Fix gcc 4.0 -Wpointer-sign warnings.
[wine] / 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
66 BOOL bThemeActive = FALSE;
67 WCHAR szCurrentTheme[MAX_PATH];
68 WCHAR szCurrentColor[64];
69 WCHAR szCurrentSize[64];
70
71 /***********************************************************************/
72
73 /***********************************************************************
74  *      UXTHEME_LoadTheme
75  *
76  * Set the current active theme from the registry
77  */
78 static void UXTHEME_LoadTheme(void)
79 {
80     HKEY hKey;
81     LONG buffsize;
82     HRESULT hr;
83     WCHAR tmp[10];
84     PTHEME_FILE pt;
85
86     /* Get current theme configuration */
87     if(!RegOpenKeyW(HKEY_CURRENT_USER, szThemeManager, &hKey)) {
88         TRACE("Loading theme config\n");
89         buffsize = sizeof(tmp)/sizeof(tmp[0]);
90         if(!RegQueryValueExW(hKey, szThemeActive, NULL, NULL, (LPBYTE)tmp, &buffsize)) {
91             bThemeActive = (tmp[0] != '0');
92         }
93         else {
94             bThemeActive = FALSE;
95             TRACE("Failed to get ThemeActive: %ld\n", GetLastError());
96         }
97         buffsize = sizeof(szCurrentColor)/sizeof(szCurrentColor[0]);
98         if(RegQueryValueExW(hKey, szColorName, NULL, NULL, (LPBYTE)szCurrentColor, &buffsize))
99             szCurrentColor[0] = '\0';
100         buffsize = sizeof(szCurrentSize)/sizeof(szCurrentSize[0]);
101         if(RegQueryValueExW(hKey, szSizeName, NULL, NULL, (LPBYTE)szCurrentSize, &buffsize))
102             szCurrentSize[0] = '\0';
103         if(SHRegGetPathW(hKey, NULL, szDllName, szCurrentTheme, 0))
104             szCurrentTheme[0] = '\0';
105         RegCloseKey(hKey);
106     }
107     else
108         TRACE("Failed to open theme registry key\n");
109
110     if(bThemeActive) {
111         /* Make sure the theme requested is actually valid */
112         hr = MSSTYLES_OpenThemeFile(szCurrentTheme,
113                                     szCurrentColor[0]?szCurrentColor:NULL,
114                                     szCurrentSize[0]?szCurrentSize:NULL,
115                                     &pt);
116         if(FAILED(hr)) {
117             bThemeActive = FALSE;
118             szCurrentTheme[0] = '\0';
119             szCurrentColor[0] = '\0';
120             szCurrentSize[0] = '\0';
121         }
122         else {
123             /* Make sure the global color & size match the theme */
124             lstrcpynW(szCurrentColor, pt->pszSelectedColor, sizeof(szCurrentColor)/sizeof(szCurrentColor[0]));
125             lstrcpynW(szCurrentSize, pt->pszSelectedSize, sizeof(szCurrentSize)/sizeof(szCurrentSize[0]));
126
127             MSSTYLES_SetActiveTheme(pt);
128             TRACE("Theme active: %s %s %s\n", debugstr_w(szCurrentTheme),
129                 debugstr_w(szCurrentColor), debugstr_w(szCurrentSize));
130             MSSTYLES_CloseThemeFile(pt);
131         }
132     }
133     if(!bThemeActive) {
134         MSSTYLES_SetActiveTheme(NULL);
135         TRACE("Themeing not active\n");
136     }
137 }
138
139 /***********************************************************************
140  *      UXTHEME_SetActiveTheme
141  *
142  * Change the current active theme
143  */
144 HRESULT UXTHEME_SetActiveTheme(PTHEME_FILE tf)
145 {
146     HKEY hKey;
147     WCHAR tmp[2];
148     HRESULT hr;
149
150     hr = MSSTYLES_SetActiveTheme(tf);
151     if(FAILED(hr))
152         return hr;
153     if(tf) {
154         bThemeActive = TRUE;
155         lstrcpynW(szCurrentTheme, tf->szThemeFile, sizeof(szCurrentTheme)/sizeof(szCurrentTheme[0]));
156         lstrcpynW(szCurrentColor, tf->pszSelectedColor, sizeof(szCurrentColor)/sizeof(szCurrentColor[0]));
157         lstrcpynW(szCurrentSize, tf->pszSelectedSize, sizeof(szCurrentSize)/sizeof(szCurrentSize[0]));
158     }
159     else {
160         bThemeActive = FALSE;
161         szCurrentTheme[0] = '\0';
162         szCurrentColor[0] = '\0';
163         szCurrentSize[0] = '\0';
164     }
165
166     TRACE("Writing theme config to registry\n");
167     if(!RegCreateKeyW(HKEY_CURRENT_USER, szThemeManager, &hKey)) {
168         tmp[0] = bThemeActive?'1':'0';
169         tmp[1] = '\0';
170         RegSetValueExW(hKey, szThemeActive, 0, REG_SZ, (const BYTE*)tmp, sizeof(WCHAR)*2);
171         if(bThemeActive) {
172             RegSetValueExW(hKey, szColorName, 0, REG_SZ, (const BYTE*)szCurrentColor, 
173                 (lstrlenW(szCurrentColor)+1)*sizeof(WCHAR));
174             RegSetValueExW(hKey, szSizeName, 0, REG_SZ, (const BYTE*)szCurrentSize, 
175                 (lstrlenW(szCurrentSize)+1)*sizeof(WCHAR));
176             RegSetValueExW(hKey, szDllName, 0, REG_SZ, (const BYTE*)szCurrentTheme, 
177                 (lstrlenW(szCurrentTheme)+1)*sizeof(WCHAR));
178         }
179         else {
180             RegDeleteValueW(hKey, szColorName);
181             RegDeleteValueW(hKey, szSizeName);
182             RegDeleteValueW(hKey, szDllName);
183
184         }
185         RegCloseKey(hKey);
186     }
187     else
188         TRACE("Failed to open theme registry key\n");
189     return hr;
190 }
191
192 /***********************************************************************
193  *      UXTHEME_InitSystem
194  */
195 void UXTHEME_InitSystem(HINSTANCE hInst)
196 {
197     static const WCHAR szWindowTheme[] = {
198         'u','x','_','t','h','e','m','e','\0'
199     };
200     static const WCHAR szSubAppName[] = {
201         'u','x','_','s','u','b','a','p','p','\0'
202     };
203     static const WCHAR szSubIdList[] = {
204         'u','x','_','s','u','b','i','d','l','s','t','\0'
205     };
206
207     hDllInst = hInst;
208
209     atWindowTheme = GlobalAddAtomW(szWindowTheme);
210     atSubAppName  = GlobalAddAtomW(szSubAppName);
211     atSubIdList   = GlobalAddAtomW(szSubIdList);
212
213     UXTHEME_LoadTheme();
214 }
215
216 /***********************************************************************
217  *      IsAppThemed                                         (UXTHEME.@)
218  */
219 BOOL WINAPI IsAppThemed(void)
220 {
221     return IsThemeActive();
222 }
223
224 /***********************************************************************
225  *      IsThemeActive                                       (UXTHEME.@)
226  */
227 BOOL WINAPI IsThemeActive(void)
228 {
229     TRACE("\n");
230     return bThemeActive;
231 }
232
233 /***********************************************************************
234  *      EnableTheming                                       (UXTHEME.@)
235  *
236  * NOTES
237  * This is a global and persistent change
238  */
239 HRESULT WINAPI EnableTheming(BOOL fEnable)
240 {
241     HKEY hKey;
242     WCHAR szEnabled[] = {'0','\0'};
243
244     TRACE("(%d)\n", fEnable);
245
246     if(fEnable != bThemeActive) {
247         bThemeActive = fEnable;
248         if(bThemeActive) szEnabled[0] = '1';
249         if(!RegOpenKeyW(HKEY_CURRENT_USER, szThemeManager, &hKey)) {
250             RegSetValueExW(hKey, szThemeActive, 0, REG_SZ, (LPBYTE)szEnabled, sizeof(WCHAR));
251             RegCloseKey(hKey);
252         }
253         PostMessageW(HWND_BROADCAST, WM_THEMECHANGED, 0, 0);
254     }
255     return S_OK;
256 }
257
258 /***********************************************************************
259  *      UXTHEME_SetWindowProperty
260  *
261  * I'm using atoms as there may be large numbers of duplicated strings
262  * and they do the work of keeping memory down as a cause of that quite nicely
263  */
264 HRESULT UXTHEME_SetWindowProperty(HWND hwnd, ATOM aProp, LPCWSTR pszValue)
265 {
266     ATOM oldValue = (ATOM)(size_t)RemovePropW(hwnd, MAKEINTATOMW(aProp));
267     if(oldValue)
268         DeleteAtom(oldValue);
269     if(pszValue) {
270         ATOM atValue = AddAtomW(pszValue);
271         if(!atValue
272            || !SetPropW(hwnd, MAKEINTATOMW(aProp), (LPWSTR)MAKEINTATOMW(atValue))) {
273             HRESULT hr = HRESULT_FROM_WIN32(GetLastError());
274             if(atValue) DeleteAtom(atValue);
275             return hr;
276         }
277     }
278     return S_OK;
279 }
280
281 LPWSTR UXTHEME_GetWindowProperty(HWND hwnd, ATOM aProp, LPWSTR pszBuffer, int dwLen)
282 {
283     ATOM atValue = (ATOM)(size_t)GetPropW(hwnd, MAKEINTATOMW(aProp));
284     if(atValue) {
285         if(GetAtomNameW(atValue, pszBuffer, dwLen))
286             return pszBuffer;
287         TRACE("property defined, but unable to get value\n");
288     }
289     return NULL;
290 }
291
292 /***********************************************************************
293  *      OpenThemeData                                       (UXTHEME.@)
294  */
295 HTHEME WINAPI OpenThemeData(HWND hwnd, LPCWSTR pszClassList)
296 {
297     WCHAR szAppBuff[256];
298     WCHAR szClassBuff[256];
299     LPCWSTR pszAppName;
300     LPCWSTR pszUseClassList;
301     HTHEME hTheme;
302     TRACE("(%p,%s)\n", hwnd, debugstr_w(pszClassList));
303     if(!bThemeActive)
304         return NULL;
305
306     pszAppName = UXTHEME_GetWindowProperty(hwnd, atSubAppName, szAppBuff, sizeof(szAppBuff)/sizeof(szAppBuff[0]));
307     /* If SetWindowTheme was used on the window, that overrides the class list passed to this function */
308     pszUseClassList = UXTHEME_GetWindowProperty(hwnd, atSubIdList, szClassBuff, sizeof(szClassBuff)/sizeof(szClassBuff[0]));
309     if(!pszUseClassList)
310         pszUseClassList = pszClassList;
311
312     hTheme = MSSTYLES_OpenThemeClass(pszAppName, pszUseClassList);
313     if(IsWindow(hwnd))
314         SetPropW(hwnd, MAKEINTATOMW(atWindowTheme), hTheme);
315     return hTheme;
316 }
317
318 /***********************************************************************
319  *      GetWindowTheme                                      (UXTHEME.@)
320  *
321  * Retrieve the last theme opened for a window
322  */
323 HTHEME WINAPI GetWindowTheme(HWND hwnd)
324 {
325     TRACE("(%p)\n", hwnd);
326     return GetPropW(hwnd, MAKEINTATOMW(atWindowTheme));
327 }
328
329 /***********************************************************************
330  *      SetWindowTheme                                      (UXTHEME.@)
331  *
332  * Persistent through the life of the window, even after themes change
333  */
334 HRESULT WINAPI SetWindowTheme(HWND hwnd, LPCWSTR pszSubAppName,
335                               LPCWSTR pszSubIdList)
336 {
337     HRESULT hr;
338     TRACE("(%p,%s,%s)\n", hwnd, debugstr_w(pszSubAppName),
339           debugstr_w(pszSubIdList));
340     hr = UXTHEME_SetWindowProperty(hwnd, atSubAppName, pszSubAppName);
341     if(SUCCEEDED(hr))
342         hr = UXTHEME_SetWindowProperty(hwnd, atSubIdList, pszSubIdList);
343     if(SUCCEEDED(hr))
344         PostMessageW(hwnd, WM_THEMECHANGED, 0, 0);
345     return hr;
346 }
347
348 /***********************************************************************
349  *      GetCurrentThemeName                                 (UXTHEME.@)
350  */
351 HRESULT WINAPI GetCurrentThemeName(LPWSTR pszThemeFileName, int dwMaxNameChars,
352                                    LPWSTR pszColorBuff, int cchMaxColorChars,
353                                    LPWSTR pszSizeBuff, int cchMaxSizeChars)
354 {
355     if(!bThemeActive)
356         return E_PROP_ID_UNSUPPORTED;
357     if(pszThemeFileName) lstrcpynW(pszThemeFileName, szCurrentTheme, dwMaxNameChars);
358     if(pszColorBuff) lstrcpynW(pszColorBuff, szCurrentColor, cchMaxColorChars);
359     if(pszSizeBuff) lstrcpynW(pszSizeBuff, szCurrentSize, cchMaxSizeChars);
360     return S_OK;
361 }
362
363 /***********************************************************************
364  *      GetThemeAppProperties                               (UXTHEME.@)
365  */
366 DWORD WINAPI GetThemeAppProperties(void)
367 {
368     return dwThemeAppProperties;
369 }
370
371 /***********************************************************************
372  *      SetThemeAppProperties                               (UXTHEME.@)
373  */
374 void WINAPI SetThemeAppProperties(DWORD dwFlags)
375 {
376     TRACE("(0x%08lx)\n", dwFlags);
377     dwThemeAppProperties = dwFlags;
378 }
379
380 /***********************************************************************
381  *      CloseThemeData                                      (UXTHEME.@)
382  */
383 HRESULT WINAPI CloseThemeData(HTHEME hTheme)
384 {
385     TRACE("(%p)\n", hTheme);
386     if(!hTheme)
387         return E_HANDLE;
388     return MSSTYLES_CloseThemeClass(hTheme);
389 }
390
391 /***********************************************************************
392  *      HitTestThemeBackground                              (UXTHEME.@)
393  */
394 HRESULT WINAPI HitTestThemeBackground(HTHEME hTheme, HDC hdc, int iPartId,
395                                      int iStateId, DWORD dwOptions,
396                                      const RECT *pRect, HRGN hrgn,
397                                      POINT ptTest, WORD *pwHitTestCode)
398 {
399     FIXME("%d %d 0x%08lx: stub\n", iPartId, iStateId, dwOptions);
400     if(!hTheme)
401         return E_HANDLE;
402     return ERROR_CALL_NOT_IMPLEMENTED;
403 }
404
405 /***********************************************************************
406  *      IsThemePartDefined                                  (UXTHEME.@)
407  */
408 BOOL WINAPI IsThemePartDefined(HTHEME hTheme, int iPartId, int iStateId)
409 {
410     TRACE("(%p,%d,%d)\n", hTheme, iPartId, iStateId);
411     if(!hTheme) {
412         SetLastError(E_HANDLE);
413         return FALSE;
414     }
415     if(MSSTYLES_FindPartState(hTheme, iPartId, iStateId, NULL))
416         return TRUE;
417     return FALSE;
418 }
419
420 /***********************************************************************
421  *      GetThemeDocumentationProperty                       (UXTHEME.@)
422  *
423  * Try and retrieve the documentation property from string resources
424  * if that fails, get it from the [documentation] section of themes.ini
425  */
426 HRESULT WINAPI GetThemeDocumentationProperty(LPCWSTR pszThemeName,
427                                              LPCWSTR pszPropertyName,
428                                              LPWSTR pszValueBuff,
429                                              int cchMaxValChars)
430 {
431     const WORD wDocToRes[] = {
432         TMT_DISPLAYNAME,5000,
433         TMT_TOOLTIP,5001,
434         TMT_COMPANY,5002,
435         TMT_AUTHOR,5003,
436         TMT_COPYRIGHT,5004,
437         TMT_URL,5005,
438         TMT_VERSION,5006,
439         TMT_DESCRIPTION,5007
440     };
441
442     PTHEME_FILE pt;
443     HRESULT hr;
444     unsigned int i;
445     int iDocId;
446     TRACE("(%s,%s,%p,%d)\n", debugstr_w(pszThemeName), debugstr_w(pszPropertyName),
447           pszValueBuff, cchMaxValChars);
448
449     hr = MSSTYLES_OpenThemeFile(pszThemeName, NULL, NULL, &pt);
450     if(FAILED(hr)) return hr;
451
452     /* Try to load from string resources */
453     hr = E_PROP_ID_UNSUPPORTED;
454     if(MSSTYLES_LookupProperty(pszPropertyName, NULL, &iDocId)) {
455         for(i=0; i<sizeof(wDocToRes)/sizeof(wDocToRes[0]); i+=2) {
456             if(wDocToRes[i] == iDocId) {
457                 if(LoadStringW(pt->hTheme, wDocToRes[i+1], pszValueBuff, cchMaxValChars)) {
458                     hr = S_OK;
459                     break;
460                 }
461             }
462         }
463     }
464     /* If loading from string resource failed, try getting it from the theme.ini */
465     if(FAILED(hr)) {
466         PUXINI_FILE uf = MSSTYLES_GetThemeIni(pt);
467         if(UXINI_FindSection(uf, szIniDocumentation)) {
468             LPCWSTR lpValue;
469             DWORD dwLen;
470             if(UXINI_FindValue(uf, pszPropertyName, &lpValue, &dwLen)) {
471                 lstrcpynW(pszValueBuff, lpValue, min(dwLen+1,cchMaxValChars));
472                 hr = S_OK;
473             }
474         }
475         UXINI_CloseINI(uf);
476     }
477
478     MSSTYLES_CloseThemeFile(pt);
479     return hr;
480 }
481
482 /**********************************************************************
483  *      Undocumented functions
484  */
485
486 /**********************************************************************
487  *      QueryThemeServices                                 (UXTHEME.1)
488  *
489  * RETURNS
490  *     some kind of status flag
491  */
492 DWORD WINAPI QueryThemeServices()
493 {
494     FIXME("stub\n");
495     return 3; /* This is what is returned under XP in most cases */
496 }
497
498
499 /**********************************************************************
500  *      OpenThemeFile                                      (UXTHEME.2)
501  *
502  * Opens a theme file, which can be used to change the current theme, etc
503  *
504  * PARAMS
505  *     pszThemeFileName    Path to a msstyles theme file
506  *     pszColorName        Color defined in the theme, eg. NormalColor
507  *     pszSizeName         Size defined in the theme, eg. NormalSize
508  *     hThemeFile          Handle to theme file
509  */
510 HRESULT WINAPI OpenThemeFile(LPCWSTR pszThemeFileName, LPCWSTR pszColorName,
511                              LPCWSTR pszSizeName, HTHEMEFILE *hThemeFile,
512                              DWORD unknown)
513 {
514     TRACE("(%s,%s,%s,%p,%ld)\n", debugstr_w(pszThemeFileName),
515           debugstr_w(pszColorName), debugstr_w(pszSizeName),
516           hThemeFile, unknown);
517     return MSSTYLES_OpenThemeFile(pszThemeFileName, pszColorName, pszSizeName, (PTHEME_FILE*)hThemeFile);
518 }
519
520 /**********************************************************************
521  *      CloseThemeFile                                     (UXTHEME.3)
522  *
523  * Releases theme file handle returned by OpenThemeFile
524  *
525  * PARAMS
526  *     hThemeFile           Handle to theme file
527  */
528 HRESULT WINAPI CloseThemeFile(HTHEMEFILE hThemeFile)
529 {
530     TRACE("(%p)\n", hThemeFile);
531     MSSTYLES_CloseThemeFile(hThemeFile);
532     return S_OK;
533 }
534
535 /**********************************************************************
536  *      ApplyTheme                                         (UXTHEME.4)
537  *
538  * Set a theme file to be the currently active theme
539  *
540  * PARAMS
541  *     hThemeFile           Handle to theme file
542  *     unknown              See notes
543  *     hWnd                 Window requesting the theme change
544  *
545  * NOTES
546  * I'm not sure what the second parameter is (the datatype is likely wrong), other then this:
547  * Under XP if I pass
548  * char b[] = "";
549  *   the theme is applied with the screen redrawing really badly (flickers)
550  * char b[] = "\0"; where \0 can be one or more of any character, makes no difference
551  *   the theme is applied smoothly (screen does not flicker)
552  * char *b = "\0" or NULL; where \0 can be zero or more of any character, makes no difference
553  *   the function fails returning invalid parameter...very strange
554  */
555 HRESULT WINAPI ApplyTheme(HTHEMEFILE hThemeFile, char *unknown, HWND hWnd)
556 {
557     HRESULT hr;
558     TRACE("(%p,%s,%p)\n", hThemeFile, unknown, hWnd);
559     hr = UXTHEME_SetActiveTheme(hThemeFile);
560     PostMessageW(HWND_BROADCAST, WM_THEMECHANGED, 0, 0);
561     return hr;
562 }
563
564 /**********************************************************************
565  *      GetThemeDefaults                                   (UXTHEME.7)
566  *
567  * Get the default color & size for a theme
568  *
569  * PARAMS
570  *     pszThemeFileName    Path to a msstyles theme file
571  *     pszColorName        Buffer to receive the default color name
572  *     dwColorNameLen      Length, in characters, of color name buffer
573  *     pszSizeName         Buffer to receive the default size name
574  *     dwSizeNameLen       Length, in characters, of size name buffer
575  */
576 HRESULT WINAPI GetThemeDefaults(LPCWSTR pszThemeFileName, LPWSTR pszColorName,
577                                 DWORD dwColorNameLen, LPWSTR pszSizeName,
578                                 DWORD dwSizeNameLen)
579 {
580     PTHEME_FILE pt;
581     HRESULT hr;
582     TRACE("(%s,%p,%ld,%p,%ld)\n", debugstr_w(pszThemeFileName),
583           pszColorName, dwColorNameLen,
584           pszSizeName, dwSizeNameLen);
585
586     hr = MSSTYLES_OpenThemeFile(pszThemeFileName, NULL, NULL, &pt);
587     if(FAILED(hr)) return hr;
588
589     lstrcpynW(pszColorName, pt->pszSelectedColor, dwColorNameLen);
590     lstrcpynW(pszSizeName, pt->pszSelectedSize, dwSizeNameLen);
591
592     MSSTYLES_CloseThemeFile(pt);
593     return S_OK;
594 }
595
596 /**********************************************************************
597  *      EnumThemes                                         (UXTHEME.8)
598  *
599  * Enumerate available themes, calls specified EnumThemeProc for each
600  * theme found. Passes lpData through to callback function.
601  *
602  * PARAMS
603  *     pszThemePath        Path containing themes
604  *     callback            Called for each theme found in path
605  *     lpData              Passed through to callback
606  */
607 HRESULT WINAPI EnumThemes(LPCWSTR pszThemePath, EnumThemeProc callback,
608                           LPVOID lpData)
609 {
610     WCHAR szDir[MAX_PATH];
611     WCHAR szPath[MAX_PATH];
612     static const WCHAR szStar[] = {'*','.','*','\0'};
613     static const WCHAR szFormat[] = {'%','s','%','s','\\','%','s','.','m','s','s','t','y','l','e','s','\0'};
614     static const WCHAR szDisplayName[] = {'d','i','s','p','l','a','y','n','a','m','e','\0'};
615     static const WCHAR szTooltip[] = {'t','o','o','l','t','i','p','\0'};
616     WCHAR szName[60];
617     WCHAR szTip[60];
618     HANDLE hFind;
619     WIN32_FIND_DATAW wfd;
620     HRESULT hr;
621
622     TRACE("(%s,%p,%p)\n", debugstr_w(pszThemePath), callback, lpData);
623
624     if(!pszThemePath || !callback)
625         return E_POINTER;
626
627     lstrcpyW(szDir, pszThemePath);
628     PathAddBackslashW(szDir);
629
630     lstrcpyW(szPath, szDir);
631     lstrcatW(szPath, szStar);
632     TRACE("searching %s\n", debugstr_w(szPath));
633
634     hFind = FindFirstFileW(szPath, &wfd);
635     if(hFind != INVALID_HANDLE_VALUE) {
636         do {
637             if(wfd.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY
638                && !(wfd.cFileName[0] == '.' && ((wfd.cFileName[1] == '.' && wfd.cFileName[2] == 0) || wfd.cFileName[1] == 0))) {
639                 wsprintfW(szPath, szFormat, szDir, wfd.cFileName, wfd.cFileName);
640
641                 hr = GetThemeDocumentationProperty(szPath, szDisplayName, szName, sizeof(szName)/sizeof(szName[0]));
642                 if(SUCCEEDED(hr))
643                     hr = GetThemeDocumentationProperty(szPath, szTooltip, szTip, sizeof(szTip)/sizeof(szTip[0]));
644                 if(SUCCEEDED(hr)) {
645                     TRACE("callback(%s,%s,%s,%p)\n", debugstr_w(szPath), debugstr_w(szName), debugstr_w(szTip), lpData);
646                     if(!callback(NULL, szPath, szName, szTip, NULL, lpData)) {
647                         TRACE("callback ended enum\n");
648                         break;
649                     }
650                 }
651             }
652         } while(FindNextFileW(hFind, &wfd));
653         FindClose(hFind);
654     }
655     return S_OK;
656 }
657
658
659 /**********************************************************************
660  *      EnumThemeColors                                    (UXTHEME.9)
661  *
662  * Enumerate theme colors available with a particular size
663  *
664  * PARAMS
665  *     pszThemeFileName    Path to a msstyles theme file
666  *     pszSizeName         Theme size to enumerate available colors
667  *                         If NULL the default theme size is used
668  *     dwColorNum          Color index to retrieve, increment from 0
669  *     pszColorName        Output color name
670  *
671  * RETURNS
672  *     S_OK on success
673  *     E_PROP_ID_UNSUPPORTED when dwColorName does not refer to a color
674  *          or when pszSizeName does not refer to a valid size
675  *
676  * NOTES
677  * XP fails with E_POINTER when pszColorName points to a buffer smaller then 605
678  * characters
679  *
680  * Not very efficient that I'm opening & validating the theme every call, but
681  * this is undocumented and almost never called..
682  * (and this is how windows works too)
683  */
684 HRESULT WINAPI EnumThemeColors(LPWSTR pszThemeFileName, LPWSTR pszSizeName,
685                                DWORD dwColorNum, LPWSTR pszColorName)
686 {
687     PTHEME_FILE pt;
688     HRESULT hr;
689     LPWSTR tmp;
690     TRACE("(%s,%s,%ld)\n", debugstr_w(pszThemeFileName),
691           debugstr_w(pszSizeName), dwColorNum);
692
693     hr = MSSTYLES_OpenThemeFile(pszThemeFileName, NULL, pszSizeName, &pt);
694     if(FAILED(hr)) return hr;
695
696     tmp = pt->pszAvailColors;
697     while(dwColorNum && *tmp) {
698         dwColorNum--;
699         tmp += lstrlenW(tmp)+1;
700     }
701     if(!dwColorNum && *tmp) {
702         TRACE("%s\n", debugstr_w(tmp));
703         lstrcpyW(pszColorName, tmp);
704     }
705     else
706         hr = E_PROP_ID_UNSUPPORTED;
707
708     MSSTYLES_CloseThemeFile(pt);
709     return hr;
710 }
711
712 /**********************************************************************
713  *      EnumThemeSizes                                     (UXTHEME.10)
714  *
715  * Enumerate theme colors available with a particular size
716  *
717  * PARAMS
718  *     pszThemeFileName    Path to a msstyles theme file
719  *     pszColorName        Theme color to enumerate available sizes
720  *                         If NULL the default theme color is used
721  *     dwSizeNum           Size index to retrieve, increment from 0
722  *     pszSizeName         Output size name
723  *
724  * RETURNS
725  *     S_OK on success
726  *     E_PROP_ID_UNSUPPORTED when dwSizeName does not refer to a size
727  *          or when pszColorName does not refer to a valid color
728  *
729  * NOTES
730  * XP fails with E_POINTER when pszSizeName points to a buffer smaller then 605
731  * characters
732  *
733  * Not very efficient that I'm opening & validating the theme every call, but
734  * this is undocumented and almost never called..
735  * (and this is how windows works too)
736  */
737 HRESULT WINAPI EnumThemeSizes(LPWSTR pszThemeFileName, LPWSTR pszColorName,
738                               DWORD dwSizeNum, LPWSTR pszSizeName)
739 {
740     PTHEME_FILE pt;
741     HRESULT hr;
742     LPWSTR tmp;
743     TRACE("(%s,%s,%ld)\n", debugstr_w(pszThemeFileName),
744           debugstr_w(pszColorName), dwSizeNum);
745
746     hr = MSSTYLES_OpenThemeFile(pszThemeFileName, pszColorName, NULL, &pt);
747     if(FAILED(hr)) return hr;
748
749     tmp = pt->pszAvailSizes;
750     while(dwSizeNum && *tmp) {
751         dwSizeNum--;
752         tmp += lstrlenW(tmp)+1;
753     }
754     if(!dwSizeNum && *tmp) {
755         TRACE("%s\n", debugstr_w(tmp));
756         lstrcpyW(pszSizeName, tmp);
757     }
758     else
759         hr = E_PROP_ID_UNSUPPORTED;
760
761     MSSTYLES_CloseThemeFile(pt);
762     return hr;
763 }
764
765 /**********************************************************************
766  *      ParseThemeIniFile                                  (UXTHEME.11)
767  *
768  * Enumerate data in a theme INI file.
769  *
770  * PARAMS
771  *     pszIniFileName      Path to a theme ini file
772  *     pszUnknown          Cannot be NULL, L"" is valid
773  *     callback            Called for each found entry
774  *     lpData              Passed through to callback
775  *
776  * RETURNS
777  *     S_OK on success
778  *     0x800706488 (Unknown property) when enumeration is canceled from callback
779  *
780  * NOTES
781  * When pszUnknown is NULL the callback is never called, the value does not seem to surve
782  * any other purpose
783  */
784 HRESULT WINAPI ParseThemeIniFile(LPCWSTR pszIniFileName, LPWSTR pszUnknown,
785                                  ParseThemeIniFileProc callback, LPVOID lpData)
786 {
787     FIXME("%s %s: stub\n", debugstr_w(pszIniFileName), debugstr_w(pszUnknown));
788     return ERROR_CALL_NOT_IMPLEMENTED;
789 }
790
791 /**********************************************************************
792  *      CheckThemeSignature                                (UXTHEME.29)
793  *
794  * Validates the signature of a theme file
795  *
796  * PARAMS
797  *     pszIniFileName      Path to a theme file
798  */
799 HRESULT WINAPI CheckThemeSignature(LPCWSTR pszThemeFileName)
800 {
801     PTHEME_FILE pt;
802     HRESULT hr;
803     TRACE("(%s)\n", debugstr_w(pszThemeFileName));
804     hr = MSSTYLES_OpenThemeFile(pszThemeFileName, NULL, NULL, &pt);
805     if(FAILED(hr))
806         return hr;
807     MSSTYLES_CloseThemeFile(pt);
808     return S_OK;
809 }