2 * ComCatMgr ICatInformation implementation for comcat.dll
4 * Copyright (C) 2002 John K. Hohm
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.
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.
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
22 #include "comcat_private.h"
24 #include "wine/debug.h"
26 WINE_DEFAULT_DEBUG_CHANNEL(ole);
28 static LPENUMCATEGORYINFO COMCAT_IEnumCATEGORYINFO_Construct(LCID lcid);
29 static HRESULT COMCAT_GetCategoryDesc(HKEY key, LCID lcid, PWCHAR pszDesc,
32 struct class_categories {
37 static struct class_categories *COMCAT_PrepareClassCategories(
38 ULONG impl_count, CATID *impl_catids, ULONG req_count, CATID *req_catids);
39 static HRESULT COMCAT_IsClassOfCategories(
40 HKEY key, struct class_categories const* class_categories);
41 static LPENUMGUID COMCAT_CLSID_IEnumGUID_Construct(
42 struct class_categories const* class_categories);
43 static LPENUMGUID COMCAT_CATID_IEnumGUID_Construct(
44 REFCLSID rclsid, LPCWSTR impl_req);
46 /**********************************************************************
47 * COMCAT_ICatInformation_QueryInterface
49 static HRESULT WINAPI COMCAT_ICatInformation_QueryInterface(
50 LPCATINFORMATION iface,
54 ICOM_THIS_MULTI(ComCatMgrImpl, infVtbl, iface);
55 TRACE("\n\tIID:\t%s\n",debugstr_guid(riid));
57 if (This == NULL || ppvObj == NULL) return E_POINTER;
59 return IUnknown_QueryInterface((LPUNKNOWN)&This->unkVtbl, riid, ppvObj);
62 /**********************************************************************
63 * COMCAT_ICatInformation_AddRef
65 static ULONG WINAPI COMCAT_ICatInformation_AddRef(LPCATINFORMATION iface)
67 ICOM_THIS_MULTI(ComCatMgrImpl, infVtbl, iface);
70 if (This == NULL) return E_POINTER;
72 return IUnknown_AddRef((LPUNKNOWN)&This->unkVtbl);
75 /**********************************************************************
76 * COMCAT_ICatInformation_Release
78 static ULONG WINAPI COMCAT_ICatInformation_Release(LPCATINFORMATION iface)
80 ICOM_THIS_MULTI(ComCatMgrImpl, infVtbl, iface);
83 if (This == NULL) return E_POINTER;
85 return IUnknown_Release((LPUNKNOWN)&This->unkVtbl);
88 /**********************************************************************
89 * COMCAT_ICatInformation_EnumCategories
91 static HRESULT WINAPI COMCAT_ICatInformation_EnumCategories(
92 LPCATINFORMATION iface,
94 LPENUMCATEGORYINFO *ppenumCatInfo)
96 /* ICOM_THIS_MULTI(ComCatMgrImpl, infVtbl, iface); */
99 if (iface == NULL || ppenumCatInfo == NULL) return E_POINTER;
101 *ppenumCatInfo = COMCAT_IEnumCATEGORYINFO_Construct(lcid);
102 if (*ppenumCatInfo == NULL) return E_OUTOFMEMORY;
103 IEnumCATEGORYINFO_AddRef(*ppenumCatInfo);
107 /**********************************************************************
108 * COMCAT_ICatInformation_GetCategoryDesc
110 static HRESULT WINAPI COMCAT_ICatInformation_GetCategoryDesc(
111 LPCATINFORMATION iface,
116 /* ICOM_THIS_MULTI(ComCatMgrImpl, infVtbl, iface); */
117 WCHAR keyname[60] = { 'C', 'o', 'm', 'p', 'o', 'n', 'e', 'n',
118 't', ' ', 'C', 'a', 't', 'e', 'g', 'o',
119 'r', 'i', 'e', 's', '\\', 0 };
123 TRACE("\n\tCATID:\t%s\n\tLCID:\t%lX\n",debugstr_guid(rcatid), lcid);
125 if (rcatid == NULL || ppszDesc == NULL) return E_INVALIDARG;
127 /* Open the key for this category. */
128 if (!StringFromGUID2(rcatid, keyname + 21, 39)) return E_FAIL;
129 res = RegOpenKeyExW(HKEY_CLASSES_ROOT, keyname, 0, KEY_READ, &key);
130 if (res != ERROR_SUCCESS) return CAT_E_CATIDNOEXIST;
132 /* Allocate a sensible amount of memory for the description. */
133 *ppszDesc = (PWCHAR) CoTaskMemAlloc(128 * sizeof(WCHAR));
134 if (*ppszDesc == NULL) {
136 return E_OUTOFMEMORY;
139 /* Get the description, and make sure it's null terminated. */
140 res = COMCAT_GetCategoryDesc(key, lcid, *ppszDesc, 128);
143 CoTaskMemFree(*ppszDesc);
150 /**********************************************************************
151 * COMCAT_ICatInformation_EnumClassesOfCategories
153 static HRESULT WINAPI COMCAT_ICatInformation_EnumClassesOfCategories(
154 LPCATINFORMATION iface,
159 LPENUMCLSID *ppenumCLSID)
161 /* ICOM_THIS_MULTI(ComCatMgrImpl, infVtbl, iface); */
162 struct class_categories *categories;
166 if (iface == NULL || ppenumCLSID == NULL ||
167 (cImplemented && rgcatidImpl == NULL) ||
168 (cRequired && rgcatidReq == NULL)) return E_POINTER;
170 categories = COMCAT_PrepareClassCategories(cImplemented, rgcatidImpl,
171 cRequired, rgcatidReq);
172 if (categories == NULL) return E_OUTOFMEMORY;
173 *ppenumCLSID = COMCAT_CLSID_IEnumGUID_Construct(categories);
174 if (*ppenumCLSID == NULL) {
175 HeapFree(GetProcessHeap(), 0, categories);
176 return E_OUTOFMEMORY;
178 IEnumGUID_AddRef(*ppenumCLSID);
182 /**********************************************************************
183 * COMCAT_ICatInformation_IsClassOfCategories
185 static HRESULT WINAPI COMCAT_ICatInformation_IsClassOfCategories(
186 LPCATINFORMATION iface,
193 /* ICOM_THIS_MULTI(ComCatMgrImpl, infVtbl, iface); */
194 WCHAR keyname[45] = { 'C', 'L', 'S', 'I', 'D', '\\', 0 };
196 struct class_categories *categories;
199 if (WINE_TRACE_ON(ole)) {
201 TRACE("\n\tCLSID:\t%s\n\tImplemented %lu\n",debugstr_guid(rclsid),cImplemented);
202 for (count = 0; count < cImplemented; ++count)
203 TRACE("\t\t%s\n",debugstr_guid(&rgcatidImpl[count]));
204 TRACE("\tRequired %lu\n",cRequired);
205 for (count = 0; count < cRequired; ++count)
206 TRACE("\t\t%s\n",debugstr_guid(&rgcatidReq[count]));
209 if ((cImplemented && rgcatidImpl == NULL) ||
210 (cRequired && rgcatidReq == NULL)) return E_POINTER;
212 res = StringFromGUID2(rclsid, keyname + 6, 39);
213 if (FAILED(res)) return res;
215 categories = COMCAT_PrepareClassCategories(cImplemented, rgcatidImpl,
216 cRequired, rgcatidReq);
217 if (categories == NULL) return E_OUTOFMEMORY;
219 res = RegOpenKeyExW(HKEY_CLASSES_ROOT, keyname, 0, KEY_READ, &key);
220 if (res == ERROR_SUCCESS) {
221 res = COMCAT_IsClassOfCategories(key, categories);
223 } else res = S_FALSE;
225 HeapFree(GetProcessHeap(), 0, categories);
230 /**********************************************************************
231 * COMCAT_ICatInformation_EnumImplCategoriesOfClass
233 static HRESULT WINAPI COMCAT_ICatInformation_EnumImplCategoriesOfClass(
234 LPCATINFORMATION iface,
236 LPENUMCATID *ppenumCATID)
238 /* ICOM_THIS_MULTI(ComCatMgrImpl, infVtbl, iface); */
239 WCHAR postfix[24] = { '\\', 'I', 'm', 'p', 'l', 'e', 'm', 'e',
240 'n', 't', 'e', 'd', ' ', 'C', 'a', 't',
241 'e', 'g', 'o', 'r', 'i', 'e', 's', 0 };
243 TRACE("\n\tCLSID:\t%s\n",debugstr_guid(rclsid));
245 if (iface == NULL || rclsid == NULL || ppenumCATID == NULL)
248 *ppenumCATID = COMCAT_CATID_IEnumGUID_Construct(rclsid, postfix);
249 if (*ppenumCATID == NULL) return E_OUTOFMEMORY;
253 /**********************************************************************
254 * COMCAT_ICatInformation_EnumReqCategoriesOfClass
256 static HRESULT WINAPI COMCAT_ICatInformation_EnumReqCategoriesOfClass(
257 LPCATINFORMATION iface,
259 LPENUMCATID *ppenumCATID)
261 /* ICOM_THIS_MULTI(ComCatMgrImpl, infVtbl, iface); */
262 WCHAR postfix[21] = { '\\', 'R', 'e', 'q', 'u', 'i', 'r', 'e',
263 'd', ' ', 'C', 'a', 't', 'e', 'g', 'o',
264 'r', 'i', 'e', 's', 0 };
266 TRACE("\n\tCLSID:\t%s\n",debugstr_guid(rclsid));
268 if (iface == NULL || rclsid == NULL || ppenumCATID == NULL)
271 *ppenumCATID = COMCAT_CATID_IEnumGUID_Construct(rclsid, postfix);
272 if (*ppenumCATID == NULL) return E_OUTOFMEMORY;
276 /**********************************************************************
277 * COMCAT_ICatInformation_Vtbl
279 ICatInformationVtbl COMCAT_ICatInformation_Vtbl =
281 COMCAT_ICatInformation_QueryInterface,
282 COMCAT_ICatInformation_AddRef,
283 COMCAT_ICatInformation_Release,
284 COMCAT_ICatInformation_EnumCategories,
285 COMCAT_ICatInformation_GetCategoryDesc,
286 COMCAT_ICatInformation_EnumClassesOfCategories,
287 COMCAT_ICatInformation_IsClassOfCategories,
288 COMCAT_ICatInformation_EnumImplCategoriesOfClass,
289 COMCAT_ICatInformation_EnumReqCategoriesOfClass
292 /**********************************************************************
293 * IEnumCATEGORYINFO implementation
295 * This implementation is not thread-safe. The manager itself is, but
296 * I can't imagine a valid use of an enumerator in several threads.
300 IEnumCATEGORYINFOVtbl *lpVtbl;
305 } IEnumCATEGORYINFOImpl;
307 static ULONG WINAPI COMCAT_IEnumCATEGORYINFO_AddRef(LPENUMCATEGORYINFO iface)
309 IEnumCATEGORYINFOImpl *This = (IEnumCATEGORYINFOImpl *)iface;
312 if (This == NULL) return E_POINTER;
314 return ++(This->ref);
317 static HRESULT WINAPI COMCAT_IEnumCATEGORYINFO_QueryInterface(
318 LPENUMCATEGORYINFO iface,
322 IEnumCATEGORYINFOImpl *This = (IEnumCATEGORYINFOImpl *)iface;
323 TRACE("\n\tIID:\t%s\n",debugstr_guid(riid));
325 if (This == NULL || ppvObj == NULL) return E_POINTER;
327 if (IsEqualGUID(riid, &IID_IUnknown) ||
328 IsEqualGUID(riid, &IID_IEnumCATEGORYINFO))
330 *ppvObj = (LPVOID)iface;
331 COMCAT_IEnumCATEGORYINFO_AddRef(iface);
335 return E_NOINTERFACE;
338 static ULONG WINAPI COMCAT_IEnumCATEGORYINFO_Release(LPENUMCATEGORYINFO iface)
340 IEnumCATEGORYINFOImpl *This = (IEnumCATEGORYINFOImpl *)iface;
343 if (This == NULL) return E_POINTER;
345 if (--(This->ref) == 0) {
346 if (This->key) RegCloseKey(This->key);
347 HeapFree(GetProcessHeap(), 0, This);
353 static HRESULT WINAPI COMCAT_IEnumCATEGORYINFO_Next(
354 LPENUMCATEGORYINFO iface,
359 IEnumCATEGORYINFOImpl *This = (IEnumCATEGORYINFOImpl *)iface;
364 if (This == NULL || rgelt == NULL) return E_POINTER;
366 if (This->key) while (fetched < celt) {
372 res = RegEnumKeyExW(This->key, This->next_index, catid, &cName,
373 NULL, NULL, NULL, NULL);
374 if (res != ERROR_SUCCESS && res != ERROR_MORE_DATA) break;
375 ++(This->next_index);
377 res = CLSIDFromString(catid, &rgelt->catid);
378 if (FAILED(res)) continue;
380 res = RegOpenKeyExW(This->key, catid, 0, KEY_READ, &subkey);
381 if (res != ERROR_SUCCESS) continue;
383 res = COMCAT_GetCategoryDesc(subkey, This->lcid,
384 rgelt->szDescription, 128);
386 if (FAILED(res)) continue;
388 rgelt->lcid = This->lcid;
393 if (pceltFetched) *pceltFetched = fetched;
394 return fetched == celt ? S_OK : S_FALSE;
397 static HRESULT WINAPI COMCAT_IEnumCATEGORYINFO_Skip(
398 LPENUMCATEGORYINFO iface,
401 IEnumCATEGORYINFOImpl *This = (IEnumCATEGORYINFOImpl *)iface;
405 if (This == NULL) return E_POINTER;
406 This->next_index += celt;
407 /* This should return S_FALSE when there aren't celt elems to skip. */
411 static HRESULT WINAPI COMCAT_IEnumCATEGORYINFO_Reset(LPENUMCATEGORYINFO iface)
413 IEnumCATEGORYINFOImpl *This = (IEnumCATEGORYINFOImpl *)iface;
417 if (This == NULL) return E_POINTER;
418 This->next_index = 0;
422 static HRESULT WINAPI COMCAT_IEnumCATEGORYINFO_Clone(
423 LPENUMCATEGORYINFO iface,
424 IEnumCATEGORYINFO **ppenum)
426 IEnumCATEGORYINFOImpl *This = (IEnumCATEGORYINFOImpl *)iface;
427 WCHAR keyname[21] = { 'C', 'o', 'm', 'p', 'o', 'n', 'e', 'n',
428 't', ' ', 'C', 'a', 't', 'e', 'g', 'o',
429 'r', 'i', 'e', 's', 0 };
430 IEnumCATEGORYINFOImpl *new_this;
434 if (This == NULL || ppenum == NULL) return E_POINTER;
436 new_this = (IEnumCATEGORYINFOImpl *) HeapAlloc(
437 GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(IEnumCATEGORYINFOImpl));
438 if (new_this == NULL) return E_OUTOFMEMORY;
440 new_this->lpVtbl = This->lpVtbl;
442 new_this->lcid = This->lcid;
443 /* FIXME: could we more efficiently use DuplicateHandle? */
444 RegOpenKeyExW(HKEY_CLASSES_ROOT, keyname, 0, KEY_READ, &new_this->key);
445 new_this->next_index = This->next_index;
447 *ppenum = (LPENUMCATEGORYINFO)new_this;
451 IEnumCATEGORYINFOVtbl COMCAT_IEnumCATEGORYINFO_Vtbl =
453 COMCAT_IEnumCATEGORYINFO_QueryInterface,
454 COMCAT_IEnumCATEGORYINFO_AddRef,
455 COMCAT_IEnumCATEGORYINFO_Release,
456 COMCAT_IEnumCATEGORYINFO_Next,
457 COMCAT_IEnumCATEGORYINFO_Skip,
458 COMCAT_IEnumCATEGORYINFO_Reset,
459 COMCAT_IEnumCATEGORYINFO_Clone
462 static LPENUMCATEGORYINFO COMCAT_IEnumCATEGORYINFO_Construct(LCID lcid)
464 IEnumCATEGORYINFOImpl *This;
466 This = (IEnumCATEGORYINFOImpl *) HeapAlloc(
467 GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(IEnumCATEGORYINFOImpl));
469 WCHAR keyname[21] = { 'C', 'o', 'm', 'p', 'o', 'n', 'e', 'n',
470 't', ' ', 'C', 'a', 't', 'e', 'g', 'o',
471 'r', 'i', 'e', 's', 0 };
473 This->lpVtbl = &COMCAT_IEnumCATEGORYINFO_Vtbl;
475 RegOpenKeyExW(HKEY_CLASSES_ROOT, keyname, 0, KEY_READ, &This->key);
477 return (LPENUMCATEGORYINFO)This;
480 /**********************************************************************
481 * COMCAT_GetCategoryDesc
483 static HRESULT COMCAT_GetCategoryDesc(HKEY key, LCID lcid, PWCHAR pszDesc,
486 WCHAR fmt[4] = { '%', 'l', 'X', 0 };
489 DWORD type, size = (buf_wchars - 1) * sizeof(WCHAR);
491 if (pszDesc == NULL) return E_INVALIDARG;
493 /* FIXME: lcid comparisons are more complex than this! */
494 wsprintfW(valname, fmt, lcid);
495 res = RegQueryValueExW(key, valname, 0, &type, (LPBYTE)pszDesc, &size);
496 if (res != ERROR_SUCCESS || type != REG_SZ) {
497 FIXME("Simplified lcid comparison\n");
498 return CAT_E_NODESCRIPTION;
500 pszDesc[size / sizeof(WCHAR)] = (WCHAR)0;
505 /**********************************************************************
506 * COMCAT_PrepareClassCategories
508 static struct class_categories *COMCAT_PrepareClassCategories(
509 ULONG impl_count, CATID *impl_catids, ULONG req_count, CATID *req_catids)
511 struct class_categories *categories;
514 categories = (struct class_categories *)HeapAlloc(
515 GetProcessHeap(), HEAP_ZERO_MEMORY,
516 sizeof(struct class_categories) +
517 ((impl_count + req_count) * 39 + 2) * sizeof(WCHAR));
518 if (categories == NULL) return categories;
520 strings = (WCHAR *)(categories + 1);
521 categories->impl_strings = strings;
522 while (impl_count--) {
523 StringFromGUID2(impl_catids++, strings, 39);
528 categories->req_strings = strings;
529 while (req_count--) {
530 StringFromGUID2(req_catids++, strings, 39);
538 /**********************************************************************
539 * COMCAT_IsClassOfCategories
541 static HRESULT COMCAT_IsClassOfCategories(
543 struct class_categories const* categories)
545 WCHAR impl_keyname[23] = { 'I', 'm', 'p', 'l', 'e', 'm', 'e', 'n',
546 't', 'e', 'd', ' ', 'C', 'a', 't', 'e',
547 'g', 'o', 'r', 'i', 'e', 's', 0 };
548 WCHAR req_keyname[20] = { 'R', 'e', 'q', 'u', 'i', 'r', 'e', 'd',
549 ' ', 'C', 'a', 't', 'e', 'g', 'o', 'r',
556 /* Check that every given category is implemented by class. */
557 res = RegOpenKeyExW(key, impl_keyname, 0, KEY_READ, &subkey);
558 if (res != ERROR_SUCCESS) return S_FALSE;
559 for (string = categories->impl_strings; *string; string += 39) {
561 res = RegOpenKeyExW(subkey, string, 0, 0, &catkey);
562 if (res != ERROR_SUCCESS) {
570 /* Check that all categories required by class are given. */
571 res = RegOpenKeyExW(key, req_keyname, 0, KEY_READ, &subkey);
572 if (res == ERROR_SUCCESS) {
573 for (index = 0; ; ++index) {
577 res = RegEnumKeyExW(subkey, index, keyname, &size,
578 NULL, NULL, NULL, NULL);
579 if (res != ERROR_SUCCESS && res != ERROR_MORE_DATA) break;
580 if (size != 38) continue; /* bogus catid in registry */
581 for (string = categories->req_strings; *string; string += 39)
582 if (!strcmpiW(string, keyname)) break;
594 /**********************************************************************
595 * ClassesOfCategories IEnumCLSID (IEnumGUID) implementation
597 * This implementation is not thread-safe. The manager itself is, but
598 * I can't imagine a valid use of an enumerator in several threads.
602 IEnumGUIDVtbl *lpVtbl;
604 struct class_categories const *categories;
607 } CLSID_IEnumGUIDImpl;
609 static ULONG WINAPI COMCAT_CLSID_IEnumGUID_AddRef(LPENUMGUID iface)
611 CLSID_IEnumGUIDImpl *This = (CLSID_IEnumGUIDImpl *)iface;
614 if (This == NULL) return E_POINTER;
616 return ++(This->ref);
619 static HRESULT WINAPI COMCAT_CLSID_IEnumGUID_QueryInterface(
624 CLSID_IEnumGUIDImpl *This = (CLSID_IEnumGUIDImpl *)iface;
625 TRACE("\n\tIID:\t%s\n",debugstr_guid(riid));
627 if (This == NULL || ppvObj == NULL) return E_POINTER;
629 if (IsEqualGUID(riid, &IID_IUnknown) ||
630 IsEqualGUID(riid, &IID_IEnumGUID))
632 *ppvObj = (LPVOID)iface;
633 COMCAT_CLSID_IEnumGUID_AddRef(iface);
637 return E_NOINTERFACE;
640 static ULONG WINAPI COMCAT_CLSID_IEnumGUID_Release(LPENUMGUID iface)
642 CLSID_IEnumGUIDImpl *This = (CLSID_IEnumGUIDImpl *)iface;
645 if (This == NULL) return E_POINTER;
647 if (--(This->ref) == 0) {
648 if (This->key) RegCloseKey(This->key);
649 HeapFree(GetProcessHeap(), 0, (LPVOID)This->categories);
650 HeapFree(GetProcessHeap(), 0, This);
656 static HRESULT WINAPI COMCAT_CLSID_IEnumGUID_Next(
662 CLSID_IEnumGUIDImpl *This = (CLSID_IEnumGUIDImpl *)iface;
667 if (This == NULL || rgelt == NULL) return E_POINTER;
669 if (This->key) while (fetched < celt) {
675 res = RegEnumKeyExW(This->key, This->next_index, clsid, &cName,
676 NULL, NULL, NULL, NULL);
677 if (res != ERROR_SUCCESS && res != ERROR_MORE_DATA) break;
678 ++(This->next_index);
680 res = CLSIDFromString(clsid, rgelt);
681 if (FAILED(res)) continue;
683 res = RegOpenKeyExW(This->key, clsid, 0, KEY_READ, &subkey);
684 if (res != ERROR_SUCCESS) continue;
686 res = COMCAT_IsClassOfCategories(subkey, This->categories);
688 if (res != S_OK) continue;
694 if (pceltFetched) *pceltFetched = fetched;
695 return fetched == celt ? S_OK : S_FALSE;
698 static HRESULT WINAPI COMCAT_CLSID_IEnumGUID_Skip(
702 CLSID_IEnumGUIDImpl *This = (CLSID_IEnumGUIDImpl *)iface;
706 if (This == NULL) return E_POINTER;
707 This->next_index += celt;
708 FIXME("Never returns S_FALSE\n");
712 static HRESULT WINAPI COMCAT_CLSID_IEnumGUID_Reset(LPENUMGUID iface)
714 CLSID_IEnumGUIDImpl *This = (CLSID_IEnumGUIDImpl *)iface;
718 if (This == NULL) return E_POINTER;
719 This->next_index = 0;
723 static HRESULT WINAPI COMCAT_CLSID_IEnumGUID_Clone(
727 CLSID_IEnumGUIDImpl *This = (CLSID_IEnumGUIDImpl *)iface;
728 WCHAR keyname[6] = { 'C', 'L', 'S', 'I', 'D', 0 };
729 CLSID_IEnumGUIDImpl *new_this;
734 if (This == NULL || ppenum == NULL) return E_POINTER;
736 new_this = (CLSID_IEnumGUIDImpl *) HeapAlloc(
737 GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(CLSID_IEnumGUIDImpl));
738 if (new_this == NULL) return E_OUTOFMEMORY;
740 new_this->lpVtbl = This->lpVtbl;
742 size = HeapSize(GetProcessHeap(), 0, (LPVOID)This->categories);
743 new_this->categories = (struct class_categories *)
744 HeapAlloc(GetProcessHeap(), 0, size);
745 if (new_this->categories == NULL) {
746 HeapFree(GetProcessHeap(), 0, new_this);
747 return E_OUTOFMEMORY;
749 memcpy((LPVOID)new_this->categories, This->categories, size);
750 /* FIXME: could we more efficiently use DuplicateHandle? */
751 RegOpenKeyExW(HKEY_CLASSES_ROOT, keyname, 0, KEY_READ, &new_this->key);
752 new_this->next_index = This->next_index;
754 *ppenum = (LPENUMGUID)new_this;
758 IEnumGUIDVtbl COMCAT_CLSID_IEnumGUID_Vtbl =
760 COMCAT_CLSID_IEnumGUID_QueryInterface,
761 COMCAT_CLSID_IEnumGUID_AddRef,
762 COMCAT_CLSID_IEnumGUID_Release,
763 COMCAT_CLSID_IEnumGUID_Next,
764 COMCAT_CLSID_IEnumGUID_Skip,
765 COMCAT_CLSID_IEnumGUID_Reset,
766 COMCAT_CLSID_IEnumGUID_Clone
769 static LPENUMGUID COMCAT_CLSID_IEnumGUID_Construct(
770 struct class_categories const* categories)
772 CLSID_IEnumGUIDImpl *This;
774 This = (CLSID_IEnumGUIDImpl *) HeapAlloc(
775 GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(CLSID_IEnumGUIDImpl));
777 WCHAR keyname[6] = { 'C', 'L', 'S', 'I', 'D', 0 };
779 This->lpVtbl = &COMCAT_CLSID_IEnumGUID_Vtbl;
780 This->categories = categories;
781 RegOpenKeyExW(HKEY_CLASSES_ROOT, keyname, 0, KEY_READ, &This->key);
783 return (LPENUMGUID)This;
786 /**********************************************************************
787 * CategoriesOfClass IEnumCATID (IEnumGUID) implementation
789 * This implementation is not thread-safe. The manager itself is, but
790 * I can't imagine a valid use of an enumerator in several threads.
794 IEnumGUIDVtbl *lpVtbl;
799 } CATID_IEnumGUIDImpl;
801 static ULONG WINAPI COMCAT_CATID_IEnumGUID_AddRef(LPENUMGUID iface)
803 CATID_IEnumGUIDImpl *This = (CATID_IEnumGUIDImpl *)iface;
806 if (This == NULL) return E_POINTER;
808 return ++(This->ref);
811 static HRESULT WINAPI COMCAT_CATID_IEnumGUID_QueryInterface(
816 CATID_IEnumGUIDImpl *This = (CATID_IEnumGUIDImpl *)iface;
817 TRACE("\n\tIID:\t%s\n",debugstr_guid(riid));
819 if (This == NULL || ppvObj == NULL) return E_POINTER;
821 if (IsEqualGUID(riid, &IID_IUnknown) ||
822 IsEqualGUID(riid, &IID_IEnumGUID))
824 *ppvObj = (LPVOID)iface;
825 COMCAT_CATID_IEnumGUID_AddRef(iface);
829 return E_NOINTERFACE;
832 static ULONG WINAPI COMCAT_CATID_IEnumGUID_Release(LPENUMGUID iface)
834 CATID_IEnumGUIDImpl *This = (CATID_IEnumGUIDImpl *)iface;
837 if (This == NULL) return E_POINTER;
839 if (--(This->ref) == 0) {
840 if (This->key) RegCloseKey(This->key);
841 HeapFree(GetProcessHeap(), 0, This);
847 static HRESULT WINAPI COMCAT_CATID_IEnumGUID_Next(
853 CATID_IEnumGUIDImpl *This = (CATID_IEnumGUIDImpl *)iface;
858 if (This == NULL || rgelt == NULL) return E_POINTER;
860 if (This->key) while (fetched < celt) {
865 res = RegEnumKeyExW(This->key, This->next_index, catid, &cName,
866 NULL, NULL, NULL, NULL);
867 if (res != ERROR_SUCCESS && res != ERROR_MORE_DATA) break;
868 ++(This->next_index);
870 res = CLSIDFromString(catid, rgelt);
871 if (FAILED(res)) continue;
877 if (pceltFetched) *pceltFetched = fetched;
878 return fetched == celt ? S_OK : S_FALSE;
881 static HRESULT WINAPI COMCAT_CATID_IEnumGUID_Skip(
885 CATID_IEnumGUIDImpl *This = (CATID_IEnumGUIDImpl *)iface;
889 if (This == NULL) return E_POINTER;
890 This->next_index += celt;
891 FIXME("Never returns S_FALSE\n");
895 static HRESULT WINAPI COMCAT_CATID_IEnumGUID_Reset(LPENUMGUID iface)
897 CATID_IEnumGUIDImpl *This = (CATID_IEnumGUIDImpl *)iface;
901 if (This == NULL) return E_POINTER;
902 This->next_index = 0;
906 static HRESULT WINAPI COMCAT_CATID_IEnumGUID_Clone(
910 CATID_IEnumGUIDImpl *This = (CATID_IEnumGUIDImpl *)iface;
911 CATID_IEnumGUIDImpl *new_this;
915 if (This == NULL || ppenum == NULL) return E_POINTER;
917 new_this = (CATID_IEnumGUIDImpl *) HeapAlloc(
918 GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(CATID_IEnumGUIDImpl));
919 if (new_this == NULL) return E_OUTOFMEMORY;
921 new_this->lpVtbl = This->lpVtbl;
923 lstrcpyW(new_this->keyname, This->keyname);
924 /* FIXME: could we more efficiently use DuplicateHandle? */
925 RegOpenKeyExW(HKEY_CLASSES_ROOT, new_this->keyname, 0, KEY_READ, &new_this->key);
926 new_this->next_index = This->next_index;
928 *ppenum = (LPENUMGUID)new_this;
932 IEnumGUIDVtbl COMCAT_CATID_IEnumGUID_Vtbl =
934 COMCAT_CATID_IEnumGUID_QueryInterface,
935 COMCAT_CATID_IEnumGUID_AddRef,
936 COMCAT_CATID_IEnumGUID_Release,
937 COMCAT_CATID_IEnumGUID_Next,
938 COMCAT_CATID_IEnumGUID_Skip,
939 COMCAT_CATID_IEnumGUID_Reset,
940 COMCAT_CATID_IEnumGUID_Clone
943 static LPENUMGUID COMCAT_CATID_IEnumGUID_Construct(
944 REFCLSID rclsid, LPCWSTR postfix)
946 CATID_IEnumGUIDImpl *This;
948 This = (CATID_IEnumGUIDImpl *) HeapAlloc(
949 GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(CATID_IEnumGUIDImpl));
951 WCHAR prefix[6] = { 'C', 'L', 'S', 'I', 'D', '\\' };
953 This->lpVtbl = &COMCAT_CATID_IEnumGUID_Vtbl;
954 memcpy(This->keyname, prefix, sizeof(prefix));
955 StringFromGUID2(rclsid, This->keyname + 6, 39);
956 lstrcpyW(This->keyname + 44, postfix);
957 RegOpenKeyExW(HKEY_CLASSES_ROOT, This->keyname, 0, KEY_READ, &This->key);
959 return (LPENUMGUID)This;