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
  25 #include "windef.h"
  26 #include "winbase.h"
  27 #include "winuser.h"
  28 #include "wingdi.h"
  29 #include "winreg.h"
  30 #include "shlwapi.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 /***********************************************************************
  96  *      UXTHEME_LoadTheme
  97  *
  98  * Set the current active theme from the registry
  99  */
 100 static void UXTHEME_LoadTheme(void)
 101 {
 102     HKEY hKey;
 103     DWORD buffsize;
 104     HRESULT hr;
 105     WCHAR tmp[10];
 106     PTHEME_FILE pt;
 107
 108     /* Get current theme configuration */
 109     if(!RegOpenKeyW(HKEY_CURRENT_USER, szThemeManager, &hKey)) {
 110         TRACE("Loading theme config\n");
 111         buffsize = sizeof(tmp)/sizeof(tmp[0]);
 112         if(!RegQueryValueExW(hKey, szThemeActive, NULL, NULL, (LPBYTE)tmp, &buffsize)) {
 113             bThemeActive = (tmp[0] != '0');
 114         }
 115         else {
 116             bThemeActive = FALSE;
 117             TRACE("Failed to get ThemeActive: %ld\n", GetLastError());
 118         }
 119         buffsize = sizeof(szCurrentColor)/sizeof(szCurrentColor[0]);
 120         if(RegQueryValueExW(hKey, szColorName, NULL, NULL, (LPBYTE)szCurrentColor, &buffsize))
 121             szCurrentColor[0] = '\0';
 122         buffsize = sizeof(szCurrentSize)/sizeof(szCurrentSize[0]);
 123         if(RegQueryValueExW(hKey, szSizeName, NULL, NULL, (LPBYTE)szCurrentSize, &buffsize))
 124             szCurrentSize[0] = '\0';
 125         if(SHRegGetPathW(hKey, NULL, szDllName, szCurrentTheme, 0))
 126             szCurrentTheme[0] = '\0';
 127         RegCloseKey(hKey);
 128     }
 129     else
 130         TRACE("Failed to open theme registry key\n");
 131
 132     if(bThemeActive) {
 133         /* Make sure the theme requested is actually valid */
 134         hr = MSSTYLES_OpenThemeFile(szCurrentTheme,
 135                                     szCurrentColor[0]?szCurrentColor:NULL,
 136                                     szCurrentSize[0]?szCurrentSize:NULL,
 137                                     &pt);
 138         if(FAILED(hr)) {
 139             bThemeActive = FALSE;
 140             szCurrentTheme[0] = '\0';
 141             szCurrentColor[0] = '\0';
 142             szCurrentSize[0] = '\0';
 143         }
 144         else {
 145             /* Make sure the global color & size match the theme */
 146             lstrcpynW(szCurrentColor, pt->pszSelectedColor, sizeof(szCurrentColor)/sizeof(szCurrentColor[0]));
 147             lstrcpynW(szCurrentSize, pt->pszSelectedSize, sizeof(szCurrentSize)/sizeof(szCurrentSize[0]));
 148
 149             MSSTYLES_SetActiveTheme(pt);
 150             TRACE("Theme active: %s %s %s\n", debugstr_w(szCurrentTheme),
 151                 debugstr_w(szCurrentColor), debugstr_w(szCurrentSize));
 152             MSSTYLES_CloseThemeFile(pt);
 153         }
 154     }
 155     if(!bThemeActive) {
 156         MSSTYLES_SetActiveTheme(NULL);
 157         TRACE("Themeing not active\n");
 158     }
 159 }
 160
 161 /***********************************************************************
 162  *      UXTHEME_SetActiveTheme
 163  *
 164  * Change the current active theme
 165  */
 166 HRESULT UXTHEME_SetActiveTheme(PTHEME_FILE tf)
 167 {
 168     HKEY hKey;
 169     WCHAR tmp[2];
 170     HRESULT hr;
 171
 172     hr = MSSTYLES_SetActiveTheme(tf);
 173     if(FAILED(hr))
 174         return hr;
 175     if(tf) {
 176         bThemeActive = TRUE;
 177         lstrcpynW(szCurrentTheme, tf->szThemeFile, sizeof(szCurrentTheme)/sizeof(szCurrentTheme[0]));
 178         lstrcpynW(szCurrentColor, tf->pszSelectedColor, sizeof(szCurrentColor)/sizeof(szCurrentColor[0]));
 179         lstrcpynW(szCurrentSize, tf->pszSelectedSize, sizeof(szCurrentSize)/sizeof(szCurrentSize[0]));
 180     }
 181     else {
 182         bThemeActive = FALSE;
 183         szCurrentTheme[0] = '\0';
 184         szCurrentColor[0] = '\0';
 185         szCurrentSize[0] = '\0';
 186     }
 187
 188     TRACE("Writing theme config to registry\n");
 189     if(!RegCreateKeyW(HKEY_CURRENT_USER, szThemeManager, &hKey)) {
 190         tmp[0] = bThemeActive?'1':'0';
 191         tmp[1] = '\0';
 192         RegSetValueExW(hKey, szThemeActive, 0, REG_SZ, (const BYTE*)tmp, sizeof(WCHAR)*2);
 193         if(bThemeActive) {
 194             RegSetValueExW(hKey, szColorName, 0, REG_SZ, (const BYTE*)szCurrentColor,
 195                 (lstrlenW(szCurrentColor)+1)*sizeof(WCHAR));
 196             RegSetValueExW(hKey, szSizeName, 0, REG_SZ, (const BYTE*)szCurrentSize,
 197                 (lstrlenW(szCurrentSize)+1)*sizeof(WCHAR));
 198             RegSetValueExW(hKey, szDllName, 0, REG_SZ, (const BYTE*)szCurrentTheme,
 199                 (lstrlenW(szCurrentTheme)+1)*sizeof(WCHAR));
 200         }
 201         else {
 202             RegDeleteValueW(hKey, szColorName);
 203             RegDeleteValueW(hKey, szSizeName);
 204             RegDeleteValueW(hKey, szDllName);
 205
 206         }
 207         RegCloseKey(hKey);
 208     }
 209     else
 210         TRACE("Failed to open theme registry key\n");
 211     return hr;
 212 }
 213
 214 /***********************************************************************
 215  *      UXTHEME_InitSystem
 216  */
 217 void UXTHEME_InitSystem(HINSTANCE hInst)
 218 {
 219     static const WCHAR szWindowTheme[] = {
 220         'u','x','_','t','h','e','m','e','\0'
 221     };
 222     static const WCHAR szSubAppName[] = {
 223         'u','x','_','s','u','b','a','p','p','\0'
 224     };
 225     static const WCHAR szSubIdList[] = {
 226         'u','x','_','s','u','b','i','d','l','s','t','\0'
 227     };
 228     static const WCHAR szDialogThemeEnabled[] = {
 229         'u','x','_','d','i','a','l','o','g','t','h','e','m','e','\0'
 230     };
 231
 232     hDllInst = hInst;
 233
 234     atWindowTheme        = GlobalAddAtomW(szWindowTheme);
 235     atSubAppName         = GlobalAddAtomW(szSubAppName);
 236     atSubIdList          = GlobalAddAtomW(szSubIdList);
 237     atDialogThemeEnabled = GlobalAddAtomW(szDialogThemeEnabled);
 238
 239     UXTHEME_LoadTheme();
 240 }
 241
 242 /***********************************************************************
 243  *      IsAppThemed                                         (UXTHEME.@)
 244  */
 245 BOOL WINAPI IsAppThemed(void)
 246 {
 247     return IsThemeActive();
 248 }
 249
 250 /***********************************************************************
 251  *      IsThemeActive                                       (UXTHEME.@)
 252  */
 253 BOOL WINAPI IsThemeActive(void)
 254 {
 255     TRACE("\n");
 256     return bThemeActive;
 257 }
 258
 259 /***********************************************************************
 260  *      EnableTheming                                       (UXTHEME.@)
 261  *
 262  * NOTES
 263  * This is a global and persistent change
 264  */
 265 HRESULT WINAPI EnableTheming(BOOL fEnable)
 266 {
 267     HKEY hKey;
 268     WCHAR szEnabled[] = {'0','\0'};
 269
 270     TRACE("(%d)\n", fEnable);
 271
 272     if(fEnable != bThemeActive) {
 273         bThemeActive = fEnable;
 274         if(bThemeActive) szEnabled[0] = '1';
 275         if(!RegOpenKeyW(HKEY_CURRENT_USER, szThemeManager, &hKey)) {
 276             RegSetValueExW(hKey, szThemeActive, 0, REG_SZ, (LPBYTE)szEnabled, sizeof(WCHAR));
 277             RegCloseKey(hKey);
 278         }
 279         UXTHEME_broadcast_msg (NULL, WM_THEMECHANGED);
 280     }
 281     return S_OK;
 282 }
 283
 284 /***********************************************************************
 285  *      UXTHEME_SetWindowProperty
 286  *
 287  * I'm using atoms as there may be large numbers of duplicated strings
 288  * and they do the work of keeping memory down as a cause of that quite nicely
 289  */
 290 HRESULT UXTHEME_SetWindowProperty(HWND hwnd, ATOM aProp, LPCWSTR pszValue)
 291 {
 292     ATOM oldValue = (ATOM)(size_t)RemovePropW(hwnd, MAKEINTATOMW(aProp));
 293     if(oldValue)
 294         DeleteAtom(oldValue);
 295     if(pszValue) {
 296         ATOM atValue = AddAtomW(pszValue);
 297         if(!atValue
 298            || !SetPropW(hwnd, MAKEINTATOMW(aProp), (LPWSTR)MAKEINTATOMW(atValue))) {
 299             HRESULT hr = HRESULT_FROM_WIN32(GetLastError());
 300             if(atValue) DeleteAtom(atValue);
 301             return hr;
 302         }
 303     }
 304     return S_OK;
 305 }
 306
 307 LPWSTR UXTHEME_GetWindowProperty(HWND hwnd, ATOM aProp, LPWSTR pszBuffer, int dwLen)
 308 {
 309     ATOM atValue = (ATOM)(size_t)GetPropW(hwnd, MAKEINTATOMW(aProp));
 310     if(atValue) {
 311         if(GetAtomNameW(atValue, pszBuffer, dwLen))
 312             return pszBuffer;
 313         TRACE("property defined, but unable to get value\n");
 314     }
 315     return NULL;
 316 }
 317
 318 /***********************************************************************
 319  *      OpenThemeData                                       (UXTHEME.@)
 320  */
 321 HTHEME WINAPI OpenThemeData(HWND hwnd, LPCWSTR pszClassList)
 322 {
 323     WCHAR szAppBuff[256];
 324     WCHAR szClassBuff[256];
 325     LPCWSTR pszAppName;
 326     LPCWSTR pszUseClassList;
 327     HTHEME hTheme;
 328     TRACE("(%p,%s)\n", hwnd, debugstr_w(pszClassList));
 329     if(!bThemeActive)
 330         return NULL;
 331
 332     pszAppName = UXTHEME_GetWindowProperty(hwnd, atSubAppName, szAppBuff, sizeof(szAppBuff)/sizeof(szAppBuff[0]));
 333     /* If SetWindowTheme was used on the window, that overrides the class list passed to this function */
 334     pszUseClassList = UXTHEME_GetWindowProperty(hwnd, atSubIdList, szClassBuff, sizeof(szClassBuff)/sizeof(szClassBuff[0]));
 335     if(!pszUseClassList)
 336         pszUseClassList = pszClassList;
 337
 338     if (!pszClassList) return NULL;
 339
 340     hTheme = MSSTYLES_OpenThemeClass(pszAppName, pszUseClassList);
 341     if(IsWindow(hwnd))
 342         SetPropW(hwnd, MAKEINTATOMW(atWindowTheme), hTheme);
 343     return hTheme;
 344 }
 345
 346 /***********************************************************************
 347  *      GetWindowTheme                                      (UXTHEME.@)
 348  *
 349  * Retrieve the last theme opened for a window
 350  */
 351 HTHEME WINAPI GetWindowTheme(HWND hwnd)
 352 {
 353     TRACE("(%p)\n", hwnd);
 354     return GetPropW(hwnd, MAKEINTATOMW(atWindowTheme));
 355 }
 356
 357 /***********************************************************************
 358  *      SetWindowTheme                                      (UXTHEME.@)
 359  *
 360  * Persistent through the life of the window, even after themes change
 361  */
 362 HRESULT WINAPI SetWindowTheme(HWND hwnd, LPCWSTR pszSubAppName,
 363                               LPCWSTR pszSubIdList)
 364 {
 365     HRESULT hr;
 366     TRACE("(%p,%s,%s)\n", hwnd, debugstr_w(pszSubAppName),
 367           debugstr_w(pszSubIdList));
 368     hr = UXTHEME_SetWindowProperty(hwnd, atSubAppName, pszSubAppName);
 369     if(SUCCEEDED(hr))
 370         hr = UXTHEME_SetWindowProperty(hwnd, atSubIdList, pszSubIdList);
 371     if(SUCCEEDED(hr))
 372         UXTHEME_broadcast_msg (hwnd, WM_THEMECHANGED);
 373     return hr;
 374 }
 375
 376 /***********************************************************************
 377  *      GetCurrentThemeName                                 (UXTHEME.@)
 378  */
 379 HRESULT WINAPI GetCurrentThemeName(LPWSTR pszThemeFileName, int dwMaxNameChars,
 380                                    LPWSTR pszColorBuff, int cchMaxColorChars,
 381                                    LPWSTR pszSizeBuff, int cchMaxSizeChars)
 382 {
 383     if(!bThemeActive)
 384         return E_PROP_ID_UNSUPPORTED;
 385     if(pszThemeFileName) lstrcpynW(pszThemeFileName, szCurrentTheme, dwMaxNameChars);
 386     if(pszColorBuff) lstrcpynW(pszColorBuff, szCurrentColor, cchMaxColorChars);
 387     if(pszSizeBuff) lstrcpynW(pszSizeBuff, szCurrentSize, cchMaxSizeChars);
 388     return S_OK;
 389 }
 390
 391 /***********************************************************************
 392  *      GetThemeAppProperties                               (UXTHEME.@)
 393  */
 394 DWORD WINAPI GetThemeAppProperties(void)
 395 {
 396     return dwThemeAppProperties;
 397 }
 398
 399 /***********************************************************************
 400  *      SetThemeAppProperties                               (UXTHEME.@)
 401  */
 402 void WINAPI SetThemeAppProperties(DWORD dwFlags)
 403 {
 404     TRACE("(0x%08lx)\n", dwFlags);
 405     dwThemeAppProperties = dwFlags;
 406 }
 407
 408 /***********************************************************************
 409  *      CloseThemeData                                      (UXTHEME.@)
 410  */
 411 HRESULT WINAPI CloseThemeData(HTHEME hTheme)
 412 {
 413     TRACE("(%p)\n", hTheme);
 414     if(!hTheme)
 415         return E_HANDLE;
 416     return MSSTYLES_CloseThemeClass(hTheme);
 417 }
 418
 419 /***********************************************************************
 420  *      HitTestThemeBackground                              (UXTHEME.@)
 421  */
 422 HRESULT WINAPI HitTestThemeBackground(HTHEME hTheme, HDC hdc, int iPartId,
 423                                      int iStateId, DWORD dwOptions,
 424                                      const RECT *pRect, HRGN hrgn,
 425                                      POINT ptTest, WORD *pwHitTestCode)
 426 {
 427     FIXME("%d %d 0x%08lx: stub\n", iPartId, iStateId, dwOptions);
 428     if(!hTheme)
 429         return E_HANDLE;
 430     return ERROR_CALL_NOT_IMPLEMENTED;
 431 }
 432
 433 /***********************************************************************
 434  *      IsThemePartDefined                                  (UXTHEME.@)
 435  */
 436 BOOL WINAPI IsThemePartDefined(HTHEME hTheme, int iPartId, int iStateId)
 437 {
 438     TRACE("(%p,%d,%d)\n", hTheme, iPartId, iStateId);
 439     if(!hTheme) {
 440         SetLastError(E_HANDLE);
 441         return FALSE;
 442     }
 443     if(MSSTYLES_FindPartState(hTheme, iPartId, iStateId, NULL))
 444         return TRUE;
 445     return FALSE;
 446 }
 447
 448 /***********************************************************************
 449  *      GetThemeDocumentationProperty                       (UXTHEME.@)
 450  *
 451  * Try and retrieve the documentation property from string resources
 452  * if that fails, get it from the [documentation] section of themes.ini
 453  */
 454 HRESULT WINAPI GetThemeDocumentationProperty(LPCWSTR pszThemeName,
 455                                              LPCWSTR pszPropertyName,
 456                                              LPWSTR pszValueBuff,
 457                                              int cchMaxValChars)
 458 {
 459     const WORD wDocToRes[] = {
 460         TMT_DISPLAYNAME,5000,
 461         TMT_TOOLTIP,5001,
 462         TMT_COMPANY,5002,
 463         TMT_AUTHOR,5003,
 464         TMT_COPYRIGHT,5004,
 465         TMT_URL,5005,
 466         TMT_VERSION,5006,
 467         TMT_DESCRIPTION,5007
 468     };
 469
 470     PTHEME_FILE pt;
 471     HRESULT hr;
 472     unsigned int i;
 473     int iDocId;
 474     TRACE("(%s,%s,%p,%d)\n", debugstr_w(pszThemeName), debugstr_w(pszPropertyName),
 475           pszValueBuff, cchMaxValChars);
 476
 477     hr = MSSTYLES_OpenThemeFile(pszThemeName, NULL, NULL, &pt);
 478     if(FAILED(hr)) return hr;
 479
 480     /* Try to load from string resources */
 481     hr = E_PROP_ID_UNSUPPORTED;
 482     if(MSSTYLES_LookupProperty(pszPropertyName, NULL, &iDocId)) {
 483         for(i=0; i<sizeof(wDocToRes)/sizeof(wDocToRes[0]); i+=2) {
 484             if(wDocToRes[i] == iDocId) {
 485                 if(LoadStringW(pt->hTheme, wDocToRes[i+1], pszValueBuff, cchMaxValChars)) {
 486                     hr = S_OK;
 487                     break;
 488                 }
 489             }
 490         }
 491     }
 492     /* If loading from string resource failed, try getting it from the theme.ini */
 493     if(FAILED(hr)) {
 494         PUXINI_FILE uf = MSSTYLES_GetThemeIni(pt);
 495         if(UXINI_FindSection(uf, szIniDocumentation)) {
 496             LPCWSTR lpValue;
 497             DWORD dwLen;
 498             if(UXINI_FindValue(uf, pszPropertyName, &lpValue, &dwLen)) {
 499                 lstrcpynW(pszValueBuff, lpValue, min(dwLen+1,cchMaxValChars));
 500                 hr = S_OK;
 501             }
 502         }
 503         UXINI_CloseINI(uf);
 504     }
 505
 506     MSSTYLES_CloseThemeFile(pt);
 507     return hr;
 508 }
 509
 510 /**********************************************************************
 511  *      Undocumented functions
 512  */
 513
 514 /**********************************************************************
 515  *      QueryThemeServices                                 (UXTHEME.1)
 516  *
 517  * RETURNS
 518  *     some kind of status flag
 519  */
 520 DWORD WINAPI QueryThemeServices()
 521 {
 522     FIXME("stub\n");
 523     return 3; /* This is what is returned under XP in most cases */
 524 }
 525
 526
 527 /**********************************************************************
 528  *      OpenThemeFile                                      (UXTHEME.2)
 529  *
 530  * Opens a theme file, which can be used to change the current theme, etc
 531  *
 532  * PARAMS
 533  *     pszThemeFileName    Path to a msstyles theme file
 534  *     pszColorName        Color defined in the theme, eg. NormalColor
 535  *     pszSizeName         Size defined in the theme, eg. NormalSize
 536  *     hThemeFile          Handle to theme file
 537  */
 538 HRESULT WINAPI OpenThemeFile(LPCWSTR pszThemeFileName, LPCWSTR pszColorName,
 539                              LPCWSTR pszSizeName, HTHEMEFILE *hThemeFile,
 540                              DWORD unknown)
 541 {
 542     TRACE("(%s,%s,%s,%p,%ld)\n", debugstr_w(pszThemeFileName),
 543           debugstr_w(pszColorName), debugstr_w(pszSizeName),
 544           hThemeFile, unknown);
 545     return MSSTYLES_OpenThemeFile(pszThemeFileName, pszColorName, pszSizeName, (PTHEME_FILE*)hThemeFile);
 546 }
 547
 548 /**********************************************************************
 549  *      CloseThemeFile                                     (UXTHEME.3)
 550  *
 551  * Releases theme file handle returned by OpenThemeFile
 552  *
 553  * PARAMS
 554  *     hThemeFile           Handle to theme file
 555  */
 556 HRESULT WINAPI CloseThemeFile(HTHEMEFILE hThemeFile)
 557 {
 558     TRACE("(%p)\n", hThemeFile);
 559     MSSTYLES_CloseThemeFile(hThemeFile);
 560     return S_OK;
 561 }
 562
 563 /**********************************************************************
 564  *      ApplyTheme                                         (UXTHEME.4)
 565  *
 566  * Set a theme file to be the currently active theme
 567  *
 568  * PARAMS
 569  *     hThemeFile           Handle to theme file
 570  *     unknown              See notes
 571  *     hWnd                 Window requesting the theme change
 572  *
 573  * NOTES
 574  * I'm not sure what the second parameter is (the datatype is likely wrong), other then this:
 575  * Under XP if I pass
 576  * char b[] = "";
 577  *   the theme is applied with the screen redrawing really badly (flickers)
 578  * char b[] = "\0"; where \0 can be one or more of any character, makes no difference
 579  *   the theme is applied smoothly (screen does not flicker)
 580  * char *b = "\0" or NULL; where \0 can be zero or more of any character, makes no difference
 581  *   the function fails returning invalid parameter...very strange
 582  */
 583 HRESULT WINAPI ApplyTheme(HTHEMEFILE hThemeFile, char *unknown, HWND hWnd)
 584 {
 585     HRESULT hr;
 586     TRACE("(%p,%s,%p)\n", hThemeFile, unknown, hWnd);
 587     hr = UXTHEME_SetActiveTheme(hThemeFile);
 588     UXTHEME_broadcast_msg (NULL, WM_THEMECHANGED);
 589     return hr;
 590 }
 591
 592 /**********************************************************************
 593  *      GetThemeDefaults                                   (UXTHEME.7)
 594  *
 595  * Get the default color & size for a theme
 596  *
 597  * PARAMS
 598  *     pszThemeFileName    Path to a msstyles theme file
 599  *     pszColorName        Buffer to receive the default color name
 600  *     dwColorNameLen      Length, in characters, of color name buffer
 601  *     pszSizeName         Buffer to receive the default size name
 602  *     dwSizeNameLen       Length, in characters, of size name buffer
 603  */
 604 HRESULT WINAPI GetThemeDefaults(LPCWSTR pszThemeFileName, LPWSTR pszColorName,
 605                                 DWORD dwColorNameLen, LPWSTR pszSizeName,
 606                                 DWORD dwSizeNameLen)
 607 {
 608     PTHEME_FILE pt;
 609     HRESULT hr;
 610     TRACE("(%s,%p,%ld,%p,%ld)\n", debugstr_w(pszThemeFileName),
 611           pszColorName, dwColorNameLen,
 612           pszSizeName, dwSizeNameLen);
 613
 614     hr = MSSTYLES_OpenThemeFile(pszThemeFileName, NULL, NULL, &pt);
 615     if(FAILED(hr)) return hr;
 616
 617     lstrcpynW(pszColorName, pt->pszSelectedColor, dwColorNameLen);
 618     lstrcpynW(pszSizeName, pt->pszSelectedSize, dwSizeNameLen);
 619
 620     MSSTYLES_CloseThemeFile(pt);
 621     return S_OK;
 622 }
 623
 624 /**********************************************************************
 625  *      EnumThemes                                         (UXTHEME.8)
 626  *
 627  * Enumerate available themes, calls specified EnumThemeProc for each
 628  * theme found. Passes lpData through to callback function.
 629  *
 630  * PARAMS
 631  *     pszThemePath        Path containing themes
 632  *     callback            Called for each theme found in path
 633  *     lpData              Passed through to callback
 634  */
 635 HRESULT WINAPI EnumThemes(LPCWSTR pszThemePath, EnumThemeProc callback,
 636                           LPVOID lpData)
 637 {
 638     WCHAR szDir[MAX_PATH];
 639     WCHAR szPath[MAX_PATH];
 640     static const WCHAR szStar[] = {'*','.','*','\0'};
 641     static const WCHAR szFormat[] = {'%','s','%','s','\\','%','s','.','m','s','s','t','y','l','e','s','\0'};
 642     static const WCHAR szDisplayName[] = {'d','i','s','p','l','a','y','n','a','m','e','\0'};
 643     static const WCHAR szTooltip[] = {'t','o','o','l','t','i','p','\0'};
 644     WCHAR szName[60];
 645     WCHAR szTip[60];
 646     HANDLE hFind;
 647     WIN32_FIND_DATAW wfd;
 648     HRESULT hr;
 649
 650     TRACE("(%s,%p,%p)\n", debugstr_w(pszThemePath), callback, lpData);
 651
 652     if(!pszThemePath || !callback)
 653         return E_POINTER;
 654
 655     lstrcpyW(szDir, pszThemePath);
 656     PathAddBackslashW(szDir);
 657
 658     lstrcpyW(szPath, szDir);
 659     lstrcatW(szPath, szStar);
 660     TRACE("searching %s\n", debugstr_w(szPath));
 661
 662     hFind = FindFirstFileW(szPath, &wfd);
 663     if(hFind != INVALID_HANDLE_VALUE) {
 664         do {
 665             if(wfd.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY
 666                && !(wfd.cFileName[0] == '.' && ((wfd.cFileName[1] == '.' && wfd.cFileName[2] == 0) || wfd.cFileName[1] == 0))) {
 667                 wsprintfW(szPath, szFormat, szDir, wfd.cFileName, wfd.cFileName);
 668
 669                 hr = GetThemeDocumentationProperty(szPath, szDisplayName, szName, sizeof(szName)/sizeof(szName[0]));
 670                 if(SUCCEEDED(hr))
 671                     hr = GetThemeDocumentationProperty(szPath, szTooltip, szTip, sizeof(szTip)/sizeof(szTip[0]));
 672                 if(SUCCEEDED(hr)) {
 673                     TRACE("callback(%s,%s,%s,%p)\n", debugstr_w(szPath), debugstr_w(szName), debugstr_w(szTip), lpData);
 674                     if(!callback(NULL, szPath, szName, szTip, NULL, lpData)) {
 675                         TRACE("callback ended enum\n");
 676                         break;
 677                     }
 678                 }
 679             }
 680         } while(FindNextFileW(hFind, &wfd));
 681         FindClose(hFind);
 682     }
 683     return S_OK;
 684 }
 685
 686
 687 /**********************************************************************
 688  *      EnumThemeColors                                    (UXTHEME.9)
 689  *
 690  * Enumerate theme colors available with a particular size
 691  *
 692  * PARAMS
 693  *     pszThemeFileName    Path to a msstyles theme file
 694  *     pszSizeName         Theme size to enumerate available colors
 695  *                         If NULL the default theme size is used
 696  *     dwColorNum          Color index to retrieve, increment from 0
 697  *     pszColorName        Output color name
 698  *
 699  * RETURNS
 700  *     S_OK on success
 701  *     E_PROP_ID_UNSUPPORTED when dwColorName does not refer to a color
 702  *          or when pszSizeName does not refer to a valid size
 703  *
 704  * NOTES
 705  * XP fails with E_POINTER when pszColorName points to a buffer smaller then 605
 706  * characters
 707  *
 708  * Not very efficient that I'm opening & validating the theme every call, but
 709  * this is undocumented and almost never called..
 710  * (and this is how windows works too)
 711  */
 712 HRESULT WINAPI EnumThemeColors(LPWSTR pszThemeFileName, LPWSTR pszSizeName,
 713                                DWORD dwColorNum, LPWSTR pszColorName)
 714 {
 715     PTHEME_FILE pt;
 716     HRESULT hr;
 717     LPWSTR tmp;
 718     TRACE("(%s,%s,%ld)\n", debugstr_w(pszThemeFileName),
 719           debugstr_w(pszSizeName), dwColorNum);
 720
 721     hr = MSSTYLES_OpenThemeFile(pszThemeFileName, NULL, pszSizeName, &pt);
 722     if(FAILED(hr)) return hr;
 723
 724     tmp = pt->pszAvailColors;
 725     while(dwColorNum && *tmp) {
 726         dwColorNum--;
 727         tmp += lstrlenW(tmp)+1;
 728     }
 729     if(!dwColorNum && *tmp) {
 730         TRACE("%s\n", debugstr_w(tmp));
 731         lstrcpyW(pszColorName, tmp);
 732     }
 733     else
 734         hr = E_PROP_ID_UNSUPPORTED;
 735
 736     MSSTYLES_CloseThemeFile(pt);
 737     return hr;
 738 }
 739
 740 /**********************************************************************
 741  *      EnumThemeSizes                                     (UXTHEME.10)
 742  *
 743  * Enumerate theme colors available with a particular size
 744  *
 745  * PARAMS
 746  *     pszThemeFileName    Path to a msstyles theme file
 747  *     pszColorName        Theme color to enumerate available sizes
 748  *                         If NULL the default theme color is used
 749  *     dwSizeNum           Size index to retrieve, increment from 0
 750  *     pszSizeName         Output size name
 751  *
 752  * RETURNS
 753  *     S_OK on success
 754  *     E_PROP_ID_UNSUPPORTED when dwSizeName does not refer to a size
 755  *          or when pszColorName does not refer to a valid color
 756  *
 757  * NOTES
 758  * XP fails with E_POINTER when pszSizeName points to a buffer smaller then 605
 759  * characters
 760  *
 761  * Not very efficient that I'm opening & validating the theme every call, but
 762  * this is undocumented and almost never called..
 763  * (and this is how windows works too)
 764  */
 765 HRESULT WINAPI EnumThemeSizes(LPWSTR pszThemeFileName, LPWSTR pszColorName,
 766                               DWORD dwSizeNum, LPWSTR pszSizeName)
 767 {
 768     PTHEME_FILE pt;
 769     HRESULT hr;
 770     LPWSTR tmp;
 771     TRACE("(%s,%s,%ld)\n", debugstr_w(pszThemeFileName),
 772           debugstr_w(pszColorName), dwSizeNum);
 773
 774     hr = MSSTYLES_OpenThemeFile(pszThemeFileName, pszColorName, NULL, &pt);
 775     if(FAILED(hr)) return hr;
 776
 777     tmp = pt->pszAvailSizes;
 778     while(dwSizeNum && *tmp) {
 779         dwSizeNum--;
 780         tmp += lstrlenW(tmp)+1;
 781     }
 782     if(!dwSizeNum && *tmp) {
 783         TRACE("%s\n", debugstr_w(tmp));
 784         lstrcpyW(pszSizeName, tmp);
 785     }
 786     else
 787         hr = E_PROP_ID_UNSUPPORTED;
 788
 789     MSSTYLES_CloseThemeFile(pt);
 790     return hr;
 791 }
 792
 793 /**********************************************************************
 794  *      ParseThemeIniFile                                  (UXTHEME.11)
 795  *
 796  * Enumerate data in a theme INI file.
 797  *
 798  * PARAMS
 799  *     pszIniFileName      Path to a theme ini file
 800  *     pszUnknown          Cannot be NULL, L"" is valid
 801  *     callback            Called for each found entry
 802  *     lpData              Passed through to callback
 803  *
 804  * RETURNS
 805  *     S_OK on success
 806  *     0x800706488 (Unknown property) when enumeration is canceled from callback
 807  *
 808  * NOTES
 809  * When pszUnknown is NULL the callback is never called, the value does not seem to surve
 810  * any other purpose
 811  */
 812 HRESULT WINAPI ParseThemeIniFile(LPCWSTR pszIniFileName, LPWSTR pszUnknown,
 813                                  ParseThemeIniFileProc callback, LPVOID lpData)
 814 {
 815     FIXME("%s %s: stub\n", debugstr_w(pszIniFileName), debugstr_w(pszUnknown));
 816     return ERROR_CALL_NOT_IMPLEMENTED;
 817 }
 818
 819 /**********************************************************************
 820  *      CheckThemeSignature                                (UXTHEME.29)
 821  *
 822  * Validates the signature of a theme file
 823  *
 824  * PARAMS
 825  *     pszIniFileName      Path to a theme file
 826  */
 827 HRESULT WINAPI CheckThemeSignature(LPCWSTR pszThemeFileName)
 828 {
 829     PTHEME_FILE pt;
 830     HRESULT hr;
 831     TRACE("(%s)\n", debugstr_w(pszThemeFileName));
 832     hr = MSSTYLES_OpenThemeFile(pszThemeFileName, NULL, NULL, &pt);
 833     if(FAILED(hr))
 834         return hr;
 835     MSSTYLES_CloseThemeFile(pt);
 836     return S_OK;
 837 }