return SendMessage(GetParent(hWnd), msg, wParam, lParam);
1105         }
1106         break;
1107     }
1108
1109     return DefWindowProc(hWnd, msg, wParam, lParam);
1110 }
1111
1112 /******************************************************************
1113  *              WINHELP_HistoryWndProc
1114  *
1115  *
1116  */
1117 static LRESULT CALLBACK WINHELP_HistoryWndProc(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam)
1118 {
1119     WINHELP_WINDOW*     win;
1120     PAINTSTRUCT         ps;
1121     HDC                 hDc;
1122     TEXTMETRIC          tm;
1123     unsigned int        i;
1124     RECT                r;
1125
1126     switch (msg)
1127     {
1128     case WM_NCCREATE:
1129         win = (WINHELP_WINDOW*)((LPCREATESTRUCT)lParam)->lpCreateParams;
1130         SetWindowLongPtr(hWnd, 0, (ULONG_PTR)win);
1131         win->hHistoryWnd = hWnd;
1132         break;
1133     case WM_CREATE:
1134         win = (WINHELP_WINDOW*) GetWindowLongPtr(hWnd, 0);
1135         hDc = GetDC(hWnd);
1136         GetTextMetrics(hDc, &tm);
1137         GetWindowRect(hWnd, &r);
1138
1139         r.right = r.left + 30 * tm.tmAveCharWidth;
1140         r.bottom = r.top + (sizeof(Globals.history.set) / sizeof(Globals.history.set[0])) * tm.tmHeight;
1141         AdjustWindowRect(&r, GetWindowLong(hWnd, GWL_STYLE), FALSE);
1142         if (r.left < 0) {r.right -= r.left; r.left = 0;}
1143         if (r.top < 0) {r.bottom -= r.top; r.top = 0;}
1144
1145         MoveWindow(hWnd, r.left, r.top, r.right, r.bottom, TRUE);
1146         ReleaseDC(hWnd, hDc);
1147         break;
1148     case WM_LBUTTONDOWN:
1149         win = (WINHELP_WINDOW*) GetWindowLongPtr(hWnd, 0);
1150         hDc = GetDC(hWnd);
1151         GetTextMetrics(hDc, &tm);
1152         i = HIWORD(lParam) / tm.tmHeight;
1153         if (i < Globals.history.index)
1154             WINHELP_CreateHelpWindow(&Globals.history.set[i], SW_SHOW, TRUE);
1155         ReleaseDC(hWnd, hDc);
1156         break;
1157     case WM_PAINT:
1158         hDc = BeginPaint(hWnd, &ps);
1159         win = (WINHELP_WINDOW*) GetWindowLongPtr(hWnd, 0);
1160         GetTextMetrics(hDc, &tm);
1161
1162         for (i = 0; i < Globals.history.index; i++)
1163         {
1164             if (Globals.history.set[i].page->file == Globals.active_win->page->file)
1165             {
1166                 TextOut(hDc, 0, i * tm.tmHeight,
1167                         Globals.history.set[i].page->lpszTitle,
1168                         strlen(Globals.history.set[i].page->lpszTitle));
1169             }
1170             else
1171             {
1172                 char        buffer[1024];
1173                 const char* ptr1;
1174                 const char* ptr2;
1175                 unsigned    len;
1176
1177                 ptr1 = strrchr(Globals.history.set[i].page->file->lpszPath, '\\');
1178                 if (!ptr1) ptr1 = Globals.history.set[i].page->file->lpszPath;
1179                 else ptr1++;
1180                 ptr2 = strrchr(ptr1, '.');
1181                 len = ptr2 ? ptr2 - ptr1 : strlen(ptr1);
1182                 if (len > sizeof(buffer)) len = sizeof(buffer);
1183                 memcpy(buffer, ptr1, len);
1184                 if (len < sizeof(buffer)) buffer[len++] = ':';
1185                 strncpy(&buffer[len], Globals.history.set[i].page->lpszTitle, sizeof(buffer) - len);
1186                 buffer[sizeof(buffer) - 1] = '\0';
1187                 TextOut(hDc, 0, i * tm.tmHeight, buffer, strlen(buffer));
1188             }
1189         }
1190         EndPaint(hWnd, &ps);
1191         break;
1192     case WM_DESTROY:
1193         win = (WINHELP_WINDOW*) GetWindowLongPtr(hWnd, 0);
1194         if (hWnd == win->hHistoryWnd)
1195             win->hHistoryWnd = 0;
1196         break;
1197     }
1198     return DefWindowProc(hWnd, msg, wParam, lParam);
1199 }
1200
1201 /***********************************************************************
1202  *
1203  *           WINHELP_ShadowWndProc
1204  */
1205 static LRESULT CALLBACK WINHELP_ShadowWndProc(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam)
1206 {
1207     if (WINHELP_CheckPopup(hWnd, msg, wParam, lParam, NULL)) return 0;
1208     return WINHELP_CheckPopup(hWnd, msg, wParam, lParam, NULL) ? 0L : DefWindowProc(hWnd, msg, wParam, lParam);
1209 }
1210
1211 /**************************************************************************
1212  * cb_KWBTree
1213  *
1214  * HLPFILE_BPTreeCallback enumeration function for '|KWBTREE' internal file.
1215  *
1216  */
1217 static void cb_KWBTree(void *p, void **next, void *cookie)
1218 {
1219     HWND hListWnd = cookie;
1220     int count;
1221
1222     WINE_TRACE("Adding '%s' to search list\n", (char *)p);
1223     SendMessage(hListWnd, LB_INSERTSTRING, -1, (LPARAM)p);
1224     count = SendMessage(hListWnd, LB_GETCOUNT, 0, 0);
1225     SendMessage(hListWnd, LB_SETITEMDATA, count-1, (LPARAM)p);
1226     *next = (char*)p + strlen((char*)p) + 7;
1227 }
1228
1229 struct index_data
1230 {
1231     HLPFILE*    hlpfile;
1232     BOOL        jump;
1233     ULONG       offset;
1234 };
1235
1236 /**************************************************************************
1237  * WINHELP_IndexDlgProc
1238  *
1239  */
1240 static INT_PTR CALLBACK WINHELP_IndexDlgProc(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam)
1241 {
1242     static struct index_data* id;
1243     int sel;
1244
1245     switch (msg)
1246     {
1247     case WM_INITDIALOG:
1248         id = (struct index_data*)((PROPSHEETPAGE*)lParam)->lParam;
1249         HLPFILE_BPTreeEnum(id->hlpfile->kwbtree, cb_KWBTree,
1250                            GetDlgItem(hWnd, IDC_INDEXLIST));
1251         id->jump = FALSE;
1252         id->offset = 1;
1253         return TRUE;
1254     case WM_COMMAND:
1255         switch (HIWORD(wParam))
1256         {
1257         case LBN_DBLCLK:
1258             if (LOWORD(wParam) == IDC_INDEXLIST)
1259                 SendMessage(GetParent(hWnd), PSM_PRESSBUTTON, PSBTN_OK, 0);
1260             break;
1261         }
1262         break;
1263     case WM_NOTIFY:
1264         switch (((NMHDR*)lParam)->code)
1265         {
1266         case PSN_APPLY:
1267             sel = SendDlgItemMessage(hWnd, IDC_INDEXLIST, LB_GETCURSEL, 0, 0);
1268             if (sel != LB_ERR)
1269             {
1270                 BYTE *p;
1271                 int count;
1272
1273                 p = (BYTE*)SendDlgItemMessage(hWnd, IDC_INDEXLIST,
1274                                               LB_GETITEMDATA, sel, 0);
1275                 count = *(short*)((char *)p + strlen((char *)p) + 1);
1276                 if (count > 1)
1277                 {
1278                     MessageBox(hWnd, "count > 1 not supported yet", "Error", MB_OK | MB_ICONSTOP);
1279                     SetWindowLongPtr(hWnd, DWLP_MSGRESULT, PSNRET_INVALID);
1280                     return TRUE;
1281                 }
1282                 id->offset = *(ULONG*)((char *)p + strlen((char *)p) + 3);
1283                 id->offset = *(long*)(id->hlpfile->kwdata + id->offset + 9);
1284                 if (id->offset == 0xFFFFFFFF)
1285                 {
1286                     MessageBox(hWnd, "macro keywords not supported yet", "Error", MB_OK | MB_ICONSTOP);
1287                     SetWindowLongPtr(hWnd, DWLP_MSGRESULT, PSNRET_INVALID);
1288                     return TRUE;
1289                 }
1290                 id->jump = TRUE;
1291                 SetWindowLongPtr(hWnd, DWLP_MSGRESULT, PSNRET_NOERROR);
1292             }
1293             return TRUE;
1294         default:
1295             return FALSE;
1296         }
1297         break;
1298     default:
1299         break;
1300     }
1301     return FALSE;
1302 }
1303
1304 /**************************************************************************
1305  * WINHELP_SearchDlgProc
1306  *
1307  */
1308 static INT_PTR CALLBACK WINHELP_SearchDlgProc(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam)
1309 {
1310     static struct index_data* id;
1311
1312     switch (msg)
1313     {
1314     case WM_INITDIALOG:
1315         id = (struct index_data*)((PROPSHEETPAGE*)lParam)->lParam;
1316         return TRUE;
1317     case WM_NOTIFY:
1318         switch (((NMHDR*)lParam)->code)
1319         {
1320         case PSN_APPLY:
1321             SetWindowLongPtr(hWnd, DWLP_MSGRESULT, PSNRET_NOERROR);
1322             return TRUE;
1323         default:
1324             return FALSE;
1325         }
1326         break;
1327     default:
1328         break;
1329     }
1330     return FALSE;
1331 }
1332
1333 /***********************************************************************
1334  *
1335  *           WINHELP_MainWndProc
1336  */
1337 static LRESULT CALLBACK WINHELP_MainWndProc(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam)
1338 {
1339     WINHELP_WINDOW *win;
1340     WINHELP_BUTTON *button;
1341     INT  keyDelta;
1342     HWND hTextWnd;
1343     LRESULT ret;
1344
1345     if (WINHELP_CheckPopup(hWnd, msg, wParam, lParam, &ret)) return ret;
1346
1347     switch (msg)
1348     {
1349     case WM_NCCREATE:
1350         win = (WINHELP_WINDOW*) ((LPCREATESTRUCT) lParam)->lpCreateParams;
1351         SetWindowLongPtr(hWnd, 0, (ULONG_PTR) win);
1352         if (!win->page && Globals.isBook)
1353             PostMessage(hWnd, WM_COMMAND, MNID_FILE_OPEN, 0);
1354         win->hMainWnd = hWnd;
1355         break;
1356
1357     case WM_WINDOWPOSCHANGED:
1358         WINHELP_LayoutMainWindow((WINHELP_WINDOW*) GetWindowLongPtr(hWnd, 0));
1359         break;
1360
1361     case WM_COMMAND:
1362         win = (WINHELP_WINDOW*) GetWindowLongPtr(hWnd, 0);
1363         switch (wParam)
1364         {
1365             /* Menu FILE */
1366         case MNID_FILE_OPEN:    MACRO_FileOpen();       break;
1367         case MNID_FILE_PRINT:   MACRO_Print();          break;
1368         case MNID_FILE_SETUP:   MACRO_PrinterSetup();   break;
1369         case MNID_FILE_EXIT:    MACRO_Exit();           break;
1370
1371             /* Menu EDIT */
1372         case MNID_EDIT_COPYDLG:
1373             SendMessage(GetDlgItem(hWnd, CTL_ID_TEXT), WM_COPY, 0, 0);
1374             break;
1375         case MNID_EDIT_ANNOTATE:MACRO_Annotate();       break;
1376
1377             /* Menu Bookmark */
1378         case MNID_BKMK_DEFINE:  MACRO_BookmarkDefine(); break;
1379
1380             /* Menu Help */
1381         case MNID_HELP_HELPON:  MACRO_HelpOn();         break;
1382         case MNID_HELP_HELPTOP: MACRO_HelpOnTop();      break;
1383         case MNID_HELP_ABOUT:   MACRO_About();          break;
1384         case MNID_HELP_WINE:    ShellAbout(hWnd, "WINE", "Help", 0); break;
1385
1386             /* Context help */
1387         case MNID_CTXT_ANNOTATE:MACRO_Annotate();       break;
1388         case MNID_CTXT_COPY:    MACRO_CopyDialog();     break;
1389         case MNID_CTXT_PRINT:   MACRO_Print();          break;
1390         case MNID_OPTS_HISTORY: MACRO_History();        break;
1391         case MNID_OPTS_FONTS_SMALL:
1392         case MNID_CTXT_FONTS_SMALL:
1393             win = (WINHELP_WINDOW*) GetWindowLongPtr(hWnd, 0);
1394             if (win->font_scale != 0)
1395             {
1396                 win->font_scale = 0;
1397                 WINHELP_SetupText(GetDlgItem(hWnd, CTL_ID_TEXT), win, 0 /* FIXME */);
1398             }
1399             break;
1400         case MNID_OPTS_FONTS_NORMAL:
1401         case MNID_CTXT_FONTS_NORMAL:
1402             win = (WINHELP_WINDOW*) GetWindowLongPtr(hWnd, 0);
1403             if (win->font_scale != 1)
1404             {
1405                 win->font_scale = 1;
1406                 WINHELP_SetupText(GetDlgItem(hWnd, CTL_ID_TEXT), win, 0 /* FIXME */);
1407             }
1408             break;
1409         case MNID_OPTS_FONTS_LARGE:
1410         case MNID_CTXT_FONTS_LARGE:
1411             win = (WINHELP_WINDOW*) GetWindowLongPtr(hWnd, 0);
1412             if (win->font_scale != 2)
1413             {
1414                 win->font_scale = 2;
1415                 WINHELP_SetupText(GetDlgItem(hWnd, CTL_ID_TEXT), win, 0 /* FIXME */);
1416             }
1417             break;
1418         case MNID_OPTS_HELP_DEFAULT:
1419         case MNID_OPTS_HELP_VISIBLE:
1420         case MNID_OPTS_HELP_NONVISIBLE:
1421         case MNID_OPTS_SYSTEM_COLORS:
1422         case MNID_CTXT_HELP_DEFAULT:
1423         case MNID_CTXT_HELP_VISIBLE:
1424         case MNID_CTXT_HELP_NONVISIBLE:
1425         case MNID_CTXT_SYSTEM_COLORS:
1426             /* FIXME: NIY */
1427
1428         default:
1429             /* Buttons */
1430             for (button = win->first_button; button; button = button->next)
1431                 if (wParam == button->wParam) break;
1432             if (button)
1433                 MACRO_ExecuteMacro(win, button->lpszMacro);
1434             else if (!HIWORD(wParam))
1435                 MessageBox(0, MAKEINTRESOURCE(STID_NOT_IMPLEMENTED),
1436                            MAKEINTRESOURCE(STID_WHERROR), MB_OK);
1437             break;
1438         }
1439         break;
1440 /* EPP     case WM_DESTROY: */
1441 /* EPP         if (Globals.hPopupWnd) DestroyWindow(Globals.hPopupWnd); */
1442 /* EPP         break; */
1443     case WM_COPYDATA:
1444         return WINHELP_HandleCommand((HWND)wParam, lParam);
1445
1446     case WM_CHAR:
1447         if (wParam == 3)
1448         {
1449             SendMessage(GetDlgItem(hWnd, CTL_ID_TEXT), WM_COPY, 0, 0);
1450             return 0;
1451         }
1452         break;
1453
1454     case WM_KEYDOWN:
1455         keyDelta = 0;
1456         win = (WINHELP_WINDOW*) GetWindowLongPtr(hWnd, 0);
1457         hTextWnd = GetDlgItem(win->hMainWnd, CTL_ID_TEXT);
1458
1459         switch (wParam)
1460         {
1461         case VK_UP:
1462             SendMessage(hTextWnd, EM_SCROLL, SB_LINEUP, 0);
1463             return 0;
1464         case VK_DOWN:
1465             SendMessage(hTextWnd, EM_SCROLL, SB_LINEDOWN, 0);
1466             return 0;
1467         case VK_PRIOR:
1468             SendMessage(hTextWnd, EM_SCROLL, SB_PAGEUP, 0);
1469             return 0;
1470         case VK_NEXT:
1471             SendMessage(hTextWnd, EM_SCROLL, SB_PAGEDOWN, 0);
1472             return 0;
1473         case VK_ESCAPE:
1474             MACRO_Exit();
1475             return 0;
1476         }
1477         break;
1478
1479     case WM_NOTIFY:
1480         if (wParam == CTL_ID_TEXT)
1481         {
1482             RECT        rc;
1483
1484             switch (((NMHDR*)lParam)->code)
1485             {
1486             case EN_MSGFILTER:
1487                 {
1488                     const MSGFILTER*    msgf = (const MSGFILTER*)lParam;
1489                     switch (msgf->msg)
1490                     {
1491                     case WM_KEYUP:
1492                         if (msgf->wParam == VK_ESCAPE)
1493                             WINHELP_ReleaseWindow((WINHELP_WINDOW*)GetWindowLongPtr(hWnd, 0));
1494                         break;
1495                     case WM_RBUTTONDOWN:
1496                     {
1497                         HMENU       hMenu;
1498                         POINT       pt;
1499
1500                         win = (WINHELP_WINDOW*) GetWindowLongPtr(hWnd, 0);
1501                         hMenu = LoadMenu(Globals.hInstance, (LPSTR)CONTEXT_MENU);
1502                         switch (win->font_scale)
1503                         {
1504                         case 0:
1505                             CheckMenuItem(hMenu, MNID_CTXT_FONTS_SMALL,
1506                                           MF_BYCOMMAND|MF_CHECKED);
1507                             break;
1508                         default:
1509                             WINE_FIXME("Unsupported %d\n", win->font_scale);
1510                         case 1:
1511                             CheckMenuItem(hMenu, MNID_CTXT_FONTS_NORMAL,
1512                                           MF_BYCOMMAND|MF_CHECKED);
1513                             break;
1514                         case 2:
1515                             CheckMenuItem(hMenu, MNID_CTXT_FONTS_LARGE,
1516                                           MF_BYCOMMAND|MF_CHECKED);
1517                             break;
1518                         }
1519                         pt.x = (int)(short)LOWORD(msgf->lParam);
1520                         pt.y = (int)(short)HIWORD(msgf->lParam);
1521                         ClientToScreen(msgf->nmhdr.hwndFrom, &pt);
1522                         TrackPopupMenu(GetSubMenu(hMenu, 0), TPM_LEFTALIGN|TPM_TOPALIGN,
1523                                        pt.x, pt.y, 0, hWnd, NULL);
1524                         DestroyMenu(hMenu);
1525                     }
1526                     break;
1527                     default:
1528                         return WINHELP_HandleTextMouse((WINHELP_WINDOW*)GetWindowLongPtr(hWnd, 0),
1529                                                        msgf->msg, msgf->lParam);
1530                     }
1531                 }
1532                 break;
1533
1534             case EN_REQUESTRESIZE:
1535                 rc = ((REQRESIZE*)lParam)->rc;
1536                 win = (WINHELP_WINDOW*) GetWindowLongPtr(hWnd, 0);
1537                 AdjustWindowRect(&rc, GetWindowLong(win->hMainWnd, GWL_STYLE),
1538                                  FALSE);
1539                 SetWindowPos(win->hMainWnd, HWND_TOP, 0, 0,
1540                              rc.right - rc.left, rc.bottom - rc.top,
1541                              SWP_NOMOVE | SWP_NOZORDER);
1542                 WINHELP_LayoutMainWindow(win);
1543                 break;
1544             }
1545         }
1546         break;
1547
1548     case WM_INITMENUPOPUP:
1549         win = (WINHELP_WINDOW*) GetWindowLongPtr(hWnd, 0);
1550         CheckMenuItem((HMENU)wParam, MNID_OPTS_FONTS_SMALL,
1551                       MF_BYCOMMAND | (win->font_scale == 0) ? MF_CHECKED : 0);
1552         CheckMenuItem((HMENU)wParam, MNID_OPTS_FONTS_NORMAL,
1553                       MF_BYCOMMAND | (win->font_scale == 1) ? MF_CHECKED : 0);
1554         CheckMenuItem((HMENU)wParam, MNID_OPTS_FONTS_LARGE,
1555                       MF_BYCOMMAND | (win->font_scale == 2) ? MF_CHECKED : 0);
1556         break;
1557     case WM_DESTROY:
1558         win = (WINHELP_WINDOW*) GetWindowLongPtr(hWnd, 0);
1559         WINHELP_DeleteWindow(win);
1560         break;
1561     }
1562     return DefWindowProc(hWnd, msg, wParam, lParam);
1563 }
1564
1565 /**************************************************************************
1566  * WINHELP_CreateIndexWindow
1567  *
1568  * Displays a dialog with keywords of current help file.
1569  *
1570  */
1571 BOOL WINHELP_CreateIndexWindow(BOOL is_search)
1572 {
1573     HPROPSHEETPAGE      psPage[3];
1574     PROPSHEETPAGE       psp;
1575     PROPSHEETHEADER     psHead;
1576     struct index_data   id;
1577     char                buf[256];
1578
1579     if (Globals.active_win && Globals.active_win->page && Globals.active_win->page->file)
1580         id.hlpfile = Globals.active_win->page->file;
1581     else
1582         return FALSE;
1583
1584     if (id.hlpfile->kwbtree == NULL)
1585     {
1586         WINE_TRACE("No index provided\n");
1587         return FALSE;
1588     }
1589
1590     InitCommonControls();
1591
1592     id.jump = FALSE;
1593     memset(&psp, 0, sizeof(psp));
1594     psp.dwSize = sizeof(psp);
1595     psp.dwFlags = 0;
1596     psp.hInstance = Globals.hInstance;
1597
1598     psp.u.pszTemplate = MAKEINTRESOURCE(IDD_INDEX);
1599     psp.lParam = (LPARAM)&id;
1600     psp.pfnDlgProc = WINHELP_IndexDlgProc;
1601     psPage[0] = CreatePropertySheetPage(&psp);
1602
1603     psp.u.pszTemplate = MAKEINTRESOURCE(IDD_SEARCH);
1604     psp.lParam = (LPARAM)&id;
1605     psp.pfnDlgProc = WINHELP_SearchDlgProc;
1606     psPage[1] = CreatePropertySheetPage(&psp);
1607
1608     memset(&psHead, 0, sizeof(psHead));
1609     psHead.dwSize = sizeof(psHead);
1610
1611     LoadString(Globals.hInstance, STID_PSH_INDEX, buf, sizeof(buf));
1612     strcat(buf, Globals.active_win->info->caption);
1613
1614     psHead.pszCaption = buf;
1615     psHead.nPages = 2;
1616     psHead.u2.nStartPage = is_search ? 1 : 0;
1617     psHead.hwndParent = Globals.active_win->hMainWnd;
1618     psHead.u3.phpage = psPage;
1619     psHead.dwFlags = PSH_NOAPPLYNOW;
1620
1621     PropertySheet(&psHead);
1622     if (id.jump)
1623     {
1624         WINE_TRACE("got %d as an offset\n", id.offset);
1625         WINHELP_OpenHelpWindow(HLPFILE_PageByOffset, id.hlpfile, id.offset,
1626                                Globals.active_win->info, SW_NORMAL);
1627     }
1628     return TRUE;
1629 }
1630
1631 /***********************************************************************
1632  *
1633  *           RegisterWinClasses
1634  */
1635 static BOOL WINHELP_RegisterWinClasses(void)
1636 {
1637     WNDCLASSEX class_main, class_button_box, class_shadow, class_history;
1638
1639     class_main.cbSize              = sizeof(class_main);
1640     class_main.style               = CS_HREDRAW | CS_VREDRAW;
1641     class_main.lpfnWndProc         = WINHELP_MainWndProc;
1642     class_main.cbClsExtra          = 0;
1643     class_main.cbWndExtra          = sizeof(WINHELP_WINDOW *);
1644     class_main.hInstance           = Globals.hInstance;
1645     class_main.hIcon               = LoadIcon(Globals.hInstance, MAKEINTRESOURCE(IDI_WINHELP));
1646     class_main.hCursor             = LoadCursor(0, IDC_ARROW);
1647     class_main.hbrBackground       = (HBRUSH)(COLOR_WINDOW+1);
1648     class_main.lpszMenuName        = 0;
1649     class_main.lpszClassName       = MAIN_WIN_CLASS_NAME;
1650     class_main.hIconSm             = LoadImage(Globals.hInstance, MAKEINTRESOURCE(IDI_WINHELP), IMAGE_ICON,
1651                                                GetSystemMetrics(SM_CXSMICON), GetSystemMetrics(SM_CYSMICON),
1652                                                LR_SHARED);
1653
1654     class_button_box               = class_main;
1655     class_button_box.lpfnWndProc   = WINHELP_ButtonBoxWndProc;
1656     class_button_box.cbWndExtra    = 0;
1657     class_button_box.hbrBackground = (HBRUSH)(COLOR_BTNFACE+1);
1658     class_button_box.lpszClassName = BUTTON_BOX_WIN_CLASS_NAME;
1659
1660     class_shadow                   = class_main;
1661     class_shadow.lpfnWndProc       = WINHELP_ShadowWndProc;
1662     class_shadow.cbWndExtra        = 0;
1663     class_shadow.hbrBackground     = (HBRUSH)(COLOR_3DDKSHADOW+1);
1664     class_shadow.lpszClassName     = SHADOW_WIN_CLASS_NAME;
1665
1666     class_history                  = class_main;
1667     class_history.lpfnWndProc      = WINHELP_HistoryWndProc;
1668     class_history.lpszClassName    = HISTORY_WIN_CLASS_NAME;
1669
1670     return (RegisterClassEx(&class_main) &&
1671             RegisterClassEx(&class_button_box) &&
1672             RegisterClassEx(&class_shadow) &&
1673             RegisterClassEx(&class_history));
1674 }
1675
1676 /***********************************************************************
1677  *
1678  *           WinMain
1679  */
1680 int PASCAL WinMain(HINSTANCE hInstance, HINSTANCE prev, LPSTR cmdline, int show)
1681 {
1682     MSG                 msg;
1683     LONG                lHash = 0;
1684     HLPFILE*            hlpfile;
1685     static CHAR         default_wndname[] = "main";
1686     LPSTR               wndname = default_wndname;
1687     WINHELP_DLL*        dll;
1688
1689     Globals.hInstance = hInstance;
1690
1691     if (LoadLibrary("riched20.dll") == NULL)
1692         return MessageBox(0, MAKEINTRESOURCE(STID_NO_RICHEDIT),
1693                           MAKEINTRESOURCE(STID_WHERROR), MB_OK);
1694
1695     /* Get options */
1696     while (*cmdline && (*cmdline == ' ' || *cmdline == '-'))
1697     {
1698         CHAR   option;
1699         LPCSTR topic_id;
1700         if (*cmdline++ == ' ') continue;
1701
1702         option = *cmdline;
1703         if (option) cmdline++;
1704         while (*cmdline && *cmdline == ' ') cmdline++;
1705         switch (option)
1706         {
1707         case 'i':
1708         case 'I':
1709             topic_id = cmdline;
1710             while (*cmdline && *cmdline != ' ') cmdline++;
1711             if (*cmdline) *cmdline++ = '\0';
1712             lHash = HLPFILE_Hash(topic_id);
1713             break;
1714
1715         case '3':
1716         case '4':
1717             Globals.wVersion = option - '0';
1718             break;
1719
1720         case 'x':
1721             show = SW_HIDE;
1722             Globals.isBook = FALSE;
1723             break;
1724
1725         default:
1726             WINE_FIXME("Unsupported cmd line: %s\n", cmdline);
1727             break;
1728         }
1729     }
1730
1731     /* Create primary window */
1732     if (!WINHELP_RegisterWinClasses())
1733     {
1734         WINE_FIXME("Couldn't register classes\n");
1735         return 0;
1736     }
1737
1738     if (*cmdline)
1739     {
1740         char*   ptr;
1741         if ((*cmdline == '"') && (ptr = strchr(cmdline+1, '"')))
1742         {
1743             cmdline++;
1744             *ptr = '\0';
1745         }
1746         if ((ptr = strchr(cmdline, '>')))
1747         {
1748             *ptr = '\0';
1749             wndname = ptr + 1;
1750         }
1751         hlpfile = WINHELP_LookupHelpFile(cmdline);
1752         if (!hlpfile) return 0;
1753     }
1754     else hlpfile = NULL;
1755     WINHELP_OpenHelpWindow(HLPFILE_PageByHash, hlpfile, lHash,
1756                            WINHELP_GetWindowInfo(hlpfile, wndname), show);
1757
1758     /* Message loop */
1759     while ((Globals.win_list || Globals.active_popup) && GetMessage(&msg, 0, 0, 0))
1760     {
1761         TranslateMessage(&msg);
1762         DispatchMessage(&msg);
1763     }
1764     for (dll = Globals.dlls; dll; dll = dll->next)
1765     {
1766         if (dll->class & DC_INITTERM) dll->handler(DW_TERM, 0, 0);
1767     }
1768     return 0;
1769 }