git.oblomov.eu Git - wine/blob - dlls/uxtheme/system.c

   1 /*
   2  * Win32 5.1 Theme system
   3  *
   4  * Copyright (C) 2003 Kevin Koltzau
   5  *
   6  * This library is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU Lesser General Public
   8  * License as published by the Free Software Foundation; either
   9  * version 2.1 of the License, or (at your option) any later version.
  10  *
  11  * This library is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * Lesser General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU Lesser General Public
  17  * License along with this library; if not, write to the Free Software
  18  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  19  */
  20
  21 #include "config.h"
  22
  23 #include <stdarg.h>
  24 #include <stdio.h>
  25
  26 #include "windef.h"
  27 #include "winbase.h"
  28 #include "wingdi.h"
  29 #include "winuser.h"
  30 #include "winreg.h"
  31 #include "uxtheme.h"
  32 #include "tmschema.h"
  33
  34 #include "uxthemedll.h"
  35 #include "msstyles.h"
  36
  37 #include "wine/debug.h"
  38
  39 WINE_DEFAULT_DEBUG_CHANNEL(uxtheme);
  40
  41 /***********************************************************************
  42  * Defines and global variables
  43  */
  44
  45 static const WCHAR szThemeManager[] = {
  46     'S','o','f','t','w','a','r','e','\\',
  47     'M','i','c','r','o','s','o','f','t','\\',
  48     'W','i','n','d','o','w','s','\\',
  49     'C','u','r','r','e','n','t','V','e','r','s','i','o','n','\\',
  50     'T','h','e','m','e','M','a','n','a','g','e','r','\0'
  51 };
  52 static const WCHAR szThemeActive[] = {'T','h','e','m','e','A','c','t','i','v','e','\0'};
  53 static const WCHAR szSizeName[] = {'S','i','z','e','N','a','m','e','\0'};
  54 static const WCHAR szColorName[] = {'C','o','l','o','r','N','a','m','e','\0'};
  55 static const WCHAR szDllName[] = {'D','l','l','N','a','m','e','\0'};
  56
  57 static const WCHAR szIniDocumentation[] = {'d','o','c','u','m','e','n','t','a','t','i','o','n','\0'};
  58
  59 HINSTANCE hDllInst;
  60 ATOM atDialogThemeEnabled;
  61
  62 static DWORD dwThemeAppProperties = STAP_ALLOW_NONCLIENT | STAP_ALLOW_CONTROLS;
  63 static ATOM atWindowTheme;
  64 static ATOM atSubAppName;
  65 static ATOM atSubIdList;
  66
  67 static BOOL bThemeActive = FALSE;
  68 static WCHAR szCurrentTheme[MAX_PATH];
  69 static WCHAR szCurrentColor[64];
  70 static WCHAR szCurrentSize[64];
  71
  72 /***********************************************************************/
  73
  74 static BOOL CALLBACK UXTHEME_broadcast_msg_enumchild (HWND hWnd, LPARAM msg)
  75 {
  76     PostMessageW(hWnd, msg, 0, 0);
  77     return TRUE;
  78 }
  79
  80 /* Broadcast a message to *all* windows, including children */
  81 static BOOL CALLBACK UXTHEME_broadcast_msg (HWND hWnd, LPARAM msg)
  82 {
  83     if (hWnd == NULL)
  84     {
  85         EnumWindows (UXTHEME_broadcast_msg, msg);
  86     }
  87     else
  88     {
  89         PostMessageW(hWnd, msg, 0, 0);
  90         EnumChildWindows (hWnd, UXTHEME_broadcast_msg_enumchild, msg);
  91     }
  92     return TRUE;
  93 }
  94
  95 /* At the end of the day this is a subset of what SHRegGetPath() does - copied
  96  * here to avoid linking against shlwapi. */
  97 static DWORD query_reg_path (HKEY hKey, LPCWSTR lpszValue,
  98                              LPVOID pvData)
  99 {
 100   DWORD dwRet, dwType, dwUnExpDataLen = MAX_PATH, dwExpDataLen;
 101
 102   TRACE("(hkey=%p,%s,%p)\n", hKey, debugstr_w(lpszValue),
 103         pvData);
 104
 105   dwRet = RegQueryValueExW(hKey, lpszValue, 0, &dwType, pvData, &dwUnExpDataLen);
 106   if (dwRet!=ERROR_SUCCESS && dwRet!=ERROR_MORE_DATA)
 107       return dwRet;
 108
 109   if (dwType == REG_EXPAND_SZ)
 110   {
 111     DWORD nBytesToAlloc;
 112
 113     /* Expand type REG_EXPAND_SZ into REG_SZ */
 114     LPWSTR szData;
 115
 116     /* If the caller didn't supply a buffer or the buffer is too small we have
 117      * to allocate our own
 118      */
 119     if (dwRet == ERROR_MORE_DATA)
 120     {
 121       WCHAR cNull = '\0';
 122       nBytesToAlloc = dwUnExpDataLen;
 123
 124       szData = (LPWSTR) LocalAlloc(LMEM_ZEROINIT, nBytesToAlloc);
 125       RegQueryValueExW (hKey, lpszValue, 0, NULL, (LPBYTE)szData, &nBytesToAlloc);
 126       dwExpDataLen = ExpandEnvironmentStringsW(szData, &cNull, 1);
 127       dwUnExpDataLen = max(nBytesToAlloc, dwExpDataLen);
 128       LocalFree((HLOCAL) szData);
 129     }
 130     else
 131     {
 132       nBytesToAlloc = (lstrlenW(pvData) + 1) * sizeof(WCHAR);
 133       szData = (LPWSTR) LocalAlloc(LMEM_ZEROINIT, nBytesToAlloc );
 134       lstrcpyW(szData, pvData);
 135       dwExpDataLen = ExpandEnvironmentStringsW(szData, pvData, MAX_PATH );
 136       if (dwExpDataLen > MAX_PATH) dwRet = ERROR_MORE_DATA;
 137       dwUnExpDataLen = max(nBytesToAlloc, dwExpDataLen);
 138       LocalFree((HLOCAL) szData);
 139     }
 140   }
 141
 142   RegCloseKey(hKey);
 143   return dwRet;
 144 }
 145
 146 /***********************************************************************
 147  *      UXTHEME_LoadTheme
 148  *
 149  * Set the current active theme from the registry
 150  */
 151 static void UXTHEME_LoadTheme(void)
 152 {
 153     HKEY hKey;
 154     DWORD buffsize;
 155     HRESULT hr;
 156     WCHAR tmp[10];
 157     PTHEME_FILE pt;
 158
 159     /* Get current theme configuration */
 160     if(!RegOpenKeyW(HKEY_CURRENT_USER, szThemeManager, &hKey)) {
 161         TRACE("Loading theme config\n");
 162         buffsize = sizeof(tmp)/sizeof(tmp[0]);
 163         if(!RegQueryValueExW(hKey, szThemeActive, NULL, NULL, (LPBYTE)tmp, &buffsize)) {
 164             bThemeActive = (tmp[0] != '0');
 165         }
 166         else {
 167             bThemeActive = FALSE;
 168             TRACE("Failed to get ThemeActive: %ld\n", GetLastError());
 169         }
 170         buffsize = sizeof(szCurrentColor)/sizeof(szCurrentColor[0]);
 171         if(RegQueryValueExW(hKey, szColorName, NULL, NULL, (LPBYTE)szCurrentColor, &buffsize))
 172             szCurrentColor[0] = '\0';
 173         buffsize = sizeof(szCurrentSize)/sizeof(szCurrentSize[0]);
 174         if(RegQueryValueExW(hKey, szSizeName, NULL, NULL, (LPBYTE)szCurrentSize, &buffsize))
 175             szCurrentSize[0] = '\0';
 176         if (query_reg_path (hKey, szDllName, szCurrentTheme))
 177             szCurrentTheme[0] = '\0';
 178         RegCloseKey(hKey);
 179     }
 180     else
 181         TRACE("Failed to open theme registry key\n");
 182
 183     if(bThemeActive) {
 184         /* Make sure the theme requested is actually valid */
 185         hr = MSSTYLES_OpenThemeFile(szCurrentTheme,
 186                                     szCurrentColor[0]?szCurrentColor:NULL,
 187                                     szCurrentSize[0]?szCurrentSize:NULL,
 188                                     &pt);
 189         if(FAILED(hr)) {
 190             bThemeActive = FALSE;
 191             szCurrentTheme[0] = '\0';
 192             szCurrentColor[0] = '\0';
 193             szCurrentSize[0] = '\0';
 194         }
 195         else {
 196             /* Make sure the global color & size match the theme */
 197             lstrcpynW(szCurrentColor, pt->pszSelectedColor, sizeof(szCurrentColor)/sizeof(szCurrentColor[0]));
 198             lstrcpynW(szCurrentSize, pt->pszSelectedSize, sizeof(szCurrentSize)/sizeof(szCurrentSize[0]));
 199
 200             MSSTYLES_SetActiveTheme(pt, FALSE);
 201             TRACE("Theme active: %s %s %s\n", debugstr_w(szCurrentTheme),
 202                 debugstr_w(szCurrentColor), debugstr_w(szCurrentSize));
 203             MSSTYLES_CloseThemeFile(pt);
 204         }
 205     }
 206     if(!bThemeActive) {
 207         MSSTYLES_SetActiveTheme(NULL, FALSE);
 208         TRACE("Themeing not active\n");
 209     }
 210 }
 211
 212 /***********************************************************************/
 213
 214 static const char * const SysColorsNames[] =
 215 {
 216     "Scrollbar",                /* COLOR_SCROLLBAR */
 217     "Background",               /* COLOR_BACKGROUND */
 218     "ActiveTitle",              /* COLOR_ACTIVECAPTION */
 219     "InactiveTitle",            /* COLOR_INACTIVECAPTION */
 220     "Menu",                     /* COLOR_MENU */
 221     "Window",                   /* COLOR_WINDOW */
 222     "WindowFrame",              /* COLOR_WINDOWFRAME */
 223     "MenuText",                 /* COLOR_MENUTEXT */
 224     "WindowText",               /* COLOR_WINDOWTEXT */
 225     "TitleText",                /* COLOR_CAPTIONTEXT */
 226     "ActiveBorder",             /* COLOR_ACTIVEBORDER */
 227     "InactiveBorder",           /* COLOR_INACTIVEBORDER */
 228     "AppWorkSpace",             /* COLOR_APPWORKSPACE */
 229     "Hilight",                  /* COLOR_HIGHLIGHT */
 230     "HilightText",              /* COLOR_HIGHLIGHTTEXT */
 231     "ButtonFace",               /* COLOR_BTNFACE */
 232     "ButtonShadow",             /* COLOR_BTNSHADOW */
 233     "GrayText",                 /* COLOR_GRAYTEXT */
 234     "ButtonText",               /* COLOR_BTNTEXT */
 235     "InactiveTitleText",        /* COLOR_INACTIVECAPTIONTEXT */
 236     "ButtonHilight",            /* COLOR_BTNHIGHLIGHT */
 237     "ButtonDkShadow",           /* COLOR_3DDKSHADOW */
 238     "ButtonLight",              /* COLOR_3DLIGHT */
 239     "InfoText",                 /* COLOR_INFOTEXT */
 240     "InfoWindow",               /* COLOR_INFOBK */
 241     "ButtonAlternateFace",      /* COLOR_ALTERNATEBTNFACE */
 242     "HotTrackingColor",         /* COLOR_HOTLIGHT */
 243     "GradientActiveTitle",      /* COLOR_GRADIENTACTIVECAPTION */
 244     "GradientInactiveTitle",    /* COLOR_GRADIENTINACTIVECAPTION */
 245     "MenuHilight",              /* COLOR_MENUHILIGHT */
 246     "MenuBar",                  /* COLOR_MENUBAR */
 247 };
 248 static const WCHAR strColorKey[] =
 249     { 'C','o','n','t','r','o','l',' ','P','a','n','e','l','\\',
 250       'C','o','l','o','r','s',0 };
 251 static const WCHAR keyFlatMenus[] = { 'F','l','a','t','M','e','n','u', 0};
 252 static const WCHAR keyGradientCaption[] = { 'G','r','a','d','i','e','n','t',
 253                                             'C','a','p','t','i','o','n', 0 };
 254 static const WCHAR keyNonClientMetrics[] = { 'N','o','n','C','l','i','e','n','t',
 255                                              'M','e','t','r','i','c','s',0 };
 256 static const WCHAR keyIconTitleFont[] = { 'I','c','o','n','T','i','t','l','e',
 257                                           'F','o','n','t',0 };
 258
 259 static const struct BackupSysParam
 260 {
 261     int spiGet, spiSet;
 262     const WCHAR* keyName;
 263 } backupSysParams[] =
 264 {
 265     {SPI_GETFLATMENU, SPI_SETFLATMENU, keyFlatMenus},
 266     {SPI_GETGRADIENTCAPTIONS, SPI_SETGRADIENTCAPTIONS, keyGradientCaption},
 267     {-1, -1, 0}
 268 };
 269
 270 #define NUM_SYS_COLORS     (COLOR_MENUBAR+1)
 271
 272 static void save_sys_colors (HKEY baseKey)
 273 {
 274     char colorStr[13];
 275     HKEY hKey;
 276     int i;
 277
 278     if (RegCreateKeyExW( baseKey, strColorKey,
 279                          0, 0, 0, KEY_ALL_ACCESS,
 280                          0, &hKey, 0 ) == ERROR_SUCCESS)
 281     {
 282         for (i = 0; i < NUM_SYS_COLORS; i++)
 283         {
 284             COLORREF col = GetSysColor (i);
 285
 286             sprintf (colorStr, "%d %d %d",
 287                 GetRValue (col), GetGValue (col), GetBValue (col));
 288
 289             RegSetValueExA (hKey, SysColorsNames[i], 0, REG_SZ,
 290                 (BYTE*)colorStr, strlen (colorStr)+1);
 291         }
 292         RegCloseKey (hKey);
 293     }
 294 }
 295
 296 /* Before activating a theme, query current system colors, certain settings
 297  * and backup them in the registry, so they can be restored when the theme
 298  * is deactivated */
 299 static void UXTHEME_BackupSystemMetrics(void)
 300 {
 301     HKEY hKey;
 302     const struct BackupSysParam* bsp = backupSysParams;
 303
 304     if (RegCreateKeyExW( HKEY_CURRENT_USER, szThemeManager,
 305                          0, 0, 0, KEY_ALL_ACCESS,
 306                          0, &hKey, 0) == ERROR_SUCCESS)
 307     {
 308         NONCLIENTMETRICSW ncm;
 309         LOGFONTW iconTitleFont;
 310
 311         /* back up colors */
 312         save_sys_colors (hKey);
 313
 314         /* back up "other" settings */
 315         while (bsp->spiGet >= 0)
 316         {
 317             DWORD value;
 318
 319             SystemParametersInfoW (bsp->spiGet, 0, &value, 0);
 320             RegSetValueExW (hKey, bsp->keyName, 0, REG_DWORD,
 321                 (LPBYTE)&value, sizeof (value));
 322
 323             bsp++;
 324         }
 325
 326         /* back up non-client metrics */
 327         memset (&ncm, 0, sizeof (ncm));
 328         ncm.cbSize = sizeof (ncm);
 329         SystemParametersInfoW (SPI_GETNONCLIENTMETRICS, sizeof (ncm), &ncm, 0);
 330         RegSetValueExW (hKey, keyNonClientMetrics, 0, REG_BINARY, (LPBYTE)&ncm,
 331             sizeof (ncm));
 332         memset (&iconTitleFont, 0, sizeof (iconTitleFont));
 333         SystemParametersInfoW (SPI_GETICONTITLELOGFONT, sizeof (iconTitleFont),
 334             &iconTitleFont, 0);
 335         RegSetValueExW (hKey, keyIconTitleFont, 0, REG_BINARY,
 336             (LPBYTE)&iconTitleFont, sizeof (iconTitleFont));
 337
 338         RegCloseKey (hKey);
 339     }
 340 }
 341
 342 /* Read back old settings after a theme was deactivated */
 343 static void UXTHEME_RestoreSystemMetrics(void)
 344 {
 345     HKEY hKey;
 346     const struct BackupSysParam* bsp = backupSysParams;
 347
 348     if (RegOpenKeyExW (HKEY_CURRENT_USER, szThemeManager,
 349                        0, KEY_QUERY_VALUE, &hKey) == ERROR_SUCCESS)
 350     {
 351         HKEY colorKey;
 352
 353         /* read backed-up colors */
 354         if (RegOpenKeyExW (hKey, strColorKey,
 355                            0, KEY_QUERY_VALUE, &colorKey) == ERROR_SUCCESS)
 356         {
 357             int i;
 358             COLORREF sysCols[NUM_SYS_COLORS];
 359             int sysColsIndices[NUM_SYS_COLORS];
 360             int sysColCount = 0;
 361
 362             for (i = 0; i < NUM_SYS_COLORS; i++)
 363             {
 364                 DWORD type;
 365                 char colorStr[13];
 366                 DWORD count = sizeof(colorStr);
 367
 368                 if (RegQueryValueExA (colorKey, SysColorsNames[i], 0,
 369                     &type, (LPBYTE) colorStr, &count) == ERROR_SUCCESS)
 370                 {
 371                     int r, g, b;
 372                     if (sscanf (colorStr, "%d %d %d", &r, &g, &b) == 3)
 373                     {
 374                         sysColsIndices[sysColCount] = i;
 375                         sysCols[sysColCount] = RGB(r, g, b);
 376                         sysColCount++;
 377                     }
 378                 }
 379             }
 380             RegCloseKey (colorKey);
 381
 382             SetSysColors (sysColCount, sysColsIndices, sysCols);
 383         }
 384
 385         /* read backed-up other settings */
 386         while (bsp->spiGet >= 0)
 387         {
 388             DWORD value;
 389             DWORD count = sizeof(value);
 390             DWORD type;
 391
 392             if (RegQueryValueExW (hKey, bsp->keyName, 0,
 393                 &type, (LPBYTE)&value, &count) == ERROR_SUCCESS)
 394             {
 395                 SystemParametersInfoW (bsp->spiSet, 0, (LPVOID)value,
 396                     SPIF_UPDATEINIFILE);
 397             }
 398
 399             bsp++;
 400         }
 401
 402         /* read backed-up non-client metrics */
 403         {
 404             NONCLIENTMETRICSW ncm;
 405             LOGFONTW iconTitleFont;
 406             DWORD count = sizeof(ncm);
 407             DWORD type;
 408
 409             if (RegQueryValueExW (hKey, keyNonClientMetrics, 0,
 410                 &type, (LPBYTE)&ncm, &count) == ERROR_SUCCESS)
 411             {
 412                 SystemParametersInfoW (SPI_SETNONCLIENTMETRICS,
 413                     count, (LPVOID)&ncm, SPIF_UPDATEINIFILE);
 414             }
 415
 416             count = sizeof(iconTitleFont);
 417
 418             if (RegQueryValueExW (hKey, keyIconTitleFont, 0,
 419                 &type, (LPBYTE)&iconTitleFont, &count) == ERROR_SUCCESS)
 420             {
 421                 SystemParametersInfoW (SPI_SETICONTITLELOGFONT,
 422                     count, (LPVOID)&iconTitleFont, SPIF_UPDATEINIFILE);
 423             }
 424         }
 425
 426         RegCloseKey (hKey);
 427     }
 428 }
 429
 430 /* Make system settings persistent, so they're in effect even w/o uxtheme
 431  * loaded.
 432  * For efficiency reasons, only the last SystemParametersInfoW sets
 433  * SPIF_SENDWININICHANGE */
 434 static void UXTHEME_SaveSystemMetrics(void)
 435 {
 436     const struct BackupSysParam* bsp = backupSysParams;
 437     NONCLIENTMETRICSW ncm;
 438     LOGFONTW iconTitleFont;
 439
 440     save_sys_colors (HKEY_CURRENT_USER);
 441
 442     while (bsp->spiGet >= 0)
 443     {
 444         DWORD value;
 445
 446         SystemParametersInfoW (bsp->spiGet, 0, &value, 0);
 447         SystemParametersInfoW (bsp->spiSet, 0, (LPVOID)value,
 448             SPIF_UPDATEINIFILE);
 449
 450         bsp++;
 451     }
 452
 453     memset (&ncm, 0, sizeof (ncm));
 454     ncm.cbSize = sizeof (ncm);
 455     SystemParametersInfoW (SPI_GETNONCLIENTMETRICS,
 456         sizeof (ncm), (LPVOID)&ncm, 0);
 457     SystemParametersInfoW (SPI_SETNONCLIENTMETRICS,
 458         sizeof (ncm), (LPVOID)&ncm, SPIF_UPDATEINIFILE);
 459
 460     memset (&iconTitleFont, 0, sizeof (iconTitleFont));
 461     SystemParametersInfoW (SPI_GETICONTITLELOGFONT,
 462         sizeof (iconTitleFont), (LPVOID)&iconTitleFont, 0);
 463     SystemParametersInfoW (SPI_SETICONTITLELOGFONT,
 464         sizeof (iconTitleFont), (LPVOID)&iconTitleFont,
 465         SPIF_UPDATEINIFILE | SPIF_SENDCHANGE);
 466 }
 467
 468 /***********************************************************************
 469  *      UXTHEME_SetActiveTheme
 470  *
 471  * Change the current active theme
 472  */
 473 HRESULT UXTHEME_SetActiveTheme(PTHEME_FILE tf)
 474 {
 475     HKEY hKey;
 476     WCHAR tmp[2];
 477     HRESULT hr;
 478
 479     if(tf && !bThemeActive) UXTHEME_BackupSystemMetrics();
 480     hr = MSSTYLES_SetActiveTheme(tf, TRUE);
 481     if(FAILED(hr))
 482         return hr;
 483     if(tf) {
 484         bThemeActive = TRUE;
 485         lstrcpynW(szCurrentTheme, tf->szThemeFile, sizeof(szCurrentTheme)/sizeof(szCurrentTheme[0]));
 486         lstrcpynW(szCurrentColor, tf->pszSelectedColor, sizeof(szCurrentColor)/sizeof(szCurrentColor[0]));
 487         lstrcpynW(szCurrentSize, tf->pszSelectedSize, sizeof(szCurrentSize)/sizeof(szCurrentSize[0]));
 488     }
 489     else {
 490         UXTHEME_RestoreSystemMetrics();
 491         bThemeActive = FALSE;
 492         szCurrentTheme[0] = '\0';
 493         szCurrentColor[0] = '\0';
 494         szCurrentSize[0] = '\0';
 495     }
 496
 497     TRACE("Writing theme config to registry\n");
 498     if(!RegCreateKeyW(HKEY_CURRENT_USER, szThemeManager, &hKey)) {
 499         tmp[0] = bThemeActive?'1':'0';
 500         tmp[1] = '\0';
 501         RegSetValueExW(hKey, szThemeActive, 0, REG_SZ, (const BYTE*)tmp, sizeof(WCHAR)*2);
 502         if(bThemeActive) {
 503             RegSetValueExW(hKey, szColorName, 0, REG_SZ, (const BYTE*)szCurrentColor,
 504                 (lstrlenW(szCurrentColor)+1)*sizeof(WCHAR));
 505             RegSetValueExW(hKey, szSizeName, 0, REG_SZ, (const BYTE*)szCurrentSize,
 506                 (lstrlenW(szCurrentSize)+1)*sizeof(WCHAR));
 507             RegSetValueExW(hKey, szDllName, 0, REG_SZ, (const BYTE*)szCurrentTheme,
 508                 (lstrlenW(szCurrentTheme)+1)*sizeof(WCHAR));
 509         }
 510         else {
 511             RegDeleteValueW(hKey, szColorName);
 512             RegDeleteValueW(hKey, szSizeName);
 513             RegDeleteValueW(hKey, szDllName);
 514
 515         }
 516         RegCloseKey(hKey);
 517     }
 518     else
 519         TRACE("Failed to open theme registry key\n");
 520
 521     UXTHEME_SaveSystemMetrics ();
 522
 523     return hr;
 524 }
 525
 526 /***********************************************************************
 527  *      UXTHEME_InitSystem
 528  */
 529 void UXTHEME_InitSystem(HINSTANCE hInst)
 530 {
 531     static const WCHAR szWindowTheme[] = {
 532         'u','x','_','t','h','e','m','e','\0'
 533     };
 534     static const WCHAR szSubAppName[] = {
 535         'u','x','_','s','u','b','a','p','p','\0'
 536     };
 537     static const WCHAR szSubIdList[] = {
 538         'u','x','_','s','u','b','i','d','l','s','t','\0'
 539     };
 540     static const WCHAR szDialogThemeEnabled[] = {
 541         'u','x','_','d','i','a','l','o','g','t','h','e','m','e','\0'
 542     };
 543
 544     hDllInst = hInst;
 545
 546     atWindowTheme        = GlobalAddAtomW(szWindowTheme);
 547     atSubAppName         = GlobalAddAtomW(szSubAppName);
 548     atSubIdList          = GlobalAddAtomW(szSubIdList);
 549     atDialogThemeEnabled = GlobalAddAtomW(szDialogThemeEnabled);
 550
 551     UXTHEME_LoadTheme();
 552 }
 553
 554 /***********************************************************************
 555  *      IsAppThemed                                         (UXTHEME.@)
 556  */
 557 BOOL WINAPI IsAppThemed(void)
 558 {
 559     return IsThemeActive();
 560 }
 561
 562 /***********************************************************************
 563  *      IsThemeActive                                       (UXTHEME.@)
 564  */
 565 BOOL WINAPI IsThemeActive(void)
 566 {
 567     TRACE("\n");
 568     return bThemeActive;
 569 }
 570
 571 /***********************************************************************
 572  *      EnableTheming                                       (UXTHEME.@)
 573  *
 574  * NOTES
 575  * This is a global and persistent change
 576  */
 577 HRESULT WINAPI EnableTheming(BOOL fEnable)
 578 {
 579     HKEY hKey;
 580     WCHAR szEnabled[] = {'0','\0'};
 581
 582     TRACE("(%d)\n", fEnable);
 583
 584     if(fEnable != bThemeActive) {
 585         if(fEnable)
 586             UXTHEME_BackupSystemMetrics();
 587         else
 588             UXTHEME_RestoreSystemMetrics();
 589         UXTHEME_SaveSystemMetrics ();
 590         bThemeActive = fEnable;
 591         if(bThemeActive) szEnabled[0] = '1';
 592         if(!RegOpenKeyW(HKEY_CURRENT_USER, szThemeManager, &hKey)) {
 593             RegSetValueExW(hKey, szThemeActive, 0, REG_SZ, (LPBYTE)szEnabled, sizeof(WCHAR));
 594             RegCloseKey(hKey);
 595         }
 596         UXTHEME_broadcast_msg (NULL, WM_THEMECHANGED);
 597     }
 598     return S_OK;
 599 }
 600
 601 /***********************************************************************
 602  *      UXTHEME_SetWindowProperty
 603  *
 604  * I'm using atoms as there may be large numbers of duplicated strings
 605  * and they do the work of keeping memory down as a cause of that quite nicely
 606  */
 607 HRESULT UXTHEME_SetWindowProperty(HWND hwnd, ATOM aProp, LPCWSTR pszValue)
 608 {
 609     ATOM oldValue = (ATOM)(size_t)RemovePropW(hwnd, MAKEINTATOMW(aProp));
 610     if(oldValue)
 611         DeleteAtom(oldValue);
 612     if(pszValue) {
 613         ATOM atValue = AddAtomW(pszValue);
 614         if(!atValue
 615            || !SetPropW(hwnd, MAKEINTATOMW(aProp), (LPWSTR)MAKEINTATOMW(atValue))) {
 616             HRESULT hr = HRESULT_FROM_WIN32(GetLastError());
 617             if(atValue) DeleteAtom(atValue);
 618             return hr;
 619         }
 620     }
 621     return S_OK;
 622 }
 623
 624 LPWSTR UXTHEME_GetWindowProperty(HWND hwnd, ATOM aProp, LPWSTR pszBuffer, int dwLen)
 625 {
 626     ATOM atValue = (ATOM)(size_t)GetPropW(hwnd, MAKEINTATOMW(aProp));
 627     if(atValue) {
 628         if(GetAtomNameW(atValue, pszBuffer, dwLen))
 629             return pszBuffer;
 630         TRACE("property defined, but unable to get value\n");
 631     }
 632     return NULL;
 633 }
 634
 635 /***********************************************************************
 636  *      OpenThemeData                                       (UXTHEME.@)
 637  */
 638 HTHEME WINAPI OpenThemeData(HWND hwnd, LPCWSTR pszClassList)
 639 {
 640     WCHAR szAppBuff[256];
 641     WCHAR szClassBuff[256];
 642     LPCWSTR pszAppName;
 643     LPCWSTR pszUseClassList;
 644     HTHEME hTheme = NULL;
 645     TRACE("(%p,%s)", hwnd, debugstr_w(pszClassList));
 646
 647     if(bThemeActive)
 648     {
 649         pszAppName = UXTHEME_GetWindowProperty(hwnd, atSubAppName, szAppBuff, sizeof(szAppBuff)/sizeof(szAppBuff[0]));
 650         /* If SetWindowTheme was used on the window, that overrides the class list passed to this function */
 651         pszUseClassList = UXTHEME_GetWindowProperty(hwnd, atSubIdList, szClassBuff, sizeof(szClassBuff)/sizeof(szClassBuff[0]));
 652         if(!pszUseClassList)
 653             pszUseClassList = pszClassList;
 654
 655         if (pszUseClassList)
 656             hTheme = MSSTYLES_OpenThemeClass(pszAppName, pszUseClassList);
 657     }
 658     if(IsWindow(hwnd))
 659         SetPropW(hwnd, MAKEINTATOMW(atWindowTheme), hTheme);
 660     TRACE(" = %p\n", hTheme);
 661     return hTheme;
 662 }
 663
 664 /***********************************************************************
 665  *      GetWindowTheme                                      (UXTHEME.@)
 666  *
 667  * Retrieve the last theme opened for a window.
 668  *
 669  * PARAMS
 670  *  hwnd  [I] window to retrieve the theme for
 671  *
 672  * RETURNS
 673  *  The most recent theme.
 674  */
 675 HTHEME WINAPI GetWindowTheme(HWND hwnd)
 676 {
 677     TRACE("(%p)\n", hwnd);
 678     return GetPropW(hwnd, MAKEINTATOMW(atWindowTheme));
 679 }
 680
 681 /***********************************************************************
 682  *      SetWindowTheme                                      (UXTHEME.@)
 683  *
 684  * Persistent through the life of the window, even after themes change
 685  */
 686 HRESULT WINAPI SetWindowTheme(HWND hwnd, LPCWSTR pszSubAppName,
 687                               LPCWSTR pszSubIdList)
 688 {
 689     HRESULT hr;
 690     TRACE("(%p,%s,%s)\n", hwnd, debugstr_w(pszSubAppName),
 691           debugstr_w(pszSubIdList));
 692     hr = UXTHEME_SetWindowProperty(hwnd, atSubAppName, pszSubAppName);
 693     if(SUCCEEDED(hr))
 694         hr = UXTHEME_SetWindowProperty(hwnd, atSubIdList, pszSubIdList);
 695     if(SUCCEEDED(hr))
 696         UXTHEME_broadcast_msg (hwnd, WM_THEMECHANGED);
 697     return hr;
 698 }
 699
 700 /***********************************************************************
 701  *      GetCurrentThemeName                                 (UXTHEME.@)
 702  */
 703 HRESULT WINAPI GetCurrentThemeName(LPWSTR pszThemeFileName, int dwMaxNameChars,
 704                                    LPWSTR pszColorBuff, int cchMaxColorChars,
 705                                    LPWSTR pszSizeBuff, int cchMaxSizeChars)
 706 {
 707     if(!bThemeActive)
 708         return E_PROP_ID_UNSUPPORTED;
 709     if(pszThemeFileName) lstrcpynW(pszThemeFileName, szCurrentTheme, dwMaxNameChars);
 710     if(pszColorBuff) lstrcpynW(pszColorBuff, szCurrentColor, cchMaxColorChars);
 711     if(pszSizeBuff) lstrcpynW(pszSizeBuff, szCurrentSize, cchMaxSizeChars);
 712     return S_OK;
 713 }
 714
 715 /***********************************************************************
 716  *      GetThemeAppProperties                               (UXTHEME.@)
 717  */
 718 DWORD WINAPI GetThemeAppProperties(void)
 719 {
 720     return dwThemeAppProperties;
 721 }
 722
 723 /***********************************************************************
 724  *      SetThemeAppProperties                               (UXTHEME.@)
 725  */
 726 void WINAPI SetThemeAppProperties(DWORD dwFlags)
 727 {
 728     TRACE("(0x%08lx)\n", dwFlags);
 729     dwThemeAppProperties = dwFlags;
 730 }
 731
 732 /***********************************************************************
 733  *      CloseThemeData                                      (UXTHEME.@)
 734  */
 735 HRESULT WINAPI CloseThemeData(HTHEME hTheme)
 736 {
 737     TRACE("(%p)\n", hTheme);
 738     if(!hTheme)
 739         return E_HANDLE;
 740     return MSSTYLES_CloseThemeClass(hTheme);
 741 }
 742
 743 /***********************************************************************
 744  *      HitTestThemeBackground                              (UXTHEME.@)
 745  */
 746 HRESULT WINAPI HitTestThemeBackground(HTHEME hTheme, HDC hdc, int iPartId,
 747                                      int iStateId, DWORD dwOptions,
 748                                      const RECT *pRect, HRGN hrgn,
 749                                      POINT ptTest, WORD *pwHitTestCode)
 750 {
 751     FIXME("%d %d 0x%08lx: stub\n", iPartId, iStateId, dwOptions);
 752     if(!hTheme)
 753         return E_HANDLE;
 754     return ERROR_CALL_NOT_IMPLEMENTED;
 755 }
 756
 757 /***********************************************************************
 758  *      IsThemePartDefined                                  (UXTHEME.@)
 759  */
 760 BOOL WINAPI IsThemePartDefined(HTHEME hTheme, int iPartId, int iStateId)
 761 {
 762     TRACE("(%p,%d,%d)\n", hTheme, iPartId, iStateId);
 763     if(!hTheme) {
 764         SetLastError(E_HANDLE);
 765         return FALSE;
 766     }
 767     if(MSSTYLES_FindPartState(hTheme, iPartId, iStateId, NULL))
 768         return TRUE;
 769     return FALSE;
 770 }
 771
 772 /***********************************************************************
 773  *      GetThemeDocumentationProperty                       (UXTHEME.@)
 774  *
 775  * Try and retrieve the documentation property from string resources
 776  * if that fails, get it from the [documentation] section of themes.ini
 777  */
 778 HRESULT WINAPI GetThemeDocumentationProperty(LPCWSTR pszThemeName,
 779                                              LPCWSTR pszPropertyName,
 780                                              LPWSTR pszValueBuff,
 781                                              int cchMaxValChars)
 782 {
 783     const WORD wDocToRes[] = {
 784         TMT_DISPLAYNAME,5000,
 785         TMT_TOOLTIP,5001,
 786         TMT_COMPANY,5002,
 787         TMT_AUTHOR,5003,
 788         TMT_COPYRIGHT,5004,
 789         TMT_URL,5005,
 790         TMT_VERSION,5006,
 791         TMT_DESCRIPTION,5007
 792     };
 793
 794     PTHEME_FILE pt;
 795     HRESULT hr;
 796     unsigned int i;
 797     int iDocId;
 798     TRACE("(%s,%s,%p,%d)\n", debugstr_w(pszThemeName), debugstr_w(pszPropertyName),
 799           pszValueBuff, cchMaxValChars);
 800
 801     hr = MSSTYLES_OpenThemeFile(pszThemeName, NULL, NULL, &pt);
 802     if(FAILED(hr)) return hr;
 803
 804     /* Try to load from string resources */
 805     hr = E_PROP_ID_UNSUPPORTED;
 806     if(MSSTYLES_LookupProperty(pszPropertyName, NULL, &iDocId)) {
 807         for(i=0; i<sizeof(wDocToRes)/sizeof(wDocToRes[0]); i+=2) {
 808             if(wDocToRes[i] == iDocId) {
 809                 if(LoadStringW(pt->hTheme, wDocToRes[i+1], pszValueBuff, cchMaxValChars)) {
 810                     hr = S_OK;
 811                     break;
 812                 }
 813             }
 814         }
 815     }
 816     /* If loading from string resource failed, try getting it from the theme.ini */
 817     if(FAILED(hr)) {
 818         PUXINI_FILE uf = MSSTYLES_GetThemeIni(pt);
 819         if(UXINI_FindSection(uf, szIniDocumentation)) {
 820             LPCWSTR lpValue;
 821             DWORD dwLen;
 822             if(UXINI_FindValue(uf, pszPropertyName, &lpValue, &dwLen)) {
 823                 lstrcpynW(pszValueBuff, lpValue, min(dwLen+1,cchMaxValChars));
 824                 hr = S_OK;
 825             }
 826         }
 827         UXINI_CloseINI(uf);
 828     }
 829
 830     MSSTYLES_CloseThemeFile(pt);
 831     return hr;
 832 }
 833
 834 /**********************************************************************
 835  *      Undocumented functions
 836  */
 837
 838 /**********************************************************************
 839  *      QueryThemeServices                                 (UXTHEME.1)
 840  *
 841  * RETURNS
 842  *     some kind of status flag
 843  */
 844 DWORD WINAPI QueryThemeServices()
 845 {
 846     FIXME("stub\n");
 847     return 3; /* This is what is returned under XP in most cases */
 848 }
 849
 850
 851 /**********************************************************************
 852  *      OpenThemeFile                                      (UXTHEME.2)
 853  *
 854  * Opens a theme file, which can be used to change the current theme, etc
 855  *
 856  * PARAMS
 857  *     pszThemeFileName    Path to a msstyles theme file
 858  *     pszColorName        Color defined in the theme, eg. NormalColor
 859  *     pszSizeName         Size defined in the theme, eg. NormalSize
 860  *     hThemeFile          Handle to theme file
 861  *
 862  * RETURNS
 863  *     Success: S_OK
 864  *     Failure: HRESULT error-code
 865  */
 866 HRESULT WINAPI OpenThemeFile(LPCWSTR pszThemeFileName, LPCWSTR pszColorName,
 867                              LPCWSTR pszSizeName, HTHEMEFILE *hThemeFile,
 868                              DWORD unknown)
 869 {
 870     TRACE("(%s,%s,%s,%p,%ld)\n", debugstr_w(pszThemeFileName),
 871           debugstr_w(pszColorName), debugstr_w(pszSizeName),
 872           hThemeFile, unknown);
 873     return MSSTYLES_OpenThemeFile(pszThemeFileName, pszColorName, pszSizeName, (PTHEME_FILE*)hThemeFile);
 874 }
 875
 876 /**********************************************************************
 877  *      CloseThemeFile                                     (UXTHEME.3)
 878  *
 879  * Releases theme file handle returned by OpenThemeFile
 880  *
 881  * PARAMS
 882  *     hThemeFile           Handle to theme file
 883  *
 884  * RETURNS
 885  *     Success: S_OK
 886  *     Failure: HRESULT error-code
 887  */
 888 HRESULT WINAPI CloseThemeFile(HTHEMEFILE hThemeFile)
 889 {
 890     TRACE("(%p)\n", hThemeFile);
 891     MSSTYLES_CloseThemeFile(hThemeFile);
 892     return S_OK;
 893 }
 894
 895 /**********************************************************************
 896  *      ApplyTheme                                         (UXTHEME.4)
 897  *
 898  * Set a theme file to be the currently active theme
 899  *
 900  * PARAMS
 901  *     hThemeFile           Handle to theme file
 902  *     unknown              See notes
 903  *     hWnd                 Window requesting the theme change
 904  *
 905  * RETURNS
 906  *     Success: S_OK
 907  *     Failure: HRESULT error-code
 908  *
 909  * NOTES
 910  * I'm not sure what the second parameter is (the datatype is likely wrong), other then this:
 911  * Under XP if I pass
 912  * char b[] = "";
 913  *   the theme is applied with the screen redrawing really badly (flickers)
 914  * char b[] = "\0"; where \0 can be one or more of any character, makes no difference
 915  *   the theme is applied smoothly (screen does not flicker)
 916  * char *b = "\0" or NULL; where \0 can be zero or more of any character, makes no difference
 917  *   the function fails returning invalid parameter...very strange
 918  */
 919 HRESULT WINAPI ApplyTheme(HTHEMEFILE hThemeFile, char *unknown, HWND hWnd)
 920 {
 921     HRESULT hr;
 922     TRACE("(%p,%s,%p)\n", hThemeFile, unknown, hWnd);
 923     hr = UXTHEME_SetActiveTheme(hThemeFile);
 924     UXTHEME_broadcast_msg (NULL, WM_THEMECHANGED);
 925     return hr;
 926 }
 927
 928 /**********************************************************************
 929  *      GetThemeDefaults                                   (UXTHEME.7)
 930  *
 931  * Get the default color & size for a theme
 932  *
 933  * PARAMS
 934  *     pszThemeFileName    Path to a msstyles theme file
 935  *     pszColorName        Buffer to receive the default color name
 936  *     dwColorNameLen      Length, in characters, of color name buffer
 937  *     pszSizeName         Buffer to receive the default size name
 938  *     dwSizeNameLen       Length, in characters, of size name buffer
 939  *
 940  * RETURNS
 941  *     Success: S_OK
 942  *     Failure: HRESULT error-code
 943  */
 944 HRESULT WINAPI GetThemeDefaults(LPCWSTR pszThemeFileName, LPWSTR pszColorName,
 945                                 DWORD dwColorNameLen, LPWSTR pszSizeName,
 946                                 DWORD dwSizeNameLen)
 947 {
 948     PTHEME_FILE pt;
 949     HRESULT hr;
 950     TRACE("(%s,%p,%ld,%p,%ld)\n", debugstr_w(pszThemeFileName),
 951           pszColorName, dwColorNameLen,
 952           pszSizeName, dwSizeNameLen);
 953
 954     hr = MSSTYLES_OpenThemeFile(pszThemeFileName, NULL, NULL, &pt);
 955     if(FAILED(hr)) return hr;
 956
 957     lstrcpynW(pszColorName, pt->pszSelectedColor, dwColorNameLen);
 958     lstrcpynW(pszSizeName, pt->pszSelectedSize, dwSizeNameLen);
 959
 960     MSSTYLES_CloseThemeFile(pt);
 961     return S_OK;
 962 }
 963
 964 /**********************************************************************
 965  *      EnumThemes                                         (UXTHEME.8)
 966  *
 967  * Enumerate available themes, calls specified EnumThemeProc for each
 968  * theme found. Passes lpData through to callback function.
 969  *
 970  * PARAMS
 971  *     pszThemePath        Path containing themes
 972  *     callback            Called for each theme found in path
 973  *     lpData              Passed through to callback
 974  *
 975  * RETURNS
 976  *     Success: S_OK
 977  *     Failure: HRESULT error-code
 978  */
 979 HRESULT WINAPI EnumThemes(LPCWSTR pszThemePath, EnumThemeProc callback,
 980                           LPVOID lpData)
 981 {
 982     WCHAR szDir[MAX_PATH];
 983     WCHAR szPath[MAX_PATH];
 984     static const WCHAR szStar[] = {'*','.','*','\0'};
 985     static const WCHAR szFormat[] = {'%','s','%','s','\\','%','s','.','m','s','s','t','y','l','e','s','\0'};
 986     static const WCHAR szDisplayName[] = {'d','i','s','p','l','a','y','n','a','m','e','\0'};
 987     static const WCHAR szTooltip[] = {'t','o','o','l','t','i','p','\0'};
 988     WCHAR szName[60];
 989     WCHAR szTip[60];
 990     HANDLE hFind;
 991     WIN32_FIND_DATAW wfd;
 992     HRESULT hr;
 993     size_t pathLen;
 994
 995     TRACE("(%s,%p,%p)\n", debugstr_w(pszThemePath), callback, lpData);
 996
 997     if(!pszThemePath || !callback)
 998         return E_POINTER;
 999
1000     lstrcpyW(szDir, pszThemePath);
1001     pathLen = lstrlenW (szDir);
1002     if ((pathLen > 0) && (pathLen < MAX_PATH-1) && (szDir[pathLen - 1] != '\\'))
1003     {
1004         szDir[pathLen] = '\\';
1005         szDir[pathLen+1] = 0;
1006     }
1007
1008     lstrcpyW(szPath, szDir);
1009     lstrcatW(szPath, szStar);
1010     TRACE("searching %s\n", debugstr_w(szPath));
1011
1012     hFind = FindFirstFileW(szPath, &wfd);
1013     if(hFind != INVALID_HANDLE_VALUE) {
1014         do {
1015             if(wfd.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY
1016                && !(wfd.cFileName[0] == '.' && ((wfd.cFileName[1] == '.' && wfd.cFileName[2] == 0) || wfd.cFileName[1] == 0))) {
1017                 wsprintfW(szPath, szFormat, szDir, wfd.cFileName, wfd.cFileName);
1018
1019                 hr = GetThemeDocumentationProperty(szPath, szDisplayName, szName, sizeof(szName)/sizeof(szName[0]));
1020                 if(SUCCEEDED(hr))
1021                     hr = GetThemeDocumentationProperty(szPath, szTooltip, szTip, sizeof(szTip)/sizeof(szTip[0]));
1022                 if(SUCCEEDED(hr)) {
1023                     TRACE("callback(%s,%s,%s,%p)\n", debugstr_w(szPath), debugstr_w(szName), debugstr_w(szTip), lpData);
1024                     if(!callback(NULL, szPath, szName, szTip, NULL, lpData)) {
1025                         TRACE("callback ended enum\n");
1026                         break;
1027                     }
1028                 }
1029             }
1030         } while(FindNextFileW(hFind, &wfd));
1031         FindClose(hFind);
1032     }
1033     return S_OK;
1034 }
1035
1036
1037 /**********************************************************************
1038  *      EnumThemeColors                                    (UXTHEME.9)
1039  *
1040  * Enumerate theme colors available with a particular size
1041  *
1042  * PARAMS
1043  *     pszThemeFileName    Path to a msstyles theme file
1044  *     pszSizeName         Theme size to enumerate available colors
1045  *                         If NULL the default theme size is used
1046  *     dwColorNum          Color index to retrieve, increment from 0
1047  *     pszColorNames       Output color names
1048  *
1049  * RETURNS
1050  *     S_OK on success
1051  *     E_PROP_ID_UNSUPPORTED when dwColorName does not refer to a color
1052  *          or when pszSizeName does not refer to a valid size
1053  *
1054  * NOTES
1055  * XP fails with E_POINTER when pszColorNames points to a buffer smaller than
1056  * sizeof(THEMENAMES).
1057  *
1058  * Not very efficient that I'm opening & validating the theme every call, but
1059  * this is undocumented and almost never called..
1060  * (and this is how windows works too)
1061  */
1062 HRESULT WINAPI EnumThemeColors(LPWSTR pszThemeFileName, LPWSTR pszSizeName,
1063                                DWORD dwColorNum, PTHEMENAMES pszColorNames)
1064 {
1065     PTHEME_FILE pt;
1066     HRESULT hr;
1067     LPWSTR tmp;
1068     UINT resourceId = dwColorNum + 1000;
1069     TRACE("(%s,%s,%ld)\n", debugstr_w(pszThemeFileName),
1070           debugstr_w(pszSizeName), dwColorNum);
1071
1072     hr = MSSTYLES_OpenThemeFile(pszThemeFileName, NULL, pszSizeName, &pt);
1073     if(FAILED(hr)) return hr;
1074
1075     tmp = pt->pszAvailColors;
1076     while(dwColorNum && *tmp) {
1077         dwColorNum--;
1078         tmp += lstrlenW(tmp)+1;
1079     }
1080     if(!dwColorNum && *tmp) {
1081         TRACE("%s\n", debugstr_w(tmp));
1082         lstrcpyW(pszColorNames->szName, tmp);
1083         LoadStringW (pt->hTheme, resourceId,
1084             pszColorNames->szDisplayName,
1085             sizeof (pszColorNames->szDisplayName) / sizeof (WCHAR));
1086         LoadStringW (pt->hTheme, resourceId+1000,
1087             pszColorNames->szTooltip,
1088             sizeof (pszColorNames->szTooltip) / sizeof (WCHAR));
1089     }
1090     else
1091         hr = E_PROP_ID_UNSUPPORTED;
1092
1093     MSSTYLES_CloseThemeFile(pt);
1094     return hr;
1095 }
1096
1097 /**********************************************************************
1098  *      EnumThemeSizes                                     (UXTHEME.10)
1099  *
1100  * Enumerate theme colors available with a particular size
1101  *
1102  * PARAMS
1103  *     pszThemeFileName    Path to a msstyles theme file
1104  *     pszColorName        Theme color to enumerate available sizes
1105  *                         If NULL the default theme color is used
1106  *     dwSizeNum           Size index to retrieve, increment from 0
1107  *     pszSizeNames        Output size names
1108  *
1109  * RETURNS
1110  *     S_OK on success
1111  *     E_PROP_ID_UNSUPPORTED when dwSizeName does not refer to a size
1112  *          or when pszColorName does not refer to a valid color
1113  *
1114  * NOTES
1115  * XP fails with E_POINTER when pszSizeNames points to a buffer smaller than
1116  * sizeof(THEMENAMES).
1117  *
1118  * Not very efficient that I'm opening & validating the theme every call, but
1119  * this is undocumented and almost never called..
1120  * (and this is how windows works too)
1121  */
1122 HRESULT WINAPI EnumThemeSizes(LPWSTR pszThemeFileName, LPWSTR pszColorName,
1123                               DWORD dwSizeNum, PTHEMENAMES pszSizeNames)
1124 {
1125     PTHEME_FILE pt;
1126     HRESULT hr;
1127     LPWSTR tmp;
1128     UINT resourceId = dwSizeNum + 3000;
1129     TRACE("(%s,%s,%ld)\n", debugstr_w(pszThemeFileName),
1130           debugstr_w(pszColorName), dwSizeNum);
1131
1132     hr = MSSTYLES_OpenThemeFile(pszThemeFileName, pszColorName, NULL, &pt);
1133     if(FAILED(hr)) return hr;
1134
1135     tmp = pt->pszAvailSizes;
1136     while(dwSizeNum && *tmp) {
1137         dwSizeNum--;
1138         tmp += lstrlenW(tmp)+1;
1139     }
1140     if(!dwSizeNum && *tmp) {
1141         TRACE("%s\n", debugstr_w(tmp));
1142         lstrcpyW(pszSizeNames->szName, tmp);
1143         LoadStringW (pt->hTheme, resourceId,
1144             pszSizeNames->szDisplayName,
1145             sizeof (pszSizeNames->szDisplayName) / sizeof (WCHAR));
1146         LoadStringW (pt->hTheme, resourceId+1000,
1147             pszSizeNames->szTooltip,
1148             sizeof (pszSizeNames->szTooltip) / sizeof (WCHAR));
1149     }
1150     else
1151         hr = E_PROP_ID_UNSUPPORTED;
1152
1153     MSSTYLES_CloseThemeFile(pt);
1154     return hr;
1155 }
1156
1157 /**********************************************************************
1158  *      ParseThemeIniFile                                  (UXTHEME.11)
1159  *
1160  * Enumerate data in a theme INI file.
1161  *
1162  * PARAMS
1163  *     pszIniFileName      Path to a theme ini file
1164  *     pszUnknown          Cannot be NULL, L"" is valid
1165  *     callback            Called for each found entry
1166  *     lpData              Passed through to callback
1167  *
1168  * RETURNS
1169  *     S_OK on success
1170  *     0x800706488 (Unknown property) when enumeration is canceled from callback
1171  *
1172  * NOTES
1173  * When pszUnknown is NULL the callback is never called, the value does not seem to surve
1174  * any other purpose
1175  */
1176 HRESULT WINAPI ParseThemeIniFile(LPCWSTR pszIniFileName, LPWSTR pszUnknown,
1177                                  ParseThemeIniFileProc callback, LPVOID lpData)
1178 {
1179     FIXME("%s %s: stub\n", debugstr_w(pszIniFileName), debugstr_w(pszUnknown));
1180     return ERROR_CALL_NOT_IMPLEMENTED;
1181 }
1182
1183 /**********************************************************************
1184  *      CheckThemeSignature                                (UXTHEME.29)
1185  *
1186  * Validates the signature of a theme file
1187  *
1188  * PARAMS
1189  *     pszIniFileName      Path to a theme file
1190  *
1191  * RETURNS
1192  *     Success: S_OK
1193  *     Failure: HRESULT error-code
1194  */
1195 HRESULT WINAPI CheckThemeSignature(LPCWSTR pszThemeFileName)
1196 {
1197     PTHEME_FILE pt;
1198     HRESULT hr;
1199     TRACE("(%s)\n", debugstr_w(pszThemeFileName));
1200     hr = MSSTYLES_OpenThemeFile(pszThemeFileName, NULL, NULL, &pt);
1201     if(FAILED(hr))
1202         return hr;
1203     MSSTYLES_CloseThemeFile(pt);
1204     return S_OK;
1205 }