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 "vfwmsgs.h"
  32 #include "uxtheme.h"
  33 #include "tmschema.h"
  34
  35 #include "uxthemedll.h"
  36 #include "msstyles.h"
  37
  38 #include "wine/debug.h"
  39
  40 WINE_DEFAULT_DEBUG_CHANNEL(uxtheme);
  41
  42 /***********************************************************************
  43  * Defines and global variables
  44  */
  45
  46 static const WCHAR szThemeManager[] = {
  47     'S','o','f','t','w','a','r','e','\\',
  48     'M','i','c','r','o','s','o','f','t','\\',
  49     'W','i','n','d','o','w','s','\\',
  50     'C','u','r','r','e','n','t','V','e','r','s','i','o','n','\\',
  51     'T','h','e','m','e','M','a','n','a','g','e','r','\0'
  52 };
  53 static const WCHAR szThemeActive[] = {'T','h','e','m','e','A','c','t','i','v','e','\0'};
  54 static const WCHAR szSizeName[] = {'S','i','z','e','N','a','m','e','\0'};
  55 static const WCHAR szColorName[] = {'C','o','l','o','r','N','a','m','e','\0'};
  56 static const WCHAR szDllName[] = {'D','l','l','N','a','m','e','\0'};
  57
  58 static const WCHAR szIniDocumentation[] = {'d','o','c','u','m','e','n','t','a','t','i','o','n','\0'};
  59
  60 HINSTANCE hDllInst;
  61 ATOM atDialogThemeEnabled;
  62
  63 static DWORD dwThemeAppProperties = STAP_ALLOW_NONCLIENT | STAP_ALLOW_CONTROLS;
  64 static ATOM atWindowTheme;
  65 static ATOM atSubAppName;
  66 static ATOM atSubIdList;
  67
  68 static BOOL bThemeActive = FALSE;
  69 static WCHAR szCurrentTheme[MAX_PATH];
  70 static WCHAR szCurrentColor[64];
  71 static WCHAR szCurrentSize[64];
  72
  73 /***********************************************************************/
  74
  75 static BOOL CALLBACK UXTHEME_broadcast_msg_enumchild (HWND hWnd, LPARAM msg)
  76 {
  77     PostMessageW(hWnd, msg, 0, 0);
  78     return TRUE;
  79 }
  80
  81 /* Broadcast a message to *all* windows, including children */
  82 static BOOL CALLBACK UXTHEME_broadcast_msg (HWND hWnd, LPARAM msg)
  83 {
  84     if (hWnd == NULL)
  85     {
  86         EnumWindows (UXTHEME_broadcast_msg, msg);
  87     }
  88     else
  89     {
  90         PostMessageW(hWnd, msg, 0, 0);
  91         EnumChildWindows (hWnd, UXTHEME_broadcast_msg_enumchild, msg);
  92     }
  93     return TRUE;
  94 }
  95
  96 /* At the end of the day this is a subset of what SHRegGetPath() does - copied
  97  * here to avoid linking against shlwapi. */
  98 static DWORD query_reg_path (HKEY hKey, LPCWSTR lpszValue,
  99                              LPVOID pvData)
 100 {
 101   DWORD dwRet, dwType, dwUnExpDataLen = MAX_PATH, dwExpDataLen;
 102
 103   TRACE("(hkey=%p,%s,%p)\n", hKey, debugstr_w(lpszValue),
 104         pvData);
 105
 106   dwRet = RegQueryValueExW(hKey, lpszValue, 0, &dwType, pvData, &dwUnExpDataLen);
 107   if (dwRet!=ERROR_SUCCESS && dwRet!=ERROR_MORE_DATA)
 108       return dwRet;
 109
 110   if (dwType == REG_EXPAND_SZ)
 111   {
 112     DWORD nBytesToAlloc;
 113
 114     /* Expand type REG_EXPAND_SZ into REG_SZ */
 115     LPWSTR szData;
 116
 117     /* If the caller didn't supply a buffer or the buffer is too small we have
 118      * to allocate our own
 119      */
 120     if (dwRet == ERROR_MORE_DATA)
 121     {
 122       WCHAR cNull = '\0';
 123       nBytesToAlloc = dwUnExpDataLen;
 124
 125       szData = (LPWSTR) LocalAlloc(LMEM_ZEROINIT, nBytesToAlloc);
 126       RegQueryValueExW (hKey, lpszValue, 0, NULL, (LPBYTE)szData, &nBytesToAlloc);
 127       dwExpDataLen = ExpandEnvironmentStringsW(szData, &cNull, 1);
 128       dwUnExpDataLen = max(nBytesToAlloc, dwExpDataLen);
 129       LocalFree((HLOCAL) szData);
 130     }
 131     else
 132     {
 133       nBytesToAlloc = (lstrlenW(pvData) + 1) * sizeof(WCHAR);
 134       szData = (LPWSTR) LocalAlloc(LMEM_ZEROINIT, nBytesToAlloc );
 135       lstrcpyW(szData, pvData);
 136       dwExpDataLen = ExpandEnvironmentStringsW(szData, pvData, MAX_PATH );
 137       if (dwExpDataLen > MAX_PATH) dwRet = ERROR_MORE_DATA;
 138       dwUnExpDataLen = max(nBytesToAlloc, dwExpDataLen);
 139       LocalFree((HLOCAL) szData);
 140     }
 141   }
 142
 143   RegCloseKey(hKey);
 144   return dwRet;
 145 }
 146
 147 /***********************************************************************
 148  *      UXTHEME_LoadTheme
 149  *
 150  * Set the current active theme from the registry
 151  */
 152 static void UXTHEME_LoadTheme(void)
 153 {
 154     HKEY hKey;
 155     DWORD buffsize;
 156     HRESULT hr;
 157     WCHAR tmp[10];
 158     PTHEME_FILE pt;
 159
 160     /* Get current theme configuration */
 161     if(!RegOpenKeyW(HKEY_CURRENT_USER, szThemeManager, &hKey)) {
 162         TRACE("Loading theme config\n");
 163         buffsize = sizeof(tmp)/sizeof(tmp[0]);
 164         if(!RegQueryValueExW(hKey, szThemeActive, NULL, NULL, (LPBYTE)tmp, &buffsize)) {
 165             bThemeActive = (tmp[0] != '0');
 166         }
 167         else {
 168             bThemeActive = FALSE;
 169             TRACE("Failed to get ThemeActive: %d\n", GetLastError());
 170         }
 171         buffsize = sizeof(szCurrentColor)/sizeof(szCurrentColor[0]);
 172         if(RegQueryValueExW(hKey, szColorName, NULL, NULL, (LPBYTE)szCurrentColor, &buffsize))
 173             szCurrentColor[0] = '\0';
 174         buffsize = sizeof(szCurrentSize)/sizeof(szCurrentSize[0]);
 175         if(RegQueryValueExW(hKey, szSizeName, NULL, NULL, (LPBYTE)szCurrentSize, &buffsize))
 176             szCurrentSize[0] = '\0';
 177         if (query_reg_path (hKey, szDllName, szCurrentTheme))
 178             szCurrentTheme[0] = '\0';
 179         RegCloseKey(hKey);
 180     }
 181     else
 182         TRACE("Failed to open theme registry key\n");
 183
 184     if(bThemeActive) {
 185         /* Make sure the theme requested is actually valid */
 186         hr = MSSTYLES_OpenThemeFile(szCurrentTheme,
 187                                     szCurrentColor[0]?szCurrentColor:NULL,
 188                                     szCurrentSize[0]?szCurrentSize:NULL,
 189                                     &pt);
 190         if(FAILED(hr)) {
 191             bThemeActive = FALSE;
 192             szCurrentTheme[0] = '\0';
 193             szCurrentColor[0] = '\0';
 194             szCurrentSize[0] = '\0';
 195         }
 196         else {
 197             /* Make sure the global color & size match the theme */
 198             lstrcpynW(szCurrentColor, pt->pszSelectedColor, sizeof(szCurrentColor)/sizeof(szCurrentColor[0]));
 199             lstrcpynW(szCurrentSize, pt->pszSelectedSize, sizeof(szCurrentSize)/sizeof(szCurrentSize[0]));
 200
 201             MSSTYLES_SetActiveTheme(pt, FALSE);
 202             TRACE("Theme active: %s %s %s\n", debugstr_w(szCurrentTheme),
 203                 debugstr_w(szCurrentColor), debugstr_w(szCurrentSize));
 204             MSSTYLES_CloseThemeFile(pt);
 205         }
 206     }
 207     if(!bThemeActive) {
 208         MSSTYLES_SetActiveTheme(NULL, FALSE);
 209         TRACE("Theming not active\n");
 210     }
 211 }
 212
 213 /***********************************************************************/
 214
 215 static const char * const SysColorsNames[] =
 216 {
 217     "Scrollbar",                /* COLOR_SCROLLBAR */
 218     "Background",               /* COLOR_BACKGROUND */
 219     "ActiveTitle",              /* COLOR_ACTIVECAPTION */
 220     "InactiveTitle",            /* COLOR_INACTIVECAPTION */
 221     "Menu",                     /* COLOR_MENU */
 222     "Window",                   /* COLOR_WINDOW */
 223     "WindowFrame",              /* COLOR_WINDOWFRAME */
 224     "MenuText",                 /* COLOR_MENUTEXT */
 225     "WindowText",               /* COLOR_WINDOWTEXT */
 226     "TitleText",                /* COLOR_CAPTIONTEXT */
 227     "ActiveBorder",             /* COLOR_ACTIVEBORDER */
 228     "InactiveBorder",           /* COLOR_INACTIVEBORDER */
 229     "AppWorkSpace",             /* COLOR_APPWORKSPACE */
 230     "Hilight",                  /* COLOR_HIGHLIGHT */
 231     "HilightText",              /* COLOR_HIGHLIGHTTEXT */
 232     "ButtonFace",               /* COLOR_BTNFACE */
 233     "ButtonShadow",             /* COLOR_BTNSHADOW */
 234     "GrayText",                 /* COLOR_GRAYTEXT */
 235     "ButtonText",               /* COLOR_BTNTEXT */
 236     "InactiveTitleText",        /* COLOR_INACTIVECAPTIONTEXT */
 237     "ButtonHilight",            /* COLOR_BTNHIGHLIGHT */
 238     "ButtonDkShadow",           /* COLOR_3DDKSHADOW */
 239     "ButtonLight",              /* COLOR_3DLIGHT */
 240     "InfoText",                 /* COLOR_INFOTEXT */
 241     "InfoWindow",               /* COLOR_INFOBK */
 242     "ButtonAlternateFace",      /* COLOR_ALTERNATEBTNFACE */
 243     "HotTrackingColor",         /* COLOR_HOTLIGHT */
 244     "GradientActiveTitle",      /* COLOR_GRADIENTACTIVECAPTION */
 245     "GradientInactiveTitle",    /* COLOR_GRADIENTINACTIVECAPTION */
 246     "MenuHilight",              /* COLOR_MENUHILIGHT */
 247     "MenuBar",                  /* COLOR_MENUBAR */
 248 };
 249 static const WCHAR strColorKey[] =
 250     { 'C','o','n','t','r','o','l',' ','P','a','n','e','l','\\',
 251       'C','o','l','o','r','s',0 };
 252 static const WCHAR keyFlatMenus[] = { 'F','l','a','t','M','e','n','u', 0};
 253 static const WCHAR keyGradientCaption[] = { 'G','r','a','d','i','e','n','t',
 254                                             'C','a','p','t','i','o','n', 0 };
 255 static const WCHAR keyNonClientMetrics[] = { 'N','o','n','C','l','i','e','n','t',
 256                                              'M','e','t','r','i','c','s',0 };
 257 static const WCHAR keyIconTitleFont[] = { 'I','c','o','n','T','i','t','l','e',
 258                                           'F','o','n','t',0 };
 259
 260 static const struct BackupSysParam
 261 {
 262     int spiGet, spiSet;
 263     const WCHAR* keyName;
 264 } backupSysParams[] =
 265 {
 266     {SPI_GETFLATMENU, SPI_SETFLATMENU, keyFlatMenus},
 267     {SPI_GETGRADIENTCAPTIONS, SPI_SETGRADIENTCAPTIONS, keyGradientCaption},
 268     {-1, -1, 0}
 269 };
 270
 271 #define NUM_SYS_COLORS     (COLOR_MENUBAR+1)
 272
 273 static void save_sys_colors (HKEY baseKey)
 274 {
 275     char colorStr[13];
 276     HKEY hKey;
 277     int i;
 278
 279     if (RegCreateKeyExW( baseKey, strColorKey,
 280                          0, 0, 0, KEY_ALL_ACCESS,
 281                          0, &hKey, 0 ) == ERROR_SUCCESS)
 282     {
 283         for (i = 0; i < NUM_SYS_COLORS; i++)
 284         {
 285             COLORREF col = GetSysColor (i);
 286
 287             sprintf (colorStr, "%d %d %d",
 288                 GetRValue (col), GetGValue (col), GetBValue (col));
 289
 290             RegSetValueExA (hKey, SysColorsNames[i], 0, REG_SZ,
 291                 (BYTE*)colorStr, strlen (colorStr)+1);
 292         }
 293         RegCloseKey (hKey);
 294     }
 295 }
 296
 297 /* Before activating a theme, query current system colors, certain settings
 298  * and backup them in the registry, so they can be restored when the theme
 299  * is deactivated */
 300 static void UXTHEME_BackupSystemMetrics(void)
 301 {
 302     HKEY hKey;
 303     const struct BackupSysParam* bsp = backupSysParams;
 304
 305     if (RegCreateKeyExW( HKEY_CURRENT_USER, szThemeManager,
 306                          0, 0, 0, KEY_ALL_ACCESS,
 307                          0, &hKey, 0) == ERROR_SUCCESS)
 308     {
 309         NONCLIENTMETRICSW ncm;
 310         LOGFONTW iconTitleFont;
 311
 312         /* back up colors */
 313         save_sys_colors (hKey);
 314
 315         /* back up "other" settings */
 316         while (bsp->spiGet >= 0)
 317         {
 318             DWORD value;
 319
 320             SystemParametersInfoW (bsp->spiGet, 0, &value, 0);
 321             RegSetValueExW (hKey, bsp->keyName, 0, REG_DWORD,
 322                 (LPBYTE)&value, sizeof (value));
 323
 324             bsp++;
 325         }
 326
 327         /* back up non-client metrics */
 328         memset (&ncm, 0, sizeof (ncm));
 329         ncm.cbSize = sizeof (ncm);
 330         SystemParametersInfoW (SPI_GETNONCLIENTMETRICS, sizeof (ncm), &ncm, 0);
 331         RegSetValueExW (hKey, keyNonClientMetrics, 0, REG_BINARY, (LPBYTE)&ncm,
 332             sizeof (ncm));
 333         memset (&iconTitleFont, 0, sizeof (iconTitleFont));
 334         SystemParametersInfoW (SPI_GETICONTITLELOGFONT, sizeof (iconTitleFont),
 335             &iconTitleFont, 0);
 336         RegSetValueExW (hKey, keyIconTitleFont, 0, REG_BINARY,
 337             (LPBYTE)&iconTitleFont, sizeof (iconTitleFont));
 338
 339         RegCloseKey (hKey);
 340     }
 341 }
 342
 343 /* Read back old settings after a theme was deactivated */
 344 static void UXTHEME_RestoreSystemMetrics(void)
 345 {
 346     HKEY hKey;
 347     const struct BackupSysParam* bsp = backupSysParams;
 348
 349     if (RegOpenKeyExW (HKEY_CURRENT_USER, szThemeManager,
 350                        0, KEY_QUERY_VALUE, &hKey) == ERROR_SUCCESS)
 351     {
 352         HKEY colorKey;
 353
 354         /* read backed-up colors */
 355         if (RegOpenKeyExW (hKey, strColorKey,
 356                            0, KEY_QUERY_VALUE, &colorKey) == ERROR_SUCCESS)
 357         {
 358             int i;
 359             COLORREF sysCols[NUM_SYS_COLORS];
 360             int sysColsIndices[NUM_SYS_COLORS];
 361             int sysColCount = 0;
 362
 363             for (i = 0; i < NUM_SYS_COLORS; i++)
 364             {
 365                 DWORD type;
 366                 char colorStr[13];
 367                 DWORD count = sizeof(colorStr);
 368
 369                 if (RegQueryValueExA (colorKey, SysColorsNames[i], 0,
 370                     &type, (LPBYTE) colorStr, &count) == ERROR_SUCCESS)
 371                 {
 372                     int r, g, b;
 373                     if (sscanf (colorStr, "%d %d %d", &r, &g, &b) == 3)
 374                     {
 375                         sysColsIndices[sysColCount] = i;
 376                         sysCols[sysColCount] = RGB(r, g, b);
 377                         sysColCount++;
 378                     }
 379                 }
 380             }
 381             RegCloseKey (colorKey);
 382
 383             SetSysColors (sysColCount, sysColsIndices, sysCols);
 384         }
 385
 386         /* read backed-up other settings */
 387         while (bsp->spiGet >= 0)
 388         {
 389             DWORD value;
 390             DWORD count = sizeof(value);
 391             DWORD type;
 392
 393             if (RegQueryValueExW (hKey, bsp->keyName, 0,
 394                 &type, (LPBYTE)&value, &count) == ERROR_SUCCESS)
 395             {
 396                 SystemParametersInfoW (bsp->spiSet, 0, (LPVOID)value,
 397                     SPIF_UPDATEINIFILE);
 398             }
 399
 400             bsp++;
 401         }
 402
 403         /* read backed-up non-client metrics */
 404         {
 405             NONCLIENTMETRICSW ncm;
 406             LOGFONTW iconTitleFont;
 407             DWORD count = sizeof(ncm);
 408             DWORD type;
 409
 410             if (RegQueryValueExW (hKey, keyNonClientMetrics, 0,
 411                 &type, (LPBYTE)&ncm, &count) == ERROR_SUCCESS)
 412             {
 413                 SystemParametersInfoW (SPI_SETNONCLIENTMETRICS,
 414                     count, (LPVOID)&ncm, SPIF_UPDATEINIFILE);
 415             }
 416
 417             count = sizeof(iconTitleFont);
 418
 419             if (RegQueryValueExW (hKey, keyIconTitleFont, 0,
 420                 &type, (LPBYTE)&iconTitleFont, &count) == ERROR_SUCCESS)
 421             {
 422                 SystemParametersInfoW (SPI_SETICONTITLELOGFONT,
 423                     count, (LPVOID)&iconTitleFont, SPIF_UPDATEINIFILE);
 424             }
 425         }
 426
 427         RegCloseKey (hKey);
 428     }
 429 }
 430
 431 /* Make system settings persistent, so they're in effect even w/o uxtheme
 432  * loaded.
 433  * For efficiency reasons, only the last SystemParametersInfoW sets
 434  * SPIF_SENDWININICHANGE */
 435 static void UXTHEME_SaveSystemMetrics(void)
 436 {
 437     const struct BackupSysParam* bsp = backupSysParams;
 438     NONCLIENTMETRICSW ncm;
 439     LOGFONTW iconTitleFont;
 440
 441     save_sys_colors (HKEY_CURRENT_USER);
 442
 443     while (bsp->spiGet >= 0)
 444     {
 445         DWORD value;
 446
 447         SystemParametersInfoW (bsp->spiGet, 0, &value, 0);
 448         SystemParametersInfoW (bsp->spiSet, 0, (LPVOID)value,
 449             SPIF_UPDATEINIFILE);
 450
 451         bsp++;
 452     }
 453
 454     memset (&ncm, 0, sizeof (ncm));
 455     ncm.cbSize = sizeof (ncm);
 456     SystemParametersInfoW (SPI_GETNONCLIENTMETRICS,
 457         sizeof (ncm), (LPVOID)&ncm, 0);
 458     SystemParametersInfoW (SPI_SETNONCLIENTMETRICS,
 459         sizeof (ncm), (LPVOID)&ncm, SPIF_UPDATEINIFILE);
 460
 461     memset (&iconTitleFont, 0, sizeof (iconTitleFont));
 462     SystemParametersInfoW (SPI_GETICONTITLELOGFONT,
 463         sizeof (iconTitleFont), (LPVOID)&iconTitleFont, 0);
 464     SystemParametersInfoW (SPI_SETICONTITLELOGFONT,
 465         sizeof (iconTitleFont), (LPVOID)&iconTitleFont,
 466         SPIF_UPDATEINIFILE | SPIF_SENDCHANGE);
 467 }
 468
 469 /***********************************************************************
 470  *      UXTHEME_SetActiveTheme
 471  *
 472  * Change the current active theme
 473  */
 474 static HRESULT UXTHEME_SetActiveTheme(PTHEME_FILE tf)
 475 {
 476     HKEY hKey;
 477     WCHAR tmp[2];
 478     HRESULT hr;
 479
 480     if(tf && !bThemeActive) UXTHEME_BackupSystemMetrics();
 481     hr = MSSTYLES_SetActiveTheme(tf, TRUE);
 482     if(FAILED(hr))
 483         return hr;
 484     if(tf) {
 485         bThemeActive = TRUE;
 486         lstrcpynW(szCurrentTheme, tf->szThemeFile, sizeof(szCurrentTheme)/sizeof(szCurrentTheme[0]));
 487         lstrcpynW(szCurrentColor, tf->pszSelectedColor, sizeof(szCurrentColor)/sizeof(szCurrentColor[0]));
 488         lstrcpynW(szCurrentSize, tf->pszSelectedSize, sizeof(szCurrentSize)/sizeof(szCurrentSize[0]));
 489     }
 490     else {
 491         UXTHEME_RestoreSystemMetrics();
 492         bThemeActive = FALSE;
 493         szCurrentTheme[0] = '\0';
 494         szCurrentColor[0] = '\0';
 495         szCurrentSize[0] = '\0';
 496     }
 497
 498     TRACE("Writing theme config to registry\n");
 499     if(!RegCreateKeyW(HKEY_CURRENT_USER, szThemeManager, &hKey)) {
 500         tmp[0] = bThemeActive?'1':'0';
 501         tmp[1] = '\0';
 502         RegSetValueExW(hKey, szThemeActive, 0, REG_SZ, (const BYTE*)tmp, sizeof(WCHAR)*2);
 503         if(bThemeActive) {
 504             RegSetValueExW(hKey, szColorName, 0, REG_SZ, (const BYTE*)szCurrentColor,
 505                 (lstrlenW(szCurrentColor)+1)*sizeof(WCHAR));
 506             RegSetValueExW(hKey, szSizeName, 0, REG_SZ, (const BYTE*)szCurrentSize,
 507                 (lstrlenW(szCurrentSize)+1)*sizeof(WCHAR));
 508             RegSetValueExW(hKey, szDllName, 0, REG_SZ, (const BYTE*)szCurrentTheme,
 509                 (lstrlenW(szCurrentTheme)+1)*sizeof(WCHAR));
 510         }
 511         else {
 512             RegDeleteValueW(hKey, szColorName);
 513             RegDeleteValueW(hKey, szSizeName);
 514             RegDeleteValueW(hKey, szDllName);
 515
 516         }
 517         RegCloseKey(hKey);
 518     }
 519     else
 520         TRACE("Failed to open theme registry key\n");
 521
 522     UXTHEME_SaveSystemMetrics ();
 523
 524     return hr;
 525 }
 526
 527 /***********************************************************************
 528  *      UXTHEME_InitSystem
 529  */
 530 void UXTHEME_InitSystem(HINSTANCE hInst)
 531 {
 532     static const WCHAR szWindowTheme[] = {
 533         'u','x','_','t','h','e','m','e','\0'
 534     };
 535     static const WCHAR szSubAppName[] = {
 536         'u','x','_','s','u','b','a','p','p','\0'
 537     };
 538     static const WCHAR szSubIdList[] = {
 539         'u','x','_','s','u','b','i','d','l','s','t','\0'
 540     };
 541     static const WCHAR szDialogThemeEnabled[] = {
 542         'u','x','_','d','i','a','l','o','g','t','h','e','m','e','\0'
 543     };
 544
 545     hDllInst = hInst;
 546
 547     atWindowTheme        = GlobalAddAtomW(szWindowTheme);
 548     atSubAppName         = GlobalAddAtomW(szSubAppName);
 549     atSubIdList          = GlobalAddAtomW(szSubIdList);
 550     atDialogThemeEnabled = GlobalAddAtomW(szDialogThemeEnabled);
 551
 552     UXTHEME_LoadTheme();
 553 }
 554
 555 /***********************************************************************
 556  *      IsAppThemed                                         (UXTHEME.@)
 557  */
 558 BOOL WINAPI IsAppThemed(void)
 559 {
 560     return IsThemeActive();
 561 }
 562
 563 /***********************************************************************
 564  *      IsThemeActive                                       (UXTHEME.@)
 565  */
 566 BOOL WINAPI IsThemeActive(void)
 567 {
 568     TRACE("\n");
 569     return bThemeActive;
 570 }
 571
 572 /***********************************************************************
 573  *      EnableTheming                                       (UXTHEME.@)
 574  *
 575  * NOTES
 576  * This is a global and persistent change
 577  */
 578 HRESULT WINAPI EnableTheming(BOOL fEnable)
 579 {
 580     HKEY hKey;
 581     WCHAR szEnabled[] = {'0','\0'};
 582
 583     TRACE("(%d)\n", fEnable);
 584
 585     if(fEnable != bThemeActive) {
 586         if(fEnable)
 587             UXTHEME_BackupSystemMetrics();
 588         else
 589             UXTHEME_RestoreSystemMetrics();
 590         UXTHEME_SaveSystemMetrics ();
 591         bThemeActive = fEnable;
 592         if(bThemeActive) szEnabled[0] = '1';
 593         if(!RegOpenKeyW(HKEY_CURRENT_USER, szThemeManager, &hKey)) {
 594             RegSetValueExW(hKey, szThemeActive, 0, REG_SZ, (LPBYTE)szEnabled, sizeof(WCHAR));
 595             RegCloseKey(hKey);
 596         }
 597         UXTHEME_broadcast_msg (NULL, WM_THEMECHANGED);
 598     }
 599     return S_OK;
 600 }
 601
 602 /***********************************************************************
 603  *      UXTHEME_SetWindowProperty
 604  *
 605  * I'm using atoms as there may be large numbers of duplicated strings
 606  * and they do the work of keeping memory down as a cause of that quite nicely
 607  */
 608 static HRESULT UXTHEME_SetWindowProperty(HWND hwnd, ATOM aProp, LPCWSTR pszValue)
 609 {
 610     ATOM oldValue = (ATOM)(size_t)RemovePropW(hwnd, (LPCWSTR)MAKEINTATOM(aProp));
 611     if(oldValue)
 612         DeleteAtom(oldValue);
 613     if(pszValue) {
 614         ATOM atValue = AddAtomW(pszValue);
 615         if(!atValue
 616            || !SetPropW(hwnd, (LPCWSTR)MAKEINTATOM(aProp), (LPWSTR)MAKEINTATOM(atValue))) {
 617             HRESULT hr = HRESULT_FROM_WIN32(GetLastError());
 618             if(atValue) DeleteAtom(atValue);
 619             return hr;
 620         }
 621     }
 622     return S_OK;
 623 }
 624
 625 static LPWSTR UXTHEME_GetWindowProperty(HWND hwnd, ATOM aProp, LPWSTR pszBuffer, int dwLen)
 626 {
 627     ATOM atValue = (ATOM)(size_t)GetPropW(hwnd, (LPCWSTR)MAKEINTATOM(aProp));
 628     if(atValue) {
 629         if(GetAtomNameW(atValue, pszBuffer, dwLen))
 630             return pszBuffer;
 631         TRACE("property defined, but unable to get value\n");
 632     }
 633     return NULL;
 634 }
 635
 636 /***********************************************************************
 637  *      OpenThemeData                                       (UXTHEME.@)
 638  */
 639 HTHEME WINAPI OpenThemeData(HWND hwnd, LPCWSTR pszClassList)
 640 {
 641     WCHAR szAppBuff[256];
 642     WCHAR szClassBuff[256];
 643     LPCWSTR pszAppName;
 644     LPCWSTR pszUseClassList;
 645     HTHEME hTheme = NULL;
 646     TRACE("(%p,%s)\n", hwnd, debugstr_w(pszClassList));
 647
 648     if(bThemeActive)
 649     {
 650         pszAppName = UXTHEME_GetWindowProperty(hwnd, atSubAppName, szAppBuff, sizeof(szAppBuff)/sizeof(szAppBuff[0]));
 651         /* If SetWindowTheme was used on the window, that overrides the class list passed to this function */
 652         pszUseClassList = UXTHEME_GetWindowProperty(hwnd, atSubIdList, szClassBuff, sizeof(szClassBuff)/sizeof(szClassBuff[0]));
 653         if(!pszUseClassList)
 654             pszUseClassList = pszClassList;
 655
 656         if (pszUseClassList)
 657             hTheme = MSSTYLES_OpenThemeClass(pszAppName, pszUseClassList);
 658     }
 659     if(IsWindow(hwnd))
 660         SetPropW(hwnd, (LPCWSTR)MAKEINTATOM(atWindowTheme), hTheme);
 661     TRACE(" = %p\n", hTheme);
 662     return hTheme;
 663 }
 664
 665 /***********************************************************************
 666  *      GetWindowTheme                                      (UXTHEME.@)
 667  *
 668  * Retrieve the last theme opened for a window.
 669  *
 670  * PARAMS
 671  *  hwnd  [I] window to retrieve the theme for
 672  *
 673  * RETURNS
 674  *  The most recent theme.
 675  */
 676 HTHEME WINAPI GetWindowTheme(HWND hwnd)
 677 {
 678     TRACE("(%p)\n", hwnd);
 679     return GetPropW(hwnd, (LPCWSTR)MAKEINTATOM(atWindowTheme));
 680 }
 681
 682 /***********************************************************************
 683  *      SetWindowTheme                                      (UXTHEME.@)
 684  *
 685  * Persistent through the life of the window, even after themes change
 686  */
 687 HRESULT WINAPI SetWindowTheme(HWND hwnd, LPCWSTR pszSubAppName,
 688                               LPCWSTR pszSubIdList)
 689 {
 690     HRESULT hr;
 691     TRACE("(%p,%s,%s)\n", hwnd, debugstr_w(pszSubAppName),
 692           debugstr_w(pszSubIdList));
 693     hr = UXTHEME_SetWindowProperty(hwnd, atSubAppName, pszSubAppName);
 694     if(SUCCEEDED(hr))
 695         hr = UXTHEME_SetWindowProperty(hwnd, atSubIdList, pszSubIdList);
 696     if(SUCCEEDED(hr))
 697         UXTHEME_broadcast_msg (hwnd, WM_THEMECHANGED);
 698     return hr;
 699 }
 700
 701 /***********************************************************************
 702  *      GetCurrentThemeName                                 (UXTHEME.@)
 703  */
 704 HRESULT WINAPI GetCurrentThemeName(LPWSTR pszThemeFileName, int dwMaxNameChars,
 705                                    LPWSTR pszColorBuff, int cchMaxColorChars,
 706                                    LPWSTR pszSizeBuff, int cchMaxSizeChars)
 707 {
 708     if(!bThemeActive)
 709         return E_PROP_ID_UNSUPPORTED;
 710     if(pszThemeFileName) lstrcpynW(pszThemeFileName, szCurrentTheme, dwMaxNameChars);
 711     if(pszColorBuff) lstrcpynW(pszColorBuff, szCurrentColor, cchMaxColorChars);
 712     if(pszSizeBuff) lstrcpynW(pszSizeBuff, szCurrentSize, cchMaxSizeChars);
 713     return S_OK;
 714 }
 715
 716 /***********************************************************************
 717  *      GetThemeAppProperties                               (UXTHEME.@)
 718  */
 719 DWORD WINAPI GetThemeAppProperties(void)
 720 {
 721     return dwThemeAppProperties;
 722 }
 723
 724 /***********************************************************************
 725  *      SetThemeAppProperties                               (UXTHEME.@)
 726  */
 727 void WINAPI SetThemeAppProperties(DWORD dwFlags)
 728 {
 729     TRACE("(0x%08x)\n", dwFlags);
 730     dwThemeAppProperties = dwFlags;
 731 }
 732
 733 /***********************************************************************
 734  *      CloseThemeData                                      (UXTHEME.@)
 735  */
 736 HRESULT WINAPI CloseThemeData(HTHEME hTheme)
 737 {
 738     TRACE("(%p)\n", hTheme);
 739     if(!hTheme)
 740         return E_HANDLE;
 741     return MSSTYLES_CloseThemeClass(hTheme);
 742 }
 743
 744 /***********************************************************************
 745  *      HitTestThemeBackground                              (UXTHEME.@)
 746  */
 747 HRESULT WINAPI HitTestThemeBackground(HTHEME hTheme, HDC hdc, int iPartId,
 748                                      int iStateId, DWORD dwOptions,
 749                                      const RECT *pRect, HRGN hrgn,
 750                                      POINT ptTest, WORD *pwHitTestCode)
 751 {
 752     FIXME("%d %d 0x%08x: stub\n", iPartId, iStateId, dwOptions);
 753     if(!hTheme)
 754         return E_HANDLE;
 755     return ERROR_CALL_NOT_IMPLEMENTED;
 756 }
 757
 758 /***********************************************************************
 759  *      IsThemePartDefined                                  (UXTHEME.@)
 760  */
 761 BOOL WINAPI IsThemePartDefined(HTHEME hTheme, int iPartId, int iStateId)
 762 {
 763     TRACE("(%p,%d,%d)\n", hTheme, iPartId, iStateId);
 764     if(!hTheme) {
 765         SetLastError(E_HANDLE);
 766         return FALSE;
 767     }
 768     if(MSSTYLES_FindPartState(hTheme, iPartId, iStateId, NULL))
 769         return TRUE;
 770     return FALSE;
 771 }
 772
 773 /***********************************************************************
 774  *      GetThemeDocumentationProperty                       (UXTHEME.@)
 775  *
 776  * Try and retrieve the documentation property from string resources
 777  * if that fails, get it from the [documentation] section of themes.ini
 778  */
 779 HRESULT WINAPI GetThemeDocumentationProperty(LPCWSTR pszThemeName,
 780                                              LPCWSTR pszPropertyName,
 781                                              LPWSTR pszValueBuff,
 782                                              int cchMaxValChars)
 783 {
 784     const WORD wDocToRes[] = {
 785         TMT_DISPLAYNAME,5000,
 786         TMT_TOOLTIP,5001,
 787         TMT_COMPANY,5002,
 788         TMT_AUTHOR,5003,
 789         TMT_COPYRIGHT,5004,
 790         TMT_URL,5005,
 791         TMT_VERSION,5006,
 792         TMT_DESCRIPTION,5007
 793     };
 794
 795     PTHEME_FILE pt;
 796     HRESULT hr;
 797     unsigned int i;
 798     int iDocId;
 799     TRACE("(%s,%s,%p,%d)\n", debugstr_w(pszThemeName), debugstr_w(pszPropertyName),
 800           pszValueBuff, cchMaxValChars);
 801
 802     hr = MSSTYLES_OpenThemeFile(pszThemeName, NULL, NULL, &pt);
 803     if(FAILED(hr)) return hr;
 804
 805     /* Try to load from string resources */
 806     hr = E_PROP_ID_UNSUPPORTED;
 807     if(MSSTYLES_LookupProperty(pszPropertyName, NULL, &iDocId)) {
 808         for(i=0; i<sizeof(wDocToRes)/sizeof(wDocToRes[0]); i+=2) {
 809             if(wDocToRes[i] == iDocId) {
 810                 if(LoadStringW(pt->hTheme, wDocToRes[i+1], pszValueBuff, cchMaxValChars)) {
 811                     hr = S_OK;
 812                     break;
 813                 }
 814             }
 815         }
 816     }
 817     /* If loading from string resource failed, try getting it from the theme.ini */
 818     if(FAILED(hr)) {
 819         PUXINI_FILE uf = MSSTYLES_GetThemeIni(pt);
 820         if(UXINI_FindSection(uf, szIniDocumentation)) {
 821             LPCWSTR lpValue;
 822             DWORD dwLen;
 823             if(UXINI_FindValue(uf, pszPropertyName, &lpValue, &dwLen)) {
 824                 lstrcpynW(pszValueBuff, lpValue, min(dwLen+1,cchMaxValChars));
 825                 hr = S_OK;
 826             }
 827         }
 828         UXINI_CloseINI(uf);
 829     }
 830
 831     MSSTYLES_CloseThemeFile(pt);
 832     return hr;
 833 }
 834
 835 /**********************************************************************
 836  *      Undocumented functions
 837  */
 838
 839 /**********************************************************************
 840  *      QueryThemeServices                                 (UXTHEME.1)
 841  *
 842  * RETURNS
 843  *     some kind of status flag
 844  */
 845 DWORD WINAPI QueryThemeServices(void)
 846 {
 847     FIXME("stub\n");
 848     return 3; /* This is what is returned under XP in most cases */
 849 }
 850
 851
 852 /**********************************************************************
 853  *      OpenThemeFile                                      (UXTHEME.2)
 854  *
 855  * Opens a theme file, which can be used to change the current theme, etc
 856  *
 857  * PARAMS
 858  *     pszThemeFileName    Path to a msstyles theme file
 859  *     pszColorName        Color defined in the theme, eg. NormalColor
 860  *     pszSizeName         Size defined in the theme, eg. NormalSize
 861  *     hThemeFile          Handle to theme file
 862  *
 863  * RETURNS
 864  *     Success: S_OK
 865  *     Failure: HRESULT error-code
 866  */
 867 HRESULT WINAPI OpenThemeFile(LPCWSTR pszThemeFileName, LPCWSTR pszColorName,
 868                              LPCWSTR pszSizeName, HTHEMEFILE *hThemeFile,
 869                              DWORD unknown)
 870 {
 871     TRACE("(%s,%s,%s,%p,%d)\n", debugstr_w(pszThemeFileName),
 872           debugstr_w(pszColorName), debugstr_w(pszSizeName),
 873           hThemeFile, unknown);
 874     return MSSTYLES_OpenThemeFile(pszThemeFileName, pszColorName, pszSizeName, (PTHEME_FILE*)hThemeFile);
 875 }
 876
 877 /**********************************************************************
 878  *      CloseThemeFile                                     (UXTHEME.3)
 879  *
 880  * Releases theme file handle returned by OpenThemeFile
 881  *
 882  * PARAMS
 883  *     hThemeFile           Handle to theme file
 884  *
 885  * RETURNS
 886  *     Success: S_OK
 887  *     Failure: HRESULT error-code
 888  */
 889 HRESULT WINAPI CloseThemeFile(HTHEMEFILE hThemeFile)
 890 {
 891     TRACE("(%p)\n", hThemeFile);
 892     MSSTYLES_CloseThemeFile(hThemeFile);
 893     return S_OK;
 894 }
 895
 896 /**********************************************************************
 897  *      ApplyTheme                                         (UXTHEME.4)
 898  *
 899  * Set a theme file to be the currently active theme
 900  *
 901  * PARAMS
 902  *     hThemeFile           Handle to theme file
 903  *     unknown              See notes
 904  *     hWnd                 Window requesting the theme change
 905  *
 906  * RETURNS
 907  *     Success: S_OK
 908  *     Failure: HRESULT error-code
 909  *
 910  * NOTES
 911  * I'm not sure what the second parameter is (the datatype is likely wrong), other then this:
 912  * Under XP if I pass
 913  * char b[] = "";
 914  *   the theme is applied with the screen redrawing really badly (flickers)
 915  * char b[] = "\0"; where \0 can be one or more of any character, makes no difference
 916  *   the theme is applied smoothly (screen does not flicker)
 917  * char *b = "\0" or NULL; where \0 can be zero or more of any character, makes no difference
 918  *   the function fails returning invalid parameter...very strange
 919  */
 920 HRESULT WINAPI ApplyTheme(HTHEMEFILE hThemeFile, char *unknown, HWND hWnd)
 921 {
 922     HRESULT hr;
 923     TRACE("(%p,%s,%p)\n", hThemeFile, unknown, hWnd);
 924     hr = UXTHEME_SetActiveTheme(hThemeFile);
 925     UXTHEME_broadcast_msg (NULL, WM_THEMECHANGED);
 926     return hr;
 927 }
 928
 929 /**********************************************************************
 930  *      GetThemeDefaults                                   (UXTHEME.7)
 931  *
 932  * Get the default color & size for a theme
 933  *
 934  * PARAMS
 935  *     pszThemeFileName    Path to a msstyles theme file
 936  *     pszColorName        Buffer to receive the default color name
 937  *     dwColorNameLen      Length, in characters, of color name buffer
 938  *     pszSizeName         Buffer to receive the default size name
 939  *     dwSizeNameLen       Length, in characters, of size name buffer
 940  *
 941  * RETURNS
 942  *     Success: S_OK
 943  *     Failure: HRESULT error-code
 944  */
 945 HRESULT WINAPI GetThemeDefaults(LPCWSTR pszThemeFileName, LPWSTR pszColorName,
 946                                 DWORD dwColorNameLen, LPWSTR pszSizeName,
 947                                 DWORD dwSizeNameLen)
 948 {
 949     PTHEME_FILE pt;
 950     HRESULT hr;
 951     TRACE("(%s,%p,%d,%p,%d)\n", debugstr_w(pszThemeFileName),
 952           pszColorName, dwColorNameLen,
 953           pszSizeName, dwSizeNameLen);
 954
 955     hr = MSSTYLES_OpenThemeFile(pszThemeFileName, NULL, NULL, &pt);
 956     if(FAILED(hr)) return hr;
 957
 958     lstrcpynW(pszColorName, pt->pszSelectedColor, dwColorNameLen);
 959     lstrcpynW(pszSizeName, pt->pszSelectedSize, dwSizeNameLen);
 960
 961     MSSTYLES_CloseThemeFile(pt);
 962     return S_OK;
 963 }
 964
 965 /**********************************************************************
 966  *      EnumThemes                                         (UXTHEME.8)
 967  *
 968  * Enumerate available themes, calls specified EnumThemeProc for each
 969  * theme found. Passes lpData through to callback function.
 970  *
 971  * PARAMS
 972  *     pszThemePath        Path containing themes
 973  *     callback            Called for each theme found in path
 974  *     lpData              Passed through to callback
 975  *
 976  * RETURNS
 977  *     Success: S_OK
 978  *     Failure: HRESULT error-code
 979  */
 980 HRESULT WINAPI EnumThemes(LPCWSTR pszThemePath, EnumThemeProc callback,
 981                           LPVOID lpData)
 982 {
 983     WCHAR szDir[MAX_PATH];
 984     WCHAR szPath[MAX_PATH];
 985     static const WCHAR szStar[] = {'*','.','*','\0'};
 986     static const WCHAR szFormat[] = {'%','s','%','s','\\','%','s','.','m','s','s','t','y','l','e','s','\0'};
 987     static const WCHAR szDisplayName[] = {'d','i','s','p','l','a','y','n','a','m','e','\0'};
 988     static const WCHAR szTooltip[] = {'t','o','o','l','t','i','p','\0'};
 989     WCHAR szName[60];
 990     WCHAR szTip[60];
 991     HANDLE hFind;
 992     WIN32_FIND_DATAW wfd;
 993     HRESULT hr;
 994     size_t pathLen;
 995
 996     TRACE("(%s,%p,%p)\n", debugstr_w(pszThemePath), callback, lpData);
 997
 998     if(!pszThemePath || !callback)
 999         return E_POINTER;
1000
1001     lstrcpyW(szDir, pszThemePath);
1002     pathLen = lstrlenW (szDir);
1003     if ((pathLen > 0) && (pathLen < MAX_PATH-1) && (szDir[pathLen - 1] != '\\'))
1004     {
1005         szDir[pathLen] = '\\';
1006         szDir[pathLen+1] = 0;
1007     }
1008
1009     lstrcpyW(szPath, szDir);
1010     lstrcatW(szPath, szStar);
1011     TRACE("searching %s\n", debugstr_w(szPath));
1012
1013     hFind = FindFirstFileW(szPath, &wfd);
1014     if(hFind != INVALID_HANDLE_VALUE) {
1015         do {
1016             if(wfd.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY
1017                && !(wfd.cFileName[0] == '.' && ((wfd.cFileName[1] == '.' && wfd.cFileName[2] == 0) || wfd.cFileName[1] == 0))) {
1018                 wsprintfW(szPath, szFormat, szDir, wfd.cFileName, wfd.cFileName);
1019
1020                 hr = GetThemeDocumentationProperty(szPath, szDisplayName, szName, sizeof(szName)/sizeof(szName[0]));
1021                 if(SUCCEEDED(hr))
1022                     hr = GetThemeDocumentationProperty(szPath, szTooltip, szTip, sizeof(szTip)/sizeof(szTip[0]));
1023                 if(SUCCEEDED(hr)) {
1024                     TRACE("callback(%s,%s,%s,%p)\n", debugstr_w(szPath), debugstr_w(szName), debugstr_w(szTip), lpData);
1025                     if(!callback(NULL, szPath, szName, szTip, NULL, lpData)) {
1026                         TRACE("callback ended enum\n");
1027                         break;
1028                     }
1029                 }
1030             }
1031         } while(FindNextFileW(hFind, &wfd));
1032         FindClose(hFind);
1033     }
1034     return S_OK;
1035 }
1036
1037
1038 /**********************************************************************
1039  *      EnumThemeColors                                    (UXTHEME.9)
1040  *
1041  * Enumerate theme colors available with a particular size
1042  *
1043  * PARAMS
1044  *     pszThemeFileName    Path to a msstyles theme file
1045  *     pszSizeName         Theme size to enumerate available colors
1046  *                         If NULL the default theme size is used
1047  *     dwColorNum          Color index to retrieve, increment from 0
1048  *     pszColorNames       Output color names
1049  *
1050  * RETURNS
1051  *     S_OK on success
1052  *     E_PROP_ID_UNSUPPORTED when dwColorName does not refer to a color
1053  *          or when pszSizeName does not refer to a valid size
1054  *
1055  * NOTES
1056  * XP fails with E_POINTER when pszColorNames points to a buffer smaller than
1057  * sizeof(THEMENAMES).
1058  *
1059  * Not very efficient that I'm opening & validating the theme every call, but
1060  * this is undocumented and almost never called..
1061  * (and this is how windows works too)
1062  */
1063 HRESULT WINAPI EnumThemeColors(LPWSTR pszThemeFileName, LPWSTR pszSizeName,
1064                                DWORD dwColorNum, PTHEMENAMES pszColorNames)
1065 {
1066     PTHEME_FILE pt;
1067     HRESULT hr;
1068     LPWSTR tmp;
1069     UINT resourceId = dwColorNum + 1000;
1070     TRACE("(%s,%s,%d)\n", debugstr_w(pszThemeFileName),
1071           debugstr_w(pszSizeName), dwColorNum);
1072
1073     hr = MSSTYLES_OpenThemeFile(pszThemeFileName, NULL, pszSizeName, &pt);
1074     if(FAILED(hr)) return hr;
1075
1076     tmp = pt->pszAvailColors;
1077     while(dwColorNum && *tmp) {
1078         dwColorNum--;
1079         tmp += lstrlenW(tmp)+1;
1080     }
1081     if(!dwColorNum && *tmp) {
1082         TRACE("%s\n", debugstr_w(tmp));
1083         lstrcpyW(pszColorNames->szName, tmp);
1084         LoadStringW (pt->hTheme, resourceId,
1085             pszColorNames->szDisplayName,
1086             sizeof (pszColorNames->szDisplayName) / sizeof (WCHAR));
1087         LoadStringW (pt->hTheme, resourceId+1000,
1088             pszColorNames->szTooltip,
1089             sizeof (pszColorNames->szTooltip) / sizeof (WCHAR));
1090     }
1091     else
1092         hr = E_PROP_ID_UNSUPPORTED;
1093
1094     MSSTYLES_CloseThemeFile(pt);
1095     return hr;
1096 }
1097
1098 /**********************************************************************
1099  *      EnumThemeSizes                                     (UXTHEME.10)
1100  *
1101  * Enumerate theme colors available with a particular size
1102  *
1103  * PARAMS
1104  *     pszThemeFileName    Path to a msstyles theme file
1105  *     pszColorName        Theme color to enumerate available sizes
1106  *                         If NULL the default theme color is used
1107  *     dwSizeNum           Size index to retrieve, increment from 0
1108  *     pszSizeNames        Output size names
1109  *
1110  * RETURNS
1111  *     S_OK on success
1112  *     E_PROP_ID_UNSUPPORTED when dwSizeName does not refer to a size
1113  *          or when pszColorName does not refer to a valid color
1114  *
1115  * NOTES
1116  * XP fails with E_POINTER when pszSizeNames points to a buffer smaller than
1117  * sizeof(THEMENAMES).
1118  *
1119  * Not very efficient that I'm opening & validating the theme every call, but
1120  * this is undocumented and almost never called..
1121  * (and this is how windows works too)
1122  */
1123 HRESULT WINAPI EnumThemeSizes(LPWSTR pszThemeFileName, LPWSTR pszColorName,
1124                               DWORD dwSizeNum, PTHEMENAMES pszSizeNames)
1125 {
1126     PTHEME_FILE pt;
1127     HRESULT hr;
1128     LPWSTR tmp;
1129     UINT resourceId = dwSizeNum + 3000;
1130     TRACE("(%s,%s,%d)\n", debugstr_w(pszThemeFileName),
1131           debugstr_w(pszColorName), dwSizeNum);
1132
1133     hr = MSSTYLES_OpenThemeFile(pszThemeFileName, pszColorName, NULL, &pt);
1134     if(FAILED(hr)) return hr;
1135
1136     tmp = pt->pszAvailSizes;
1137     while(dwSizeNum && *tmp) {
1138         dwSizeNum--;
1139         tmp += lstrlenW(tmp)+1;
1140     }
1141     if(!dwSizeNum && *tmp) {
1142         TRACE("%s\n", debugstr_w(tmp));
1143         lstrcpyW(pszSizeNames->szName, tmp);
1144         LoadStringW (pt->hTheme, resourceId,
1145             pszSizeNames->szDisplayName,
1146             sizeof (pszSizeNames->szDisplayName) / sizeof (WCHAR));
1147         LoadStringW (pt->hTheme, resourceId+1000,
1148             pszSizeNames->szTooltip,
1149             sizeof (pszSizeNames->szTooltip) / sizeof (WCHAR));
1150     }
1151     else
1152         hr = E_PROP_ID_UNSUPPORTED;
1153
1154     MSSTYLES_CloseThemeFile(pt);
1155     return hr;
1156 }
1157
1158 /**********************************************************************
1159  *      ParseThemeIniFile                                  (UXTHEME.11)
1160  *
1161  * Enumerate data in a theme INI file.
1162  *
1163  * PARAMS
1164  *     pszIniFileName      Path to a theme ini file
1165  *     pszUnknown          Cannot be NULL, L"" is valid
1166  *     callback            Called for each found entry
1167  *     lpData              Passed through to callback
1168  *
1169  * RETURNS
1170  *     S_OK on success
1171  *     0x800706488 (Unknown property) when enumeration is canceled from callback
1172  *
1173  * NOTES
1174  * When pszUnknown is NULL the callback is never called, the value does not seem to surve
1175  * any other purpose
1176  */
1177 HRESULT WINAPI ParseThemeIniFile(LPCWSTR pszIniFileName, LPWSTR pszUnknown,
1178                                  ParseThemeIniFileProc callback, LPVOID lpData)
1179 {
1180     FIXME("%s %s: stub\n", debugstr_w(pszIniFileName), debugstr_w(pszUnknown));
1181     return ERROR_CALL_NOT_IMPLEMENTED;
1182 }
1183
1184 /**********************************************************************
1185  *      CheckThemeSignature                                (UXTHEME.29)
1186  *
1187  * Validates the signature of a theme file
1188  *
1189  * PARAMS
1190  *     pszIniFileName      Path to a theme file
1191  *
1192  * RETURNS
1193  *     Success: S_OK
1194  *     Failure: HRESULT error-code
1195  */
1196 HRESULT WINAPI CheckThemeSignature(LPCWSTR pszThemeFileName)
1197 {
1198     PTHEME_FILE pt;
1199     HRESULT hr;
1200     TRACE("(%s)\n", debugstr_w(pszThemeFileName));
1201     hr = MSSTYLES_OpenThemeFile(pszThemeFileName, NULL, NULL, &pt);
1202     if(FAILED(hr))
1203         return hr;
1204     MSSTYLES_CloseThemeFile(pt);
1205     return S_OK;
1206 }