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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  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 "winuser.h"
  29 #include "wingdi.h"
  30 #include "winreg.h"
  31 #include "uxtheme.h"
  32 #include "tmschema.h"
  33
  34 #include "uxthemedll.h"
  35 #include "msstyles.h"
  36
  37 #include "wine/debug.h"
  38
  39 WINE_DEFAULT_DEBUG_CHANNEL(uxtheme);
  40
  41 /***********************************************************************
  42  * Defines and global variables
  43  */
  44
  45 static const WCHAR szThemeManager[] = {
  46     'S','o','f','t','w','a','r','e','\\',
  47     'M','i','c','r','o','s','o','f','t','\\',
  48     'W','i','n','d','o','w','s','\\',
  49     'C','u','r','r','e','n','t','V','e','r','s','i','o','n','\\',
  50     'T','h','e','m','e','M','a','n','a','g','e','r','\0'
  51 };
  52 static const WCHAR szThemeActive[] = {'T','h','e','m','e','A','c','t','i','v','e','\0'};
  53 static const WCHAR szSizeName[] = {'S','i','z','e','N','a','m','e','\0'};
  54 static const WCHAR szColorName[] = {'C','o','l','o','r','N','a','m','e','\0'};
  55 static const WCHAR szDllName[] = {'D','l','l','N','a','m','e','\0'};
  56
  57 static const WCHAR szIniDocumentation[] = {'d','o','c','u','m','e','n','t','a','t','i','o','n','\0'};
  58
  59 HINSTANCE hDllInst;
  60
  61 DWORD dwThemeAppProperties = STAP_ALLOW_NONCLIENT | STAP_ALLOW_CONTROLS;
  62 ATOM atWindowTheme;
  63 ATOM atSubAppName;
  64 ATOM atSubIdList;
  65 ATOM atDialogThemeEnabled;
  66
  67 BOOL bThemeActive = FALSE;
  68 WCHAR szCurrentTheme[MAX_PATH];
  69 WCHAR szCurrentColor[64];
  70 WCHAR szCurrentSize[64];
  71
  72 /***********************************************************************/
  73
  74 static BOOL CALLBACK UXTHEME_broadcast_msg_enumchild (HWND hWnd, LPARAM msg)
  75 {
  76     PostMessageW(hWnd, msg, 0, 0);
  77     return TRUE;
  78 }
  79
  80 /* Broadcast a message to *all* windows, including children */
  81 static BOOL CALLBACK UXTHEME_broadcast_msg (HWND hWnd, LPARAM msg)
  82 {
  83     if (hWnd == NULL)
  84     {
  85         EnumWindows (UXTHEME_broadcast_msg, msg);
  86     }
  87     else
  88     {
  89         PostMessageW(hWnd, msg, 0, 0);
  90         EnumChildWindows (hWnd, UXTHEME_broadcast_msg_enumchild, msg);
  91     }
  92     return TRUE;
  93 }
  94
  95 /* At the end of the day this is a subset of what SHRegGetPath() does - copied
  96  * here to avoid linking against shlwapi. */
  97 static DWORD query_reg_path (HKEY hKey, LPCWSTR lpszValue,
  98                              LPVOID pvData)
  99 {
 100   DWORD dwRet, dwType, dwUnExpDataLen = MAX_PATH, dwExpDataLen;
 101
 102   TRACE("(hkey=%p,%s,%p)\n", hKey, debugstr_w(lpszValue),
 103         pvData);
 104
 105   dwRet = RegQueryValueExW(hKey, lpszValue, 0, &dwType, pvData, &dwUnExpDataLen);
 106   if (dwRet!=ERROR_SUCCESS && dwRet!=ERROR_MORE_DATA)
 107       return dwRet;
 108
 109   if (dwType == REG_EXPAND_SZ)
 110   {
 111     DWORD nBytesToAlloc;
 112
 113     /* Expand type REG_EXPAND_SZ into REG_SZ */
 114     LPWSTR szData;
 115
 116     /* If the caller didn't supply a buffer or the buffer is too small we have
 117      * to allocate our own
 118      */
 119     if (dwRet == ERROR_MORE_DATA)
 120     {
 121       WCHAR cNull = '\0';
 122       nBytesToAlloc = dwUnExpDataLen;
 123
 124       szData = (LPWSTR) LocalAlloc(LMEM_ZEROINIT, nBytesToAlloc);
 125       RegQueryValueExW (hKey, lpszValue, 0, NULL, (LPBYTE)szData, &nBytesToAlloc);
 126       dwExpDataLen = ExpandEnvironmentStringsW(szData, &cNull, 1);
 127       dwUnExpDataLen = max(nBytesToAlloc, dwExpDataLen);
 128       LocalFree((HLOCAL) szData);
 129     }
 130     else
 131     {
 132       nBytesToAlloc = (lstrlenW(pvData) + 1) * sizeof(WCHAR);
 133       szData = (LPWSTR) LocalAlloc(LMEM_ZEROINIT, nBytesToAlloc );
 134       lstrcpyW(szData, pvData);
 135       dwExpDataLen = ExpandEnvironmentStringsW(szData, pvData, MAX_PATH );
 136       if (dwExpDataLen > MAX_PATH) dwRet = ERROR_MORE_DATA;
 137       dwUnExpDataLen = max(nBytesToAlloc, dwExpDataLen);
 138       LocalFree((HLOCAL) szData);
 139     }
 140   }
 141
 142   RegCloseKey(hKey);
 143   return dwRet;
 144 }
 145
 146 /***********************************************************************
 147  *      UXTHEME_LoadTheme
 148  *
 149  * Set the current active theme from the registry
 150  */
 151 static void UXTHEME_LoadTheme(void)
 152 {
 153     HKEY hKey;
 154     DWORD buffsize;
 155     HRESULT hr;
 156     WCHAR tmp[10];
 157     PTHEME_FILE pt;
 158
 159     /* Get current theme configuration */
 160     if(!RegOpenKeyW(HKEY_CURRENT_USER, szThemeManager, &hKey)) {
 161         TRACE("Loading theme config\n");
 162         buffsize = sizeof(tmp)/sizeof(tmp[0]);
 163         if(!RegQueryValueExW(hKey, szThemeActive, NULL, NULL, (LPBYTE)tmp, &buffsize)) {
 164             bThemeActive = (tmp[0] != '0');
 165         }
 166         else {
 167             bThemeActive = FALSE;
 168             TRACE("Failed to get ThemeActive: %ld\n", GetLastError());
 169         }
 170         buffsize = sizeof(szCurrentColor)/sizeof(szCurrentColor[0]);
 171         if(RegQueryValueExW(hKey, szColorName, NULL, NULL, (LPBYTE)szCurrentColor, &buffsize))
 172             szCurrentColor[0] = '\0';
 173         buffsize = sizeof(szCurrentSize)/sizeof(szCurrentSize[0]);
 174         if(RegQueryValueExW(hKey, szSizeName, NULL, NULL, (LPBYTE)szCurrentSize, &buffsize))
 175             szCurrentSize[0] = '\0';
 176         if (query_reg_path (hKey, szDllName, szCurrentTheme))
 177             szCurrentTheme[0] = '\0';
 178         RegCloseKey(hKey);
 179     }
 180     else
 181         TRACE("Failed to open theme registry key\n");
 182
 183     if(bThemeActive) {
 184         /* Make sure the theme requested is actually valid */
 185         hr = MSSTYLES_OpenThemeFile(szCurrentTheme,
 186                                     szCurrentColor[0]?szCurrentColor:NULL,
 187                                     szCurrentSize[0]?szCurrentSize:NULL,
 188                                     &pt);
 189         if(FAILED(hr)) {
 190             bThemeActive = FALSE;
 191             szCurrentTheme[0] = '\0';
 192             szCurrentColor[0] = '\0';
 193             szCurrentSize[0] = '\0';
 194         }
 195         else {
 196             /* Make sure the global color & size match the theme */
 197             lstrcpynW(szCurrentColor, pt->pszSelectedColor, sizeof(szCurrentColor)/sizeof(szCurrentColor[0]));
 198             lstrcpynW(szCurrentSize, pt->pszSelectedSize, sizeof(szCurrentSize)/sizeof(szCurrentSize[0]));
 199
 200             MSSTYLES_SetActiveTheme(pt, FALSE);
 201             TRACE("Theme active: %s %s %s\n", debugstr_w(szCurrentTheme),
 202                 debugstr_w(szCurrentColor), debugstr_w(szCurrentSize));
 203             MSSTYLES_CloseThemeFile(pt);
 204         }
 205     }
 206     if(!bThemeActive) {
 207         MSSTYLES_SetActiveTheme(NULL, FALSE);
 208         TRACE("Themeing not active\n");
 209     }
 210 }
 211
 212 /***********************************************************************/
 213
 214 static const char * const SysColorsNames[] =
 215 {
 216     "Scrollbar",                /* COLOR_SCROLLBAR */
 217     "Background",               /* COLOR_BACKGROUND */
 218     "ActiveTitle",              /* COLOR_ACTIVECAPTION */
 219     "InactiveTitle",            /* COLOR_INACTIVECAPTION */
 220     "Menu",                     /* COLOR_MENU */
 221     "Window",                   /* COLOR_WINDOW */
 222     "WindowFrame",              /* COLOR_WINDOWFRAME */
 223     "MenuText",                 /* COLOR_MENUTEXT */
 224     "WindowText",               /* COLOR_WINDOWTEXT */
 225     "TitleText",                /* COLOR_CAPTIONTEXT */
 226     "ActiveBorder",             /* COLOR_ACTIVEBORDER */
 227     "InactiveBorder",           /* COLOR_INACTIVEBORDER */
 228     "AppWorkSpace",             /* COLOR_APPWORKSPACE */
 229     "Hilight",                  /* COLOR_HIGHLIGHT */
 230     "HilightText",              /* COLOR_HIGHLIGHTTEXT */
 231     "ButtonFace",               /* COLOR_BTNFACE */
 232     "ButtonShadow",             /* COLOR_BTNSHADOW */
 233     "GrayText",                 /* COLOR_GRAYTEXT */
 234     "ButtonText",               /* COLOR_BTNTEXT */
 235     "InactiveTitleText",        /* COLOR_INACTIVECAPTIONTEXT */
 236     "ButtonHilight",            /* COLOR_BTNHIGHLIGHT */
 237     "ButtonDkShadow",           /* COLOR_3DDKSHADOW */
 238     "ButtonLight",              /* COLOR_3DLIGHT */
 239     "InfoText",                 /* COLOR_INFOTEXT */
 240     "InfoWindow",               /* COLOR_INFOBK */
 241     "ButtonAlternateFace",      /* COLOR_ALTERNATEBTNFACE */
 242     "HotTrackingColor",         /* COLOR_HOTLIGHT */
 243     "GradientActiveTitle",      /* COLOR_GRADIENTACTIVECAPTION */
 244     "GradientInactiveTitle",    /* COLOR_GRADIENTINACTIVECAPTION */
 245     "MenuHilight",              /* COLOR_MENUHILIGHT */
 246     "MenuBar",                  /* COLOR_MENUBAR */
 247 };
 248 static const WCHAR strColorKey[] =
 249     { 'C','o','n','t','r','o','l',' ','P','a','n','e','l','\\',
 250       'C','o','l','o','r','s',0 };
 251 static const WCHAR keyFlatMenus[] = { 'F','l','a','t','M','e','n','u', 0};
 252
 253 static const struct BackupSysParam
 254 {
 255     int spiGet, spiSet;
 256     const WCHAR* keyName;
 257 } backupSysParams[] =
 258 {
 259     {SPI_GETFLATMENU, SPI_SETFLATMENU, keyFlatMenus},
 260     {-1, -1, 0}
 261 };
 262
 263 #define NUM_SYS_COLORS     (COLOR_MENUBAR+1)
 264
 265 static void save_sys_colors (HKEY baseKey)
 266 {
 267     char colorStr[13];
 268     HKEY hKey;
 269     int i;
 270
 271     if (RegCreateKeyExW( baseKey, strColorKey,
 272                          0, 0, 0, KEY_ALL_ACCESS,
 273                          0, &hKey, 0 ) == ERROR_SUCCESS)
 274     {
 275         for (i = 0; i < NUM_SYS_COLORS; i++)
 276         {
 277             COLORREF col = GetSysColor (i);
 278
 279             sprintf (colorStr, "%d %d %d",
 280                 GetRValue (col), GetGValue (col), GetBValue (col));
 281
 282             RegSetValueExA (hKey, SysColorsNames[i], 0, REG_SZ,
 283                 (BYTE*)colorStr, strlen (colorStr)+1);
 284         }
 285         RegCloseKey (hKey);
 286     }
 287 }
 288
 289 /* Before activating a theme, query current system colors, certain settings
 290  * and backup them in the registry, so they can be restored when the theme
 291  * is deactivated */
 292 static void UXTHEME_BackupSystemMetrics(void)
 293 {
 294     HKEY hKey;
 295     const struct BackupSysParam* bsp = backupSysParams;
 296
 297     if (RegCreateKeyExW( HKEY_CURRENT_USER, szThemeManager,
 298                          0, 0, 0, KEY_ALL_ACCESS,
 299                          0, &hKey, 0) == ERROR_SUCCESS)
 300     {
 301         save_sys_colors (hKey);
 302
 303         while (bsp->spiGet >= 0)
 304         {
 305             DWORD value;
 306
 307             SystemParametersInfoW (bsp->spiGet, 0, &value, 0);
 308             RegSetValueExW (hKey, bsp->keyName, 0, REG_DWORD,
 309                 (LPBYTE)&value, sizeof (value));
 310
 311             bsp++;
 312         }
 313
 314         RegCloseKey (hKey);
 315     }
 316 }
 317
 318 /* Read back old settings after a theme was deactivated */
 319 static void UXTHEME_RestoreSystemMetrics(void)
 320 {
 321     HKEY hKey;
 322     const struct BackupSysParam* bsp = backupSysParams;
 323
 324     if (RegOpenKeyExW (HKEY_CURRENT_USER, szThemeManager,
 325                        0, KEY_QUERY_VALUE, &hKey) == ERROR_SUCCESS)
 326     {
 327         HKEY colorKey;
 328
 329         /* read backed-up colors */
 330         if (RegOpenKeyExW (hKey, strColorKey,
 331                            0, KEY_QUERY_VALUE, &colorKey) == ERROR_SUCCESS)
 332         {
 333             int i;
 334             COLORREF sysCols[NUM_SYS_COLORS];
 335             int sysColsIndices[NUM_SYS_COLORS];
 336             int sysColCount = 0;
 337
 338             for (i = 0; i < NUM_SYS_COLORS; i++)
 339             {
 340                 DWORD type;
 341                 char colorStr[13];
 342                 DWORD count = sizeof(colorStr);
 343
 344                 if (RegQueryValueExA (colorKey, SysColorsNames[i], 0,
 345                     &type, (LPBYTE) colorStr, &count) == ERROR_SUCCESS)
 346                 {
 347                     int r, g, b;
 348                     if (sscanf (colorStr, "%d %d %d", &r, &g, &b) == 3)
 349                     {
 350                         sysColsIndices[sysColCount] = i;
 351                         sysCols[sysColCount] = RGB(r, g, b);
 352                         sysColCount++;
 353                     }
 354                 }
 355             }
 356             RegCloseKey (colorKey);
 357
 358             SetSysColors (sysColCount, sysColsIndices, sysCols);
 359         }
 360
 361         /* read backed-up other settings */
 362         while (bsp->spiGet >= 0)
 363         {
 364             DWORD value;
 365             DWORD count = sizeof(value);
 366             DWORD type;
 367
 368             if (RegQueryValueExW (hKey, bsp->keyName, 0,
 369                 &type, (LPBYTE)&value, &count) == ERROR_SUCCESS)
 370             {
 371                 SystemParametersInfoW (bsp->spiSet, 0, (LPVOID)value,
 372                     SPIF_UPDATEINIFILE);
 373             }
 374
 375             bsp++;
 376         }
 377
 378
 379         RegCloseKey (hKey);
 380     }
 381 }
 382
 383 /* Make system settings persistent, so they're in effect even w/o uxtheme
 384  * loaded */
 385 static void UXTHEME_SaveSystemMetrics(void)
 386 {
 387     const struct BackupSysParam* bsp = backupSysParams;
 388
 389     save_sys_colors (HKEY_CURRENT_USER);
 390
 391     while (bsp->spiGet >= 0)
 392     {
 393         DWORD value;
 394
 395         SystemParametersInfoW (bsp->spiGet, 0, &value, 0);
 396         SystemParametersInfoW (bsp->spiSet, 0, (LPVOID)value,
 397             SPIF_UPDATEINIFILE);
 398
 399         bsp++;
 400     }
 401
 402 }
 403
 404 /***********************************************************************
 405  *      UXTHEME_SetActiveTheme
 406  *
 407  * Change the current active theme
 408  */
 409 HRESULT UXTHEME_SetActiveTheme(PTHEME_FILE tf)
 410 {
 411     HKEY hKey;
 412     WCHAR tmp[2];
 413     HRESULT hr;
 414
 415     if(tf) UXTHEME_BackupSystemMetrics();
 416     hr = MSSTYLES_SetActiveTheme(tf, TRUE);
 417     if(FAILED(hr))
 418         return hr;
 419     if(tf) {
 420         bThemeActive = TRUE;
 421         lstrcpynW(szCurrentTheme, tf->szThemeFile, sizeof(szCurrentTheme)/sizeof(szCurrentTheme[0]));
 422         lstrcpynW(szCurrentColor, tf->pszSelectedColor, sizeof(szCurrentColor)/sizeof(szCurrentColor[0]));
 423         lstrcpynW(szCurrentSize, tf->pszSelectedSize, sizeof(szCurrentSize)/sizeof(szCurrentSize[0]));
 424     }
 425     else {
 426         UXTHEME_RestoreSystemMetrics();
 427         bThemeActive = FALSE;
 428         szCurrentTheme[0] = '\0';
 429         szCurrentColor[0] = '\0';
 430         szCurrentSize[0] = '\0';
 431     }
 432
 433     TRACE("Writing theme config to registry\n");
 434     if(!RegCreateKeyW(HKEY_CURRENT_USER, szThemeManager, &hKey)) {
 435         tmp[0] = bThemeActive?'1':'0';
 436         tmp[1] = '\0';
 437         RegSetValueExW(hKey, szThemeActive, 0, REG_SZ, (const BYTE*)tmp, sizeof(WCHAR)*2);
 438         if(bThemeActive) {
 439             RegSetValueExW(hKey, szColorName, 0, REG_SZ, (const BYTE*)szCurrentColor,
 440                 (lstrlenW(szCurrentColor)+1)*sizeof(WCHAR));
 441             RegSetValueExW(hKey, szSizeName, 0, REG_SZ, (const BYTE*)szCurrentSize,
 442                 (lstrlenW(szCurrentSize)+1)*sizeof(WCHAR));
 443             RegSetValueExW(hKey, szDllName, 0, REG_SZ, (const BYTE*)szCurrentTheme,
 444                 (lstrlenW(szCurrentTheme)+1)*sizeof(WCHAR));
 445         }
 446         else {
 447             RegDeleteValueW(hKey, szColorName);
 448             RegDeleteValueW(hKey, szSizeName);
 449             RegDeleteValueW(hKey, szDllName);
 450
 451         }
 452         RegCloseKey(hKey);
 453     }
 454     else
 455         TRACE("Failed to open theme registry key\n");
 456
 457     UXTHEME_SaveSystemMetrics ();
 458
 459     return hr;
 460 }
 461
 462 /***********************************************************************
 463  *      UXTHEME_InitSystem
 464  */
 465 void UXTHEME_InitSystem(HINSTANCE hInst)
 466 {
 467     static const WCHAR szWindowTheme[] = {
 468         'u','x','_','t','h','e','m','e','\0'
 469     };
 470     static const WCHAR szSubAppName[] = {
 471         'u','x','_','s','u','b','a','p','p','\0'
 472     };
 473     static const WCHAR szSubIdList[] = {
 474         'u','x','_','s','u','b','i','d','l','s','t','\0'
 475     };
 476     static const WCHAR szDialogThemeEnabled[] = {
 477         'u','x','_','d','i','a','l','o','g','t','h','e','m','e','\0'
 478     };
 479
 480     hDllInst = hInst;
 481
 482     atWindowTheme        = GlobalAddAtomW(szWindowTheme);
 483     atSubAppName         = GlobalAddAtomW(szSubAppName);
 484     atSubIdList          = GlobalAddAtomW(szSubIdList);
 485     atDialogThemeEnabled = GlobalAddAtomW(szDialogThemeEnabled);
 486
 487     UXTHEME_LoadTheme();
 488 }
 489
 490 /***********************************************************************
 491  *      IsAppThemed                                         (UXTHEME.@)
 492  */
 493 BOOL WINAPI IsAppThemed(void)
 494 {
 495     return IsThemeActive();
 496 }
 497
 498 /***********************************************************************
 499  *      IsThemeActive                                       (UXTHEME.@)
 500  */
 501 BOOL WINAPI IsThemeActive(void)
 502 {
 503     TRACE("\n");
 504     return bThemeActive;
 505 }
 506
 507 /***********************************************************************
 508  *      EnableTheming                                       (UXTHEME.@)
 509  *
 510  * NOTES
 511  * This is a global and persistent change
 512  */
 513 HRESULT WINAPI EnableTheming(BOOL fEnable)
 514 {
 515     HKEY hKey;
 516     WCHAR szEnabled[] = {'0','\0'};
 517
 518     TRACE("(%d)\n", fEnable);
 519
 520     if(fEnable != bThemeActive) {
 521         if(fEnable)
 522             UXTHEME_BackupSystemMetrics();
 523         else
 524             UXTHEME_RestoreSystemMetrics();
 525         UXTHEME_SaveSystemMetrics ();
 526         bThemeActive = fEnable;
 527         if(bThemeActive) szEnabled[0] = '1';
 528         if(!RegOpenKeyW(HKEY_CURRENT_USER, szThemeManager, &hKey)) {
 529             RegSetValueExW(hKey, szThemeActive, 0, REG_SZ, (LPBYTE)szEnabled, sizeof(WCHAR));
 530             RegCloseKey(hKey);
 531         }
 532         UXTHEME_broadcast_msg (NULL, WM_THEMECHANGED);
 533     }
 534     return S_OK;
 535 }
 536
 537 /***********************************************************************
 538  *      UXTHEME_SetWindowProperty
 539  *
 540  * I'm using atoms as there may be large numbers of duplicated strings
 541  * and they do the work of keeping memory down as a cause of that quite nicely
 542  */
 543 HRESULT UXTHEME_SetWindowProperty(HWND hwnd, ATOM aProp, LPCWSTR pszValue)
 544 {
 545     ATOM oldValue = (ATOM)(size_t)RemovePropW(hwnd, MAKEINTATOMW(aProp));
 546     if(oldValue)
 547         DeleteAtom(oldValue);
 548     if(pszValue) {
 549         ATOM atValue = AddAtomW(pszValue);
 550         if(!atValue
 551            || !SetPropW(hwnd, MAKEINTATOMW(aProp), (LPWSTR)MAKEINTATOMW(atValue))) {
 552             HRESULT hr = HRESULT_FROM_WIN32(GetLastError());
 553             if(atValue) DeleteAtom(atValue);
 554             return hr;
 555         }
 556     }
 557     return S_OK;
 558 }
 559
 560 LPWSTR UXTHEME_GetWindowProperty(HWND hwnd, ATOM aProp, LPWSTR pszBuffer, int dwLen)
 561 {
 562     ATOM atValue = (ATOM)(size_t)GetPropW(hwnd, MAKEINTATOMW(aProp));
 563     if(atValue) {
 564         if(GetAtomNameW(atValue, pszBuffer, dwLen))
 565             return pszBuffer;
 566         TRACE("property defined, but unable to get value\n");
 567     }
 568     return NULL;
 569 }
 570
 571 /***********************************************************************
 572  *      OpenThemeData                                       (UXTHEME.@)
 573  */
 574 HTHEME WINAPI OpenThemeData(HWND hwnd, LPCWSTR pszClassList)
 575 {
 576     WCHAR szAppBuff[256];
 577     WCHAR szClassBuff[256];
 578     LPCWSTR pszAppName;
 579     LPCWSTR pszUseClassList;
 580     HTHEME hTheme = NULL;
 581     TRACE("(%p,%s)", hwnd, debugstr_w(pszClassList));
 582
 583     if(bThemeActive)
 584     {
 585         pszAppName = UXTHEME_GetWindowProperty(hwnd, atSubAppName, szAppBuff, sizeof(szAppBuff)/sizeof(szAppBuff[0]));
 586         /* If SetWindowTheme was used on the window, that overrides the class list passed to this function */
 587         pszUseClassList = UXTHEME_GetWindowProperty(hwnd, atSubIdList, szClassBuff, sizeof(szClassBuff)/sizeof(szClassBuff[0]));
 588         if(!pszUseClassList)
 589             pszUseClassList = pszClassList;
 590
 591         if (pszUseClassList)
 592             hTheme = MSSTYLES_OpenThemeClass(pszAppName, pszUseClassList);
 593     }
 594     if(IsWindow(hwnd))
 595         SetPropW(hwnd, MAKEINTATOMW(atWindowTheme), hTheme);
 596     TRACE(" = %p\n", hTheme);
 597     return hTheme;
 598 }
 599
 600 /***********************************************************************
 601  *      GetWindowTheme                                      (UXTHEME.@)
 602  *
 603  * Retrieve the last theme opened for a window
 604  */
 605 HTHEME WINAPI GetWindowTheme(HWND hwnd)
 606 {
 607     TRACE("(%p)\n", hwnd);
 608     return GetPropW(hwnd, MAKEINTATOMW(atWindowTheme));
 609 }
 610
 611 /***********************************************************************
 612  *      SetWindowTheme                                      (UXTHEME.@)
 613  *
 614  * Persistent through the life of the window, even after themes change
 615  */
 616 HRESULT WINAPI SetWindowTheme(HWND hwnd, LPCWSTR pszSubAppName,
 617                               LPCWSTR pszSubIdList)
 618 {
 619     HRESULT hr;
 620     TRACE("(%p,%s,%s)\n", hwnd, debugstr_w(pszSubAppName),
 621           debugstr_w(pszSubIdList));
 622     hr = UXTHEME_SetWindowProperty(hwnd, atSubAppName, pszSubAppName);
 623     if(SUCCEEDED(hr))
 624         hr = UXTHEME_SetWindowProperty(hwnd, atSubIdList, pszSubIdList);
 625     if(SUCCEEDED(hr))
 626         UXTHEME_broadcast_msg (hwnd, WM_THEMECHANGED);
 627     return hr;
 628 }
 629
 630 /***********************************************************************
 631  *      GetCurrentThemeName                                 (UXTHEME.@)
 632  */
 633 HRESULT WINAPI GetCurrentThemeName(LPWSTR pszThemeFileName, int dwMaxNameChars,
 634                                    LPWSTR pszColorBuff, int cchMaxColorChars,
 635                                    LPWSTR pszSizeBuff, int cchMaxSizeChars)
 636 {
 637     if(!bThemeActive)
 638         return E_PROP_ID_UNSUPPORTED;
 639     if(pszThemeFileName) lstrcpynW(pszThemeFileName, szCurrentTheme, dwMaxNameChars);
 640     if(pszColorBuff) lstrcpynW(pszColorBuff, szCurrentColor, cchMaxColorChars);
 641     if(pszSizeBuff) lstrcpynW(pszSizeBuff, szCurrentSize, cchMaxSizeChars);
 642     return S_OK;
 643 }
 644
 645 /***********************************************************************
 646  *      GetThemeAppProperties                               (UXTHEME.@)
 647  */
 648 DWORD WINAPI GetThemeAppProperties(void)
 649 {
 650     return dwThemeAppProperties;
 651 }
 652
 653 /***********************************************************************
 654  *      SetThemeAppProperties                               (UXTHEME.@)
 655  */
 656 void WINAPI SetThemeAppProperties(DWORD dwFlags)
 657 {
 658     TRACE("(0x%08lx)\n", dwFlags);
 659     dwThemeAppProperties = dwFlags;
 660 }
 661
 662 /***********************************************************************
 663  *      CloseThemeData                                      (UXTHEME.@)
 664  */
 665 HRESULT WINAPI CloseThemeData(HTHEME hTheme)
 666 {
 667     TRACE("(%p)\n", hTheme);
 668     if(!hTheme)
 669         return E_HANDLE;
 670     return MSSTYLES_CloseThemeClass(hTheme);
 671 }
 672
 673 /***********************************************************************
 674  *      HitTestThemeBackground                              (UXTHEME.@)
 675  */
 676 HRESULT WINAPI HitTestThemeBackground(HTHEME hTheme, HDC hdc, int iPartId,
 677                                      int iStateId, DWORD dwOptions,
 678                                      const RECT *pRect, HRGN hrgn,
 679                                      POINT ptTest, WORD *pwHitTestCode)
 680 {
 681     FIXME("%d %d 0x%08lx: stub\n", iPartId, iStateId, dwOptions);
 682     if(!hTheme)
 683         return E_HANDLE;
 684     return ERROR_CALL_NOT_IMPLEMENTED;
 685 }
 686
 687 /***********************************************************************
 688  *      IsThemePartDefined                                  (UXTHEME.@)
 689  */
 690 BOOL WINAPI IsThemePartDefined(HTHEME hTheme, int iPartId, int iStateId)
 691 {
 692     TRACE("(%p,%d,%d)\n", hTheme, iPartId, iStateId);
 693     if(!hTheme) {
 694         SetLastError(E_HANDLE);
 695         return FALSE;
 696     }
 697     if(MSSTYLES_FindPartState(hTheme, iPartId, iStateId, NULL))
 698         return TRUE;
 699     return FALSE;
 700 }
 701
 702 /***********************************************************************
 703  *      GetThemeDocumentationProperty                       (UXTHEME.@)
 704  *
 705  * Try and retrieve the documentation property from string resources
 706  * if that fails, get it from the [documentation] section of themes.ini
 707  */
 708 HRESULT WINAPI GetThemeDocumentationProperty(LPCWSTR pszThemeName,
 709                                              LPCWSTR pszPropertyName,
 710                                              LPWSTR pszValueBuff,
 711                                              int cchMaxValChars)
 712 {
 713     const WORD wDocToRes[] = {
 714         TMT_DISPLAYNAME,5000,
 715         TMT_TOOLTIP,5001,
 716         TMT_COMPANY,5002,
 717         TMT_AUTHOR,5003,
 718         TMT_COPYRIGHT,5004,
 719         TMT_URL,5005,
 720         TMT_VERSION,5006,
 721         TMT_DESCRIPTION,5007
 722     };
 723
 724     PTHEME_FILE pt;
 725     HRESULT hr;
 726     unsigned int i;
 727     int iDocId;
 728     TRACE("(%s,%s,%p,%d)\n", debugstr_w(pszThemeName), debugstr_w(pszPropertyName),
 729           pszValueBuff, cchMaxValChars);
 730
 731     hr = MSSTYLES_OpenThemeFile(pszThemeName, NULL, NULL, &pt);
 732     if(FAILED(hr)) return hr;
 733
 734     /* Try to load from string resources */
 735     hr = E_PROP_ID_UNSUPPORTED;
 736     if(MSSTYLES_LookupProperty(pszPropertyName, NULL, &iDocId)) {
 737         for(i=0; i<sizeof(wDocToRes)/sizeof(wDocToRes[0]); i+=2) {
 738             if(wDocToRes[i] == iDocId) {
 739                 if(LoadStringW(pt->hTheme, wDocToRes[i+1], pszValueBuff, cchMaxValChars)) {
 740                     hr = S_OK;
 741                     break;
 742                 }
 743             }
 744         }
 745     }
 746     /* If loading from string resource failed, try getting it from the theme.ini */
 747     if(FAILED(hr)) {
 748         PUXINI_FILE uf = MSSTYLES_GetThemeIni(pt);
 749         if(UXINI_FindSection(uf, szIniDocumentation)) {
 750             LPCWSTR lpValue;
 751             DWORD dwLen;
 752             if(UXINI_FindValue(uf, pszPropertyName, &lpValue, &dwLen)) {
 753                 lstrcpynW(pszValueBuff, lpValue, min(dwLen+1,cchMaxValChars));
 754                 hr = S_OK;
 755             }
 756         }
 757         UXINI_CloseINI(uf);
 758     }
 759
 760     MSSTYLES_CloseThemeFile(pt);
 761     return hr;
 762 }
 763
 764 /**********************************************************************
 765  *      Undocumented functions
 766  */
 767
 768 /**********************************************************************
 769  *      QueryThemeServices                                 (UXTHEME.1)
 770  *
 771  * RETURNS
 772  *     some kind of status flag
 773  */
 774 DWORD WINAPI QueryThemeServices()
 775 {
 776     FIXME("stub\n");
 777     return 3; /* This is what is returned under XP in most cases */
 778 }
 779
 780
 781 /**********************************************************************
 782  *      OpenThemeFile                                      (UXTHEME.2)
 783  *
 784  * Opens a theme file, which can be used to change the current theme, etc
 785  *
 786  * PARAMS
 787  *     pszThemeFileName    Path to a msstyles theme file
 788  *     pszColorName        Color defined in the theme, eg. NormalColor
 789  *     pszSizeName         Size defined in the theme, eg. NormalSize
 790  *     hThemeFile          Handle to theme file
 791  */
 792 HRESULT WINAPI OpenThemeFile(LPCWSTR pszThemeFileName, LPCWSTR pszColorName,
 793                              LPCWSTR pszSizeName, HTHEMEFILE *hThemeFile,
 794                              DWORD unknown)
 795 {
 796     TRACE("(%s,%s,%s,%p,%ld)\n", debugstr_w(pszThemeFileName),
 797           debugstr_w(pszColorName), debugstr_w(pszSizeName),
 798           hThemeFile, unknown);
 799     return MSSTYLES_OpenThemeFile(pszThemeFileName, pszColorName, pszSizeName, (PTHEME_FILE*)hThemeFile);
 800 }
 801
 802 /**********************************************************************
 803  *      CloseThemeFile                                     (UXTHEME.3)
 804  *
 805  * Releases theme file handle returned by OpenThemeFile
 806  *
 807  * PARAMS
 808  *     hThemeFile           Handle to theme file
 809  */
 810 HRESULT WINAPI CloseThemeFile(HTHEMEFILE hThemeFile)
 811 {
 812     TRACE("(%p)\n", hThemeFile);
 813     MSSTYLES_CloseThemeFile(hThemeFile);
 814     return S_OK;
 815 }
 816
 817 /**********************************************************************
 818  *      ApplyTheme                                         (UXTHEME.4)
 819  *
 820  * Set a theme file to be the currently active theme
 821  *
 822  * PARAMS
 823  *     hThemeFile           Handle to theme file
 824  *     unknown              See notes
 825  *     hWnd                 Window requesting the theme change
 826  *
 827  * NOTES
 828  * I'm not sure what the second parameter is (the datatype is likely wrong), other then this:
 829  * Under XP if I pass
 830  * char b[] = "";
 831  *   the theme is applied with the screen redrawing really badly (flickers)
 832  * char b[] = "\0"; where \0 can be one or more of any character, makes no difference
 833  *   the theme is applied smoothly (screen does not flicker)
 834  * char *b = "\0" or NULL; where \0 can be zero or more of any character, makes no difference
 835  *   the function fails returning invalid parameter...very strange
 836  */
 837 HRESULT WINAPI ApplyTheme(HTHEMEFILE hThemeFile, char *unknown, HWND hWnd)
 838 {
 839     HRESULT hr;
 840     TRACE("(%p,%s,%p)\n", hThemeFile, unknown, hWnd);
 841     hr = UXTHEME_SetActiveTheme(hThemeFile);
 842     UXTHEME_broadcast_msg (NULL, WM_THEMECHANGED);
 843     return hr;
 844 }
 845
 846 /**********************************************************************
 847  *      GetThemeDefaults                                   (UXTHEME.7)
 848  *
 849  * Get the default color & size for a theme
 850  *
 851  * PARAMS
 852  *     pszThemeFileName    Path to a msstyles theme file
 853  *     pszColorName        Buffer to receive the default color name
 854  *     dwColorNameLen      Length, in characters, of color name buffer
 855  *     pszSizeName         Buffer to receive the default size name
 856  *     dwSizeNameLen       Length, in characters, of size name buffer
 857  */
 858 HRESULT WINAPI GetThemeDefaults(LPCWSTR pszThemeFileName, LPWSTR pszColorName,
 859                                 DWORD dwColorNameLen, LPWSTR pszSizeName,
 860                                 DWORD dwSizeNameLen)
 861 {
 862     PTHEME_FILE pt;
 863     HRESULT hr;
 864     TRACE("(%s,%p,%ld,%p,%ld)\n", debugstr_w(pszThemeFileName),
 865           pszColorName, dwColorNameLen,
 866           pszSizeName, dwSizeNameLen);
 867
 868     hr = MSSTYLES_OpenThemeFile(pszThemeFileName, NULL, NULL, &pt);
 869     if(FAILED(hr)) return hr;
 870
 871     lstrcpynW(pszColorName, pt->pszSelectedColor, dwColorNameLen);
 872     lstrcpynW(pszSizeName, pt->pszSelectedSize, dwSizeNameLen);
 873
 874     MSSTYLES_CloseThemeFile(pt);
 875     return S_OK;
 876 }
 877
 878 /**********************************************************************
 879  *      EnumThemes                                         (UXTHEME.8)
 880  *
 881  * Enumerate available themes, calls specified EnumThemeProc for each
 882  * theme found. Passes lpData through to callback function.
 883  *
 884  * PARAMS
 885  *     pszThemePath        Path containing themes
 886  *     callback            Called for each theme found in path
 887  *     lpData              Passed through to callback
 888  */
 889 HRESULT WINAPI EnumThemes(LPCWSTR pszThemePath, EnumThemeProc callback,
 890                           LPVOID lpData)
 891 {
 892     WCHAR szDir[MAX_PATH];
 893     WCHAR szPath[MAX_PATH];
 894     static const WCHAR szStar[] = {'*','.','*','\0'};
 895     static const WCHAR szFormat[] = {'%','s','%','s','\\','%','s','.','m','s','s','t','y','l','e','s','\0'};
 896     static const WCHAR szDisplayName[] = {'d','i','s','p','l','a','y','n','a','m','e','\0'};
 897     static const WCHAR szTooltip[] = {'t','o','o','l','t','i','p','\0'};
 898     WCHAR szName[60];
 899     WCHAR szTip[60];
 900     HANDLE hFind;
 901     WIN32_FIND_DATAW wfd;
 902     HRESULT hr;
 903     size_t pathLen;
 904
 905     TRACE("(%s,%p,%p)\n", debugstr_w(pszThemePath), callback, lpData);
 906
 907     if(!pszThemePath || !callback)
 908         return E_POINTER;
 909
 910     lstrcpyW(szDir, pszThemePath);
 911     pathLen = lstrlenW (szDir);
 912     if ((pathLen > 0) && (pathLen < MAX_PATH-1) && (szDir[pathLen - 1] != '\\'))
 913     {
 914         szDir[pathLen] = '\\';
 915         szDir[pathLen+1] = 0;
 916     }
 917
 918     lstrcpyW(szPath, szDir);
 919     lstrcatW(szPath, szStar);
 920     TRACE("searching %s\n", debugstr_w(szPath));
 921
 922     hFind = FindFirstFileW(szPath, &wfd);
 923     if(hFind != INVALID_HANDLE_VALUE) {
 924         do {
 925             if(wfd.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY
 926                && !(wfd.cFileName[0] == '.' && ((wfd.cFileName[1] == '.' && wfd.cFileName[2] == 0) || wfd.cFileName[1] == 0))) {
 927                 wsprintfW(szPath, szFormat, szDir, wfd.cFileName, wfd.cFileName);
 928
 929                 hr = GetThemeDocumentationProperty(szPath, szDisplayName, szName, sizeof(szName)/sizeof(szName[0]));
 930                 if(SUCCEEDED(hr))
 931                     hr = GetThemeDocumentationProperty(szPath, szTooltip, szTip, sizeof(szTip)/sizeof(szTip[0]));
 932                 if(SUCCEEDED(hr)) {
 933                     TRACE("callback(%s,%s,%s,%p)\n", debugstr_w(szPath), debugstr_w(szName), debugstr_w(szTip), lpData);
 934                     if(!callback(NULL, szPath, szName, szTip, NULL, lpData)) {
 935                         TRACE("callback ended enum\n");
 936                         break;
 937                     }
 938                 }
 939             }
 940         } while(FindNextFileW(hFind, &wfd));
 941         FindClose(hFind);
 942     }
 943     return S_OK;
 944 }
 945
 946
 947 /**********************************************************************
 948  *      EnumThemeColors                                    (UXTHEME.9)
 949  *
 950  * Enumerate theme colors available with a particular size
 951  *
 952  * PARAMS
 953  *     pszThemeFileName    Path to a msstyles theme file
 954  *     pszSizeName         Theme size to enumerate available colors
 955  *                         If NULL the default theme size is used
 956  *     dwColorNum          Color index to retrieve, increment from 0
 957  *     pszColorNames       Output color names
 958  *
 959  * RETURNS
 960  *     S_OK on success
 961  *     E_PROP_ID_UNSUPPORTED when dwColorName does not refer to a color
 962  *          or when pszSizeName does not refer to a valid size
 963  *
 964  * NOTES
 965  * XP fails with E_POINTER when pszColorNames points to a buffer smaller than
 966  * sizeof(THEMENAMES).
 967  *
 968  * Not very efficient that I'm opening & validating the theme every call, but
 969  * this is undocumented and almost never called..
 970  * (and this is how windows works too)
 971  */
 972 HRESULT WINAPI EnumThemeColors(LPWSTR pszThemeFileName, LPWSTR pszSizeName,
 973                                DWORD dwColorNum, PTHEMENAMES pszColorNames)
 974 {
 975     PTHEME_FILE pt;
 976     HRESULT hr;
 977     LPWSTR tmp;
 978     UINT resourceId = dwColorNum + 1000;
 979     TRACE("(%s,%s,%ld)\n", debugstr_w(pszThemeFileName),
 980           debugstr_w(pszSizeName), dwColorNum);
 981
 982     hr = MSSTYLES_OpenThemeFile(pszThemeFileName, NULL, pszSizeName, &pt);
 983     if(FAILED(hr)) return hr;
 984
 985     tmp = pt->pszAvailColors;
 986     while(dwColorNum && *tmp) {
 987         dwColorNum--;
 988         tmp += lstrlenW(tmp)+1;
 989     }
 990     if(!dwColorNum && *tmp) {
 991         TRACE("%s\n", debugstr_w(tmp));
 992         lstrcpyW(pszColorNames->szName, tmp);
 993         LoadStringW (pt->hTheme, resourceId,
 994             pszColorNames->szDisplayName,
 995             sizeof (pszColorNames->szDisplayName) / sizeof (WCHAR));
 996         LoadStringW (pt->hTheme, resourceId+1000,
 997             pszColorNames->szTooltip,
 998             sizeof (pszColorNames->szTooltip) / sizeof (WCHAR));
 999     }
1000     else
1001         hr = E_PROP_ID_UNSUPPORTED;
1002
1003     MSSTYLES_CloseThemeFile(pt);
1004     return hr;
1005 }
1006
1007 /**********************************************************************
1008  *      EnumThemeSizes                                     (UXTHEME.10)
1009  *
1010  * Enumerate theme colors available with a particular size
1011  *
1012  * PARAMS
1013  *     pszThemeFileName    Path to a msstyles theme file
1014  *     pszColorName        Theme color to enumerate available sizes
1015  *                         If NULL the default theme color is used
1016  *     dwSizeNum           Size index to retrieve, increment from 0
1017  *     pszSizeNames        Output size names
1018  *
1019  * RETURNS
1020  *     S_OK on success
1021  *     E_PROP_ID_UNSUPPORTED when dwSizeName does not refer to a size
1022  *          or when pszColorName does not refer to a valid color
1023  *
1024  * NOTES
1025  * XP fails with E_POINTER when pszSizeNames points to a buffer smaller than
1026  * sizeof(THEMENAMES).
1027  *
1028  * Not very efficient that I'm opening & validating the theme every call, but
1029  * this is undocumented and almost never called..
1030  * (and this is how windows works too)
1031  */
1032 HRESULT WINAPI EnumThemeSizes(LPWSTR pszThemeFileName, LPWSTR pszColorName,
1033                               DWORD dwSizeNum, PTHEMENAMES pszSizeNames)
1034 {
1035     PTHEME_FILE pt;
1036     HRESULT hr;
1037     LPWSTR tmp;
1038     UINT resourceId = dwSizeNum + 3000;
1039     TRACE("(%s,%s,%ld)\n", debugstr_w(pszThemeFileName),
1040           debugstr_w(pszColorName), dwSizeNum);
1041
1042     hr = MSSTYLES_OpenThemeFile(pszThemeFileName, pszColorName, NULL, &pt);
1043     if(FAILED(hr)) return hr;
1044
1045     tmp = pt->pszAvailSizes;
1046     while(dwSizeNum && *tmp) {
1047         dwSizeNum--;
1048         tmp += lstrlenW(tmp)+1;
1049     }
1050     if(!dwSizeNum && *tmp) {
1051         TRACE("%s\n", debugstr_w(tmp));
1052         lstrcpyW(pszSizeNames->szName, tmp);
1053         LoadStringW (pt->hTheme, resourceId,
1054             pszSizeNames->szDisplayName,
1055             sizeof (pszSizeNames->szDisplayName) / sizeof (WCHAR));
1056         LoadStringW (pt->hTheme, resourceId+1000,
1057             pszSizeNames->szTooltip,
1058             sizeof (pszSizeNames->szTooltip) / sizeof (WCHAR));
1059     }
1060     else
1061         hr = E_PROP_ID_UNSUPPORTED;
1062
1063     MSSTYLES_CloseThemeFile(pt);
1064     return hr;
1065 }
1066
1067 /**********************************************************************
1068  *      ParseThemeIniFile                                  (UXTHEME.11)
1069  *
1070  * Enumerate data in a theme INI file.
1071  *
1072  * PARAMS
1073  *     pszIniFileName      Path to a theme ini file
1074  *     pszUnknown          Cannot be NULL, L"" is valid
1075  *     callback            Called for each found entry
1076  *     lpData              Passed through to callback
1077  *
1078  * RETURNS
1079  *     S_OK on success
1080  *     0x800706488 (Unknown property) when enumeration is canceled from callback
1081  *
1082  * NOTES
1083  * When pszUnknown is NULL the callback is never called, the value does not seem to surve
1084  * any other purpose
1085  */
1086 HRESULT WINAPI ParseThemeIniFile(LPCWSTR pszIniFileName, LPWSTR pszUnknown,
1087                                  ParseThemeIniFileProc callback, LPVOID lpData)
1088 {
1089     FIXME("%s %s: stub\n", debugstr_w(pszIniFileName), debugstr_w(pszUnknown));
1090     return ERROR_CALL_NOT_IMPLEMENTED;
1091 }
1092
1093 /**********************************************************************
1094  *      CheckThemeSignature                                (UXTHEME.29)
1095  *
1096  * Validates the signature of a theme file
1097  *
1098  * PARAMS
1099  *     pszIniFileName      Path to a theme file
1100  */
1101 HRESULT WINAPI CheckThemeSignature(LPCWSTR pszThemeFileName)
1102 {
1103     PTHEME_FILE pt;
1104     HRESULT hr;
1105     TRACE("(%s)\n", debugstr_w(pszThemeFileName));
1106     hr = MSSTYLES_OpenThemeFile(pszThemeFileName, NULL, NULL, &pt);
1107     if(FAILED(hr))
1108         return hr;
1109     MSSTYLES_CloseThemeFile(pt);
1110     return S_OK;
1111 }