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 = 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 = 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     SetLastError(ERROR_SUCCESS);
 570     return bThemeActive;
 571 }
 572
 573 /***********************************************************************
 574  *      EnableTheming                                       (UXTHEME.@)
 575  *
 576  * NOTES
 577  * This is a global and persistent change
 578  */
 579 HRESULT WINAPI EnableTheming(BOOL fEnable)
 580 {
 581     HKEY hKey;
 582     WCHAR szEnabled[] = {'0','\0'};
 583
 584     TRACE("(%d)\n", fEnable);
 585
 586     if(fEnable != bThemeActive) {
 587         if(fEnable)
 588             UXTHEME_BackupSystemMetrics();
 589         else
 590             UXTHEME_RestoreSystemMetrics();
 591         UXTHEME_SaveSystemMetrics ();
 592         bThemeActive = fEnable;
 593         if(bThemeActive) szEnabled[0] = '1';
 594         if(!RegOpenKeyW(HKEY_CURRENT_USER, szThemeManager, &hKey)) {
 595             RegSetValueExW(hKey, szThemeActive, 0, REG_SZ, (LPBYTE)szEnabled, sizeof(WCHAR));
 596             RegCloseKey(hKey);
 597         }
 598         UXTHEME_broadcast_msg (NULL, WM_THEMECHANGED);
 599     }
 600     return S_OK;
 601 }
 602
 603 /***********************************************************************
 604  *      UXTHEME_SetWindowProperty
 605  *
 606  * I'm using atoms as there may be large numbers of duplicated strings
 607  * and they do the work of keeping memory down as a cause of that quite nicely
 608  */
 609 static HRESULT UXTHEME_SetWindowProperty(HWND hwnd, ATOM aProp, LPCWSTR pszValue)
 610 {
 611     ATOM oldValue = (ATOM)(size_t)RemovePropW(hwnd, (LPCWSTR)MAKEINTATOM(aProp));
 612     if(oldValue)
 613         DeleteAtom(oldValue);
 614     if(pszValue) {
 615         ATOM atValue = AddAtomW(pszValue);
 616         if(!atValue
 617            || !SetPropW(hwnd, (LPCWSTR)MAKEINTATOM(aProp), (LPWSTR)MAKEINTATOM(atValue))) {
 618             HRESULT hr = HRESULT_FROM_WIN32(GetLastError());
 619             if(atValue) DeleteAtom(atValue);
 620             return hr;
 621         }
 622     }
 623     return S_OK;
 624 }
 625
 626 static LPWSTR UXTHEME_GetWindowProperty(HWND hwnd, ATOM aProp, LPWSTR pszBuffer, int dwLen)
 627 {
 628     ATOM atValue = (ATOM)(size_t)GetPropW(hwnd, (LPCWSTR)MAKEINTATOM(aProp));
 629     if(atValue) {
 630         if(GetAtomNameW(atValue, pszBuffer, dwLen))
 631             return pszBuffer;
 632         TRACE("property defined, but unable to get value\n");
 633     }
 634     return NULL;
 635 }
 636
 637 /***********************************************************************
 638  *      OpenThemeData                                       (UXTHEME.@)
 639  */
 640 HTHEME WINAPI OpenThemeData(HWND hwnd, LPCWSTR pszClassList)
 641 {
 642     WCHAR szAppBuff[256];
 643     WCHAR szClassBuff[256];
 644     LPCWSTR pszAppName;
 645     LPCWSTR pszUseClassList;
 646     HTHEME hTheme = NULL;
 647     TRACE("(%p,%s)\n", hwnd, debugstr_w(pszClassList));
 648
 649     if(bThemeActive)
 650     {
 651         pszAppName = UXTHEME_GetWindowProperty(hwnd, atSubAppName, szAppBuff, sizeof(szAppBuff)/sizeof(szAppBuff[0]));
 652         /* If SetWindowTheme was used on the window, that overrides the class list passed to this function */
 653         pszUseClassList = UXTHEME_GetWindowProperty(hwnd, atSubIdList, szClassBuff, sizeof(szClassBuff)/sizeof(szClassBuff[0]));
 654         if(!pszUseClassList)
 655             pszUseClassList = pszClassList;
 656
 657         if (pszUseClassList)
 658             hTheme = MSSTYLES_OpenThemeClass(pszAppName, pszUseClassList);
 659     }
 660     if(IsWindow(hwnd))
 661         SetPropW(hwnd, (LPCWSTR)MAKEINTATOM(atWindowTheme), hTheme);
 662     TRACE(" = %p\n", hTheme);
 663     return hTheme;
 664 }
 665
 666 /***********************************************************************
 667  *      GetWindowTheme                                      (UXTHEME.@)
 668  *
 669  * Retrieve the last theme opened for a window.
 670  *
 671  * PARAMS
 672  *  hwnd  [I] window to retrieve the theme for
 673  *
 674  * RETURNS
 675  *  The most recent theme.
 676  */
 677 HTHEME WINAPI GetWindowTheme(HWND hwnd)
 678 {
 679     TRACE("(%p)\n", hwnd);
 680     return GetPropW(hwnd, (LPCWSTR)MAKEINTATOM(atWindowTheme));
 681 }
 682
 683 /***********************************************************************
 684  *      SetWindowTheme                                      (UXTHEME.@)
 685  *
 686  * Persistent through the life of the window, even after themes change
 687  */
 688 HRESULT WINAPI SetWindowTheme(HWND hwnd, LPCWSTR pszSubAppName,
 689                               LPCWSTR pszSubIdList)
 690 {
 691     HRESULT hr;
 692     TRACE("(%p,%s,%s)\n", hwnd, debugstr_w(pszSubAppName),
 693           debugstr_w(pszSubIdList));
 694     hr = UXTHEME_SetWindowProperty(hwnd, atSubAppName, pszSubAppName);
 695     if(SUCCEEDED(hr))
 696         hr = UXTHEME_SetWindowProperty(hwnd, atSubIdList, pszSubIdList);
 697     if(SUCCEEDED(hr))
 698         UXTHEME_broadcast_msg (hwnd, WM_THEMECHANGED);
 699     return hr;
 700 }
 701
 702 /***********************************************************************
 703  *      GetCurrentThemeName                                 (UXTHEME.@)
 704  */
 705 HRESULT WINAPI GetCurrentThemeName(LPWSTR pszThemeFileName, int dwMaxNameChars,
 706                                    LPWSTR pszColorBuff, int cchMaxColorChars,
 707                                    LPWSTR pszSizeBuff, int cchMaxSizeChars)
 708 {
 709     if(!bThemeActive)
 710         return E_PROP_ID_UNSUPPORTED;
 711     if(pszThemeFileName) lstrcpynW(pszThemeFileName, szCurrentTheme, dwMaxNameChars);
 712     if(pszColorBuff) lstrcpynW(pszColorBuff, szCurrentColor, cchMaxColorChars);
 713     if(pszSizeBuff) lstrcpynW(pszSizeBuff, szCurrentSize, cchMaxSizeChars);
 714     return S_OK;
 715 }
 716
 717 /***********************************************************************
 718  *      GetThemeAppProperties                               (UXTHEME.@)
 719  */
 720 DWORD WINAPI GetThemeAppProperties(void)
 721 {
 722     return dwThemeAppProperties;
 723 }
 724
 725 /***********************************************************************
 726  *      SetThemeAppProperties                               (UXTHEME.@)
 727  */
 728 void WINAPI SetThemeAppProperties(DWORD dwFlags)
 729 {
 730     TRACE("(0x%08x)\n", dwFlags);
 731     dwThemeAppProperties = dwFlags;
 732 }
 733
 734 /***********************************************************************
 735  *      CloseThemeData                                      (UXTHEME.@)
 736  */
 737 HRESULT WINAPI CloseThemeData(HTHEME hTheme)
 738 {
 739     TRACE("(%p)\n", hTheme);
 740     if(!hTheme)
 741         return E_HANDLE;
 742     return MSSTYLES_CloseThemeClass(hTheme);
 743 }
 744
 745 /***********************************************************************
 746  *      HitTestThemeBackground                              (UXTHEME.@)
 747  */
 748 HRESULT WINAPI HitTestThemeBackground(HTHEME hTheme, HDC hdc, int iPartId,
 749                                      int iStateId, DWORD dwOptions,
 750                                      const RECT *pRect, HRGN hrgn,
 751                                      POINT ptTest, WORD *pwHitTestCode)
 752 {
 753     FIXME("%d %d 0x%08x: stub\n", iPartId, iStateId, dwOptions);
 754     if(!hTheme)
 755         return E_HANDLE;
 756     return ERROR_CALL_NOT_IMPLEMENTED;
 757 }
 758
 759 /***********************************************************************
 760  *      IsThemePartDefined                                  (UXTHEME.@)
 761  */
 762 BOOL WINAPI IsThemePartDefined(HTHEME hTheme, int iPartId, int iStateId)
 763 {
 764     TRACE("(%p,%d,%d)\n", hTheme, iPartId, iStateId);
 765     if(!hTheme) {
 766         SetLastError(E_HANDLE);
 767         return FALSE;
 768     }
 769     if(MSSTYLES_FindPartState(hTheme, iPartId, iStateId, NULL))
 770         return TRUE;
 771     return FALSE;
 772 }
 773
 774 /***********************************************************************
 775  *      GetThemeDocumentationProperty                       (UXTHEME.@)
 776  *
 777  * Try and retrieve the documentation property from string resources
 778  * if that fails, get it from the [documentation] section of themes.ini
 779  */
 780 HRESULT WINAPI GetThemeDocumentationProperty(LPCWSTR pszThemeName,
 781                                              LPCWSTR pszPropertyName,
 782                                              LPWSTR pszValueBuff,
 783                                              int cchMaxValChars)
 784 {
 785     const WORD wDocToRes[] = {
 786         TMT_DISPLAYNAME,5000,
 787         TMT_TOOLTIP,5001,
 788         TMT_COMPANY,5002,
 789         TMT_AUTHOR,5003,
 790         TMT_COPYRIGHT,5004,
 791         TMT_URL,5005,
 792         TMT_VERSION,5006,
 793         TMT_DESCRIPTION,5007
 794     };
 795
 796     PTHEME_FILE pt;
 797     HRESULT hr;
 798     unsigned int i;
 799     int iDocId;
 800     TRACE("(%s,%s,%p,%d)\n", debugstr_w(pszThemeName), debugstr_w(pszPropertyName),
 801           pszValueBuff, cchMaxValChars);
 802
 803     hr = MSSTYLES_OpenThemeFile(pszThemeName, NULL, NULL, &pt);
 804     if(FAILED(hr)) return hr;
 805
 806     /* Try to load from string resources */
 807     hr = E_PROP_ID_UNSUPPORTED;
 808     if(MSSTYLES_LookupProperty(pszPropertyName, NULL, &iDocId)) {
 809         for(i=0; i<sizeof(wDocToRes)/sizeof(wDocToRes[0]); i+=2) {
 810             if(wDocToRes[i] == iDocId) {
 811                 if(LoadStringW(pt->hTheme, wDocToRes[i+1], pszValueBuff, cchMaxValChars)) {
 812                     hr = S_OK;
 813                     break;
 814                 }
 815             }
 816         }
 817     }
 818     /* If loading from string resource failed, try getting it from the theme.ini */
 819     if(FAILED(hr)) {
 820         PUXINI_FILE uf = MSSTYLES_GetThemeIni(pt);
 821         if(UXINI_FindSection(uf, szIniDocumentation)) {
 822             LPCWSTR lpValue;
 823             DWORD dwLen;
 824             if(UXINI_FindValue(uf, pszPropertyName, &lpValue, &dwLen)) {
 825                 lstrcpynW(pszValueBuff, lpValue, min(dwLen+1,cchMaxValChars));
 826                 hr = S_OK;
 827             }
 828         }
 829         UXINI_CloseINI(uf);
 830     }
 831
 832     MSSTYLES_CloseThemeFile(pt);
 833     return hr;
 834 }
 835
 836 /**********************************************************************
 837  *      Undocumented functions
 838  */
 839
 840 /**********************************************************************
 841  *      QueryThemeServices                                 (UXTHEME.1)
 842  *
 843  * RETURNS
 844  *     some kind of status flag
 845  */
 846 DWORD WINAPI QueryThemeServices(void)
 847 {
 848     FIXME("stub\n");
 849     return 3; /* This is what is returned under XP in most cases */
 850 }
 851
 852
 853 /**********************************************************************
 854  *      OpenThemeFile                                      (UXTHEME.2)
 855  *
 856  * Opens a theme file, which can be used to change the current theme, etc
 857  *
 858  * PARAMS
 859  *     pszThemeFileName    Path to a msstyles theme file
 860  *     pszColorName        Color defined in the theme, eg. NormalColor
 861  *     pszSizeName         Size defined in the theme, eg. NormalSize
 862  *     hThemeFile          Handle to theme file
 863  *
 864  * RETURNS
 865  *     Success: S_OK
 866  *     Failure: HRESULT error-code
 867  */
 868 HRESULT WINAPI OpenThemeFile(LPCWSTR pszThemeFileName, LPCWSTR pszColorName,
 869                              LPCWSTR pszSizeName, HTHEMEFILE *hThemeFile,
 870                              DWORD unknown)
 871 {
 872     TRACE("(%s,%s,%s,%p,%d)\n", debugstr_w(pszThemeFileName),
 873           debugstr_w(pszColorName), debugstr_w(pszSizeName),
 874           hThemeFile, unknown);
 875     return MSSTYLES_OpenThemeFile(pszThemeFileName, pszColorName, pszSizeName, (PTHEME_FILE*)hThemeFile);
 876 }
 877
 878 /**********************************************************************
 879  *      CloseThemeFile                                     (UXTHEME.3)
 880  *
 881  * Releases theme file handle returned by OpenThemeFile
 882  *
 883  * PARAMS
 884  *     hThemeFile           Handle to theme file
 885  *
 886  * RETURNS
 887  *     Success: S_OK
 888  *     Failure: HRESULT error-code
 889  */
 890 HRESULT WINAPI CloseThemeFile(HTHEMEFILE hThemeFile)
 891 {
 892     TRACE("(%p)\n", hThemeFile);
 893     MSSTYLES_CloseThemeFile(hThemeFile);
 894     return S_OK;
 895 }
 896
 897 /**********************************************************************
 898  *      ApplyTheme                                         (UXTHEME.4)
 899  *
 900  * Set a theme file to be the currently active theme
 901  *
 902  * PARAMS
 903  *     hThemeFile           Handle to theme file
 904  *     unknown              See notes
 905  *     hWnd                 Window requesting the theme change
 906  *
 907  * RETURNS
 908  *     Success: S_OK
 909  *     Failure: HRESULT error-code
 910  *
 911  * NOTES
 912  * I'm not sure what the second parameter is (the datatype is likely wrong), other then this:
 913  * Under XP if I pass
 914  * char b[] = "";
 915  *   the theme is applied with the screen redrawing really badly (flickers)
 916  * char b[] = "\0"; where \0 can be one or more of any character, makes no difference
 917  *   the theme is applied smoothly (screen does not flicker)
 918  * char *b = "\0" or NULL; where \0 can be zero or more of any character, makes no difference
 919  *   the function fails returning invalid parameter... very strange
 920  */
 921 HRESULT WINAPI ApplyTheme(HTHEMEFILE hThemeFile, char *unknown, HWND hWnd)
 922 {
 923     HRESULT hr;
 924     TRACE("(%p,%s,%p)\n", hThemeFile, unknown, hWnd);
 925     hr = UXTHEME_SetActiveTheme(hThemeFile);
 926     UXTHEME_broadcast_msg (NULL, WM_THEMECHANGED);
 927     return hr;
 928 }
 929
 930 /**********************************************************************
 931  *      GetThemeDefaults                                   (UXTHEME.7)
 932  *
 933  * Get the default color & size for a theme
 934  *
 935  * PARAMS
 936  *     pszThemeFileName    Path to a msstyles theme file
 937  *     pszColorName        Buffer to receive the default color name
 938  *     dwColorNameLen      Length, in characters, of color name buffer
 939  *     pszSizeName         Buffer to receive the default size name
 940  *     dwSizeNameLen       Length, in characters, of size name buffer
 941  *
 942  * RETURNS
 943  *     Success: S_OK
 944  *     Failure: HRESULT error-code
 945  */
 946 HRESULT WINAPI GetThemeDefaults(LPCWSTR pszThemeFileName, LPWSTR pszColorName,
 947                                 DWORD dwColorNameLen, LPWSTR pszSizeName,
 948                                 DWORD dwSizeNameLen)
 949 {
 950     PTHEME_FILE pt;
 951     HRESULT hr;
 952     TRACE("(%s,%p,%d,%p,%d)\n", debugstr_w(pszThemeFileName),
 953           pszColorName, dwColorNameLen,
 954           pszSizeName, dwSizeNameLen);
 955
 956     hr = MSSTYLES_OpenThemeFile(pszThemeFileName, NULL, NULL, &pt);
 957     if(FAILED(hr)) return hr;
 958
 959     lstrcpynW(pszColorName, pt->pszSelectedColor, dwColorNameLen);
 960     lstrcpynW(pszSizeName, pt->pszSelectedSize, dwSizeNameLen);
 961
 962     MSSTYLES_CloseThemeFile(pt);
 963     return S_OK;
 964 }
 965
 966 /**********************************************************************
 967  *      EnumThemes                                         (UXTHEME.8)
 968  *
 969  * Enumerate available themes, calls specified EnumThemeProc for each
 970  * theme found. Passes lpData through to callback function.
 971  *
 972  * PARAMS
 973  *     pszThemePath        Path containing themes
 974  *     callback            Called for each theme found in path
 975  *     lpData              Passed through to callback
 976  *
 977  * RETURNS
 978  *     Success: S_OK
 979  *     Failure: HRESULT error-code
 980  */
 981 HRESULT WINAPI EnumThemes(LPCWSTR pszThemePath, EnumThemeProc callback,
 982                           LPVOID lpData)
 983 {
 984     WCHAR szDir[MAX_PATH];
 985     WCHAR szPath[MAX_PATH];
 986     static const WCHAR szStar[] = {'*','.','*','\0'};
 987     static const WCHAR szFormat[] = {'%','s','%','s','\\','%','s','.','m','s','s','t','y','l','e','s','\0'};
 988     static const WCHAR szDisplayName[] = {'d','i','s','p','l','a','y','n','a','m','e','\0'};
 989     static const WCHAR szTooltip[] = {'t','o','o','l','t','i','p','\0'};
 990     WCHAR szName[60];
 991     WCHAR szTip[60];
 992     HANDLE hFind;
 993     WIN32_FIND_DATAW wfd;
 994     HRESULT hr;
 995     size_t pathLen;
 996
 997     TRACE("(%s,%p,%p)\n", debugstr_w(pszThemePath), callback, lpData);
 998
 999     if(!pszThemePath || !callback)
1000         return E_POINTER;
1001
1002     lstrcpyW(szDir, pszThemePath);
1003     pathLen = lstrlenW (szDir);
1004     if ((pathLen > 0) && (pathLen < MAX_PATH-1) && (szDir[pathLen - 1] != '\\'))
1005     {
1006         szDir[pathLen] = '\\';
1007         szDir[pathLen+1] = 0;
1008     }
1009
1010     lstrcpyW(szPath, szDir);
1011     lstrcatW(szPath, szStar);
1012     TRACE("searching %s\n", debugstr_w(szPath));
1013
1014     hFind = FindFirstFileW(szPath, &wfd);
1015     if(hFind != INVALID_HANDLE_VALUE) {
1016         do {
1017             if(wfd.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY
1018                && !(wfd.cFileName[0] == '.' && ((wfd.cFileName[1] == '.' && wfd.cFileName[2] == 0) || wfd.cFileName[1] == 0))) {
1019                 wsprintfW(szPath, szFormat, szDir, wfd.cFileName, wfd.cFileName);
1020
1021                 hr = GetThemeDocumentationProperty(szPath, szDisplayName, szName, sizeof(szName)/sizeof(szName[0]));
1022                 if(SUCCEEDED(hr))
1023                     hr = GetThemeDocumentationProperty(szPath, szTooltip, szTip, sizeof(szTip)/sizeof(szTip[0]));
1024                 if(SUCCEEDED(hr)) {
1025                     TRACE("callback(%s,%s,%s,%p)\n", debugstr_w(szPath), debugstr_w(szName), debugstr_w(szTip), lpData);
1026                     if(!callback(NULL, szPath, szName, szTip, NULL, lpData)) {
1027                         TRACE("callback ended enum\n");
1028                         break;
1029                     }
1030                 }
1031             }
1032         } while(FindNextFileW(hFind, &wfd));
1033         FindClose(hFind);
1034     }
1035     return S_OK;
1036 }
1037
1038
1039 /**********************************************************************
1040  *      EnumThemeColors                                    (UXTHEME.9)
1041  *
1042  * Enumerate theme colors available with a particular size
1043  *
1044  * PARAMS
1045  *     pszThemeFileName    Path to a msstyles theme file
1046  *     pszSizeName         Theme size to enumerate available colors
1047  *                         If NULL the default theme size is used
1048  *     dwColorNum          Color index to retrieve, increment from 0
1049  *     pszColorNames       Output color names
1050  *
1051  * RETURNS
1052  *     S_OK on success
1053  *     E_PROP_ID_UNSUPPORTED when dwColorName does not refer to a color
1054  *          or when pszSizeName does not refer to a valid size
1055  *
1056  * NOTES
1057  * XP fails with E_POINTER when pszColorNames points to a buffer smaller than
1058  * sizeof(THEMENAMES).
1059  *
1060  * Not very efficient that I'm opening & validating the theme every call, but
1061  * this is undocumented and almost never called..
1062  * (and this is how windows works too)
1063  */
1064 HRESULT WINAPI EnumThemeColors(LPWSTR pszThemeFileName, LPWSTR pszSizeName,
1065                                DWORD dwColorNum, PTHEMENAMES pszColorNames)
1066 {
1067     PTHEME_FILE pt;
1068     HRESULT hr;
1069     LPWSTR tmp;
1070     UINT resourceId = dwColorNum + 1000;
1071     TRACE("(%s,%s,%d)\n", debugstr_w(pszThemeFileName),
1072           debugstr_w(pszSizeName), dwColorNum);
1073
1074     hr = MSSTYLES_OpenThemeFile(pszThemeFileName, NULL, pszSizeName, &pt);
1075     if(FAILED(hr)) return hr;
1076
1077     tmp = pt->pszAvailColors;
1078     while(dwColorNum && *tmp) {
1079         dwColorNum--;
1080         tmp += lstrlenW(tmp)+1;
1081     }
1082     if(!dwColorNum && *tmp) {
1083         TRACE("%s\n", debugstr_w(tmp));
1084         lstrcpyW(pszColorNames->szName, tmp);
1085         LoadStringW (pt->hTheme, resourceId,
1086             pszColorNames->szDisplayName,
1087             sizeof (pszColorNames->szDisplayName) / sizeof (WCHAR));
1088         LoadStringW (pt->hTheme, resourceId+1000,
1089             pszColorNames->szTooltip,
1090             sizeof (pszColorNames->szTooltip) / sizeof (WCHAR));
1091     }
1092     else
1093         hr = E_PROP_ID_UNSUPPORTED;
1094
1095     MSSTYLES_CloseThemeFile(pt);
1096     return hr;
1097 }
1098
1099 /**********************************************************************
1100  *      EnumThemeSizes                                     (UXTHEME.10)
1101  *
1102  * Enumerate theme colors available with a particular size
1103  *
1104  * PARAMS
1105  *     pszThemeFileName    Path to a msstyles theme file
1106  *     pszColorName        Theme color to enumerate available sizes
1107  *                         If NULL the default theme color is used
1108  *     dwSizeNum           Size index to retrieve, increment from 0
1109  *     pszSizeNames        Output size names
1110  *
1111  * RETURNS
1112  *     S_OK on success
1113  *     E_PROP_ID_UNSUPPORTED when dwSizeName does not refer to a size
1114  *          or when pszColorName does not refer to a valid color
1115  *
1116  * NOTES
1117  * XP fails with E_POINTER when pszSizeNames points to a buffer smaller than
1118  * sizeof(THEMENAMES).
1119  *
1120  * Not very efficient that I'm opening & validating the theme every call, but
1121  * this is undocumented and almost never called..
1122  * (and this is how windows works too)
1123  */
1124 HRESULT WINAPI EnumThemeSizes(LPWSTR pszThemeFileName, LPWSTR pszColorName,
1125                               DWORD dwSizeNum, PTHEMENAMES pszSizeNames)
1126 {
1127     PTHEME_FILE pt;
1128     HRESULT hr;
1129     LPWSTR tmp;
1130     UINT resourceId = dwSizeNum + 3000;
1131     TRACE("(%s,%s,%d)\n", debugstr_w(pszThemeFileName),
1132           debugstr_w(pszColorName), dwSizeNum);
1133
1134     hr = MSSTYLES_OpenThemeFile(pszThemeFileName, pszColorName, NULL, &pt);
1135     if(FAILED(hr)) return hr;
1136
1137     tmp = pt->pszAvailSizes;
1138     while(dwSizeNum && *tmp) {
1139         dwSizeNum--;
1140         tmp += lstrlenW(tmp)+1;
1141     }
1142     if(!dwSizeNum && *tmp) {
1143         TRACE("%s\n", debugstr_w(tmp));
1144         lstrcpyW(pszSizeNames->szName, tmp);
1145         LoadStringW (pt->hTheme, resourceId,
1146             pszSizeNames->szDisplayName,
1147             sizeof (pszSizeNames->szDisplayName) / sizeof (WCHAR));
1148         LoadStringW (pt->hTheme, resourceId+1000,
1149             pszSizeNames->szTooltip,
1150             sizeof (pszSizeNames->szTooltip) / sizeof (WCHAR));
1151     }
1152     else
1153         hr = E_PROP_ID_UNSUPPORTED;
1154
1155     MSSTYLES_CloseThemeFile(pt);
1156     return hr;
1157 }
1158
1159 /**********************************************************************
1160  *      ParseThemeIniFile                                  (UXTHEME.11)
1161  *
1162  * Enumerate data in a theme INI file.
1163  *
1164  * PARAMS
1165  *     pszIniFileName      Path to a theme ini file
1166  *     pszUnknown          Cannot be NULL, L"" is valid
1167  *     callback            Called for each found entry
1168  *     lpData              Passed through to callback
1169  *
1170  * RETURNS
1171  *     S_OK on success
1172  *     0x800706488 (Unknown property) when enumeration is canceled from callback
1173  *
1174  * NOTES
1175  * When pszUnknown is NULL the callback is never called, the value does not seem to serve
1176  * any other purpose
1177  */
1178 HRESULT WINAPI ParseThemeIniFile(LPCWSTR pszIniFileName, LPWSTR pszUnknown,
1179                                  ParseThemeIniFileProc callback, LPVOID lpData)
1180 {
1181     FIXME("%s %s: stub\n", debugstr_w(pszIniFileName), debugstr_w(pszUnknown));
1182     return ERROR_CALL_NOT_IMPLEMENTED;
1183 }
1184
1185 /**********************************************************************
1186  *      CheckThemeSignature                                (UXTHEME.29)
1187  *
1188  * Validates the signature of a theme file
1189  *
1190  * PARAMS
1191  *     pszIniFileName      Path to a theme file
1192  *
1193  * RETURNS
1194  *     Success: S_OK
1195  *     Failure: HRESULT error-code
1196  */
1197 HRESULT WINAPI CheckThemeSignature(LPCWSTR pszThemeFileName)
1198 {
1199     PTHEME_FILE pt;
1200     HRESULT hr;
1201     TRACE("(%s)\n", debugstr_w(pszThemeFileName));
1202     hr = MSSTYLES_OpenThemeFile(pszThemeFileName, NULL, NULL, &pt);
1203     if(FAILED(hr))
1204         return hr;
1205     MSSTYLES_CloseThemeFile(pt);
1206     return S_OK;
1207 }