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 ICOM_VTABLE(ICatInformation) COMCAT_ICatInformation_Vtbl =
281 ICOM_MSVTABLE_COMPAT_DummyRTTIVALUE
282 COMCAT_ICatInformation_QueryInterface,
283 COMCAT_ICatInformation_AddRef,
284 COMCAT_ICatInformation_Release,
285 COMCAT_ICatInformation_EnumCategories,
286 COMCAT_ICatInformation_GetCategoryDesc,
287 COMCAT_ICatInformation_EnumClassesOfCategories,
288 COMCAT_ICatInformation_IsClassOfCategories,
289 COMCAT_ICatInformation_EnumImplCategoriesOfClass,
290 COMCAT_ICatInformation_EnumReqCategoriesOfClass
293 /**********************************************************************
294 * IEnumCATEGORYINFO implementation
296 * This implementation is not thread-safe. The manager itself is, but
297 * I can't imagine a valid use of an enumerator in several threads.
301 ICOM_VFIELD(IEnumCATEGORYINFO);
306 } IEnumCATEGORYINFOImpl;
308 static ULONG WINAPI COMCAT_IEnumCATEGORYINFO_AddRef(LPENUMCATEGORYINFO iface)
310 ICOM_THIS(IEnumCATEGORYINFOImpl, iface);
313 if (This == NULL) return E_POINTER;
315 return ++(This->ref);
318 static HRESULT WINAPI COMCAT_IEnumCATEGORYINFO_QueryInterface(
319 LPENUMCATEGORYINFO iface,
323 ICOM_THIS(IEnumCATEGORYINFOImpl, iface);
324 TRACE("\n\tIID:\t%s\n",debugstr_guid(riid));
326 if (This == NULL || ppvObj == NULL) return E_POINTER;
328 if (IsEqualGUID(riid, &IID_IUnknown) ||
329 IsEqualGUID(riid, &IID_IEnumCATEGORYINFO))
331 *ppvObj = (LPVOID)iface;
332 COMCAT_IEnumCATEGORYINFO_AddRef(iface);
336 return E_NOINTERFACE;
339 static ULONG WINAPI COMCAT_IEnumCATEGORYINFO_Release(LPENUMCATEGORYINFO iface)
341 ICOM_THIS(IEnumCATEGORYINFOImpl, iface);
344 if (This == NULL) return E_POINTER;
346 if (--(This->ref) == 0) {
347 if (This->key) RegCloseKey(This->key);
348 HeapFree(GetProcessHeap(), 0, This);
354 static HRESULT WINAPI COMCAT_IEnumCATEGORYINFO_Next(
355 LPENUMCATEGORYINFO iface,
360 ICOM_THIS(IEnumCATEGORYINFOImpl, iface);
365 if (This == NULL || rgelt == NULL) return E_POINTER;
367 if (This->key) while (fetched < celt) {
373 res = RegEnumKeyExW(This->key, This->next_index, catid, &cName,
374 NULL, NULL, NULL, NULL);
375 if (res != ERROR_SUCCESS && res != ERROR_MORE_DATA) break;
376 ++(This->next_index);
378 res = CLSIDFromString(catid, &rgelt->catid);
379 if (FAILED(res)) continue;
381 res = RegOpenKeyExW(This->key, catid, 0, KEY_READ, &subkey);
382 if (res != ERROR_SUCCESS) continue;
384 res = COMCAT_GetCategoryDesc(subkey, This->lcid,
385 rgelt->szDescription, 128);
387 if (FAILED(res)) continue;
389 rgelt->lcid = This->lcid;
394 if (pceltFetched) *pceltFetched = fetched;
395 return fetched == celt ? S_OK : S_FALSE;
398 static HRESULT WINAPI COMCAT_IEnumCATEGORYINFO_Skip(
399 LPENUMCATEGORYINFO iface,
402 ICOM_THIS(IEnumCATEGORYINFOImpl, iface);
406 if (This == NULL) return E_POINTER;
407 This->next_index += celt;
408 /* This should return S_FALSE when there aren't celt elems to skip. */
412 static HRESULT WINAPI COMCAT_IEnumCATEGORYINFO_Reset(LPENUMCATEGORYINFO iface)
414 ICOM_THIS(IEnumCATEGORYINFOImpl, iface);
418 if (This == NULL) return E_POINTER;
419 This->next_index = 0;
423 static HRESULT WINAPI COMCAT_IEnumCATEGORYINFO_Clone(
424 LPENUMCATEGORYINFO iface,
425 IEnumCATEGORYINFO **ppenum)
427 ICOM_THIS(IEnumCATEGORYINFOImpl, iface);
428 WCHAR keyname[21] = { 'C', 'o', 'm', 'p', 'o', 'n', 'e', 'n',
429 't', ' ', 'C', 'a', 't', 'e', 'g', 'o',
430 'r', 'i', 'e', 's', 0 };
431 IEnumCATEGORYINFOImpl *new_this;
435 if (This == NULL || ppenum == NULL) return E_POINTER;
437 new_this = (IEnumCATEGORYINFOImpl *) HeapAlloc(
438 GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(IEnumCATEGORYINFOImpl));
439 if (new_this == NULL) return E_OUTOFMEMORY;
441 new_this->lpVtbl = This->lpVtbl;
443 new_this->lcid = This->lcid;
444 /* FIXME: could we more efficiently use DuplicateHandle? */
445 RegOpenKeyExW(HKEY_CLASSES_ROOT, keyname, 0, KEY_READ, &new_this->key);
446 new_this->next_index = This->next_index;
448 *ppenum = (LPENUMCATEGORYINFO)new_this;
452 ICOM_VTABLE(IEnumCATEGORYINFO) COMCAT_IEnumCATEGORYINFO_Vtbl =
454 ICOM_MSVTABLE_COMPAT_DummyRTTIVALUE
455 COMCAT_IEnumCATEGORYINFO_QueryInterface,
456 COMCAT_IEnumCATEGORYINFO_AddRef,
457 COMCAT_IEnumCATEGORYINFO_Release,
458 COMCAT_IEnumCATEGORYINFO_Next,
459 COMCAT_IEnumCATEGORYINFO_Skip,
460 COMCAT_IEnumCATEGORYINFO_Reset,
461 COMCAT_IEnumCATEGORYINFO_Clone
464 static LPENUMCATEGORYINFO COMCAT_IEnumCATEGORYINFO_Construct(LCID lcid)
466 IEnumCATEGORYINFOImpl *This;
468 This = (IEnumCATEGORYINFOImpl *) HeapAlloc(
469 GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(IEnumCATEGORYINFOImpl));
471 WCHAR keyname[21] = { 'C', 'o', 'm', 'p', 'o', 'n', 'e', 'n',
472 't', ' ', 'C', 'a', 't', 'e', 'g', 'o',
473 'r', 'i', 'e', 's', 0 };
475 This->lpVtbl = &COMCAT_IEnumCATEGORYINFO_Vtbl;
477 RegOpenKeyExW(HKEY_CLASSES_ROOT, keyname, 0, KEY_READ, &This->key);
479 return (LPENUMCATEGORYINFO)This;
482 /**********************************************************************
483 * COMCAT_GetCategoryDesc
485 static HRESULT COMCAT_GetCategoryDesc(HKEY key, LCID lcid, PWCHAR pszDesc,
488 WCHAR fmt[4] = { '%', 'l', 'X', 0 };
491 DWORD type, size = (buf_wchars - 1) * sizeof(WCHAR);
493 if (pszDesc == NULL) return E_INVALIDARG;
495 /* FIXME: lcid comparisons are more complex than this! */
496 wsprintfW(valname, fmt, lcid);
497 res = RegQueryValueExW(key, valname, 0, &type, (LPBYTE)pszDesc, &size);
498 if (res != ERROR_SUCCESS || type != REG_SZ) {
499 FIXME("Simplified lcid comparison\n");
500 return CAT_E_NODESCRIPTION;
502 pszDesc[size / sizeof(WCHAR)] = (WCHAR)0;
507 /**********************************************************************
508 * COMCAT_PrepareClassCategories
510 static struct class_categories *COMCAT_PrepareClassCategories(
511 ULONG impl_count, CATID *impl_catids, ULONG req_count, CATID *req_catids)
513 struct class_categories *categories;
516 categories = (struct class_categories *)HeapAlloc(
517 GetProcessHeap(), HEAP_ZERO_MEMORY,
518 sizeof(struct class_categories) +
519 ((impl_count + req_count) * 39 + 2) * sizeof(WCHAR));
520 if (categories == NULL) return categories;
522 strings = (WCHAR *)(categories + 1);
523 categories->impl_strings = strings;
524 while (impl_count--) {
525 StringFromGUID2(impl_catids++, strings, 39);
530 categories->req_strings = strings;
531 while (req_count--) {
532 StringFromGUID2(req_catids++, strings, 39);
540 /**********************************************************************
541 * COMCAT_IsClassOfCategories
543 static HRESULT COMCAT_IsClassOfCategories(
545 struct class_categories const* categories)
547 WCHAR impl_keyname[23] = { 'I', 'm', 'p', 'l', 'e', 'm', 'e', 'n',
548 't', 'e', 'd', ' ', 'C', 'a', 't', 'e',
549 'g', 'o', 'r', 'i', 'e', 's', 0 };
550 WCHAR req_keyname[20] = { 'R', 'e', 'q', 'u', 'i', 'r', 'e', 'd',
551 ' ', 'C', 'a', 't', 'e', 'g', 'o', 'r',
558 /* Check that every given category is implemented by class. */
559 res = RegOpenKeyExW(key, impl_keyname, 0, KEY_READ, &subkey);
560 if (res != ERROR_SUCCESS) return S_FALSE;
561 for (string = categories->impl_strings; *string; string += 39) {
563 res = RegOpenKeyExW(subkey, string, 0, 0, &catkey);
564 if (res != ERROR_SUCCESS) {
572 /* Check that all categories required by class are given. */
573 res = RegOpenKeyExW(key, req_keyname, 0, KEY_READ, &subkey);
574 if (res == ERROR_SUCCESS) {
575 for (index = 0; ; ++index) {
579 res = RegEnumKeyExW(subkey, index, keyname, &size,
580 NULL, NULL, NULL, NULL);
581 if (res != ERROR_SUCCESS && res != ERROR_MORE_DATA) break;
582 if (size != 38) continue; /* bogus catid in registry */
583 for (string = categories->req_strings; *string; string += 39)
584 if (!strcmpiW(string, keyname)) break;
596 /**********************************************************************
597 * ClassesOfCategories IEnumCLSID (IEnumGUID) implementation
599 * This implementation is not thread-safe. The manager itself is, but
600 * I can't imagine a valid use of an enumerator in several threads.
604 ICOM_VFIELD(IEnumGUID);
606 struct class_categories const *categories;
609 } CLSID_IEnumGUIDImpl;
611 static ULONG WINAPI COMCAT_CLSID_IEnumGUID_AddRef(LPENUMGUID iface)
613 ICOM_THIS(CLSID_IEnumGUIDImpl, iface);
616 if (This == NULL) return E_POINTER;
618 return ++(This->ref);
621 static HRESULT WINAPI COMCAT_CLSID_IEnumGUID_QueryInterface(
626 ICOM_THIS(CLSID_IEnumGUIDImpl, iface);
627 TRACE("\n\tIID:\t%s\n",debugstr_guid(riid));
629 if (This == NULL || ppvObj == NULL) return E_POINTER;
631 if (IsEqualGUID(riid, &IID_IUnknown) ||
632 IsEqualGUID(riid, &IID_IEnumGUID))
634 *ppvObj = (LPVOID)iface;
635 COMCAT_CLSID_IEnumGUID_AddRef(iface);
639 return E_NOINTERFACE;
642 static ULONG WINAPI COMCAT_CLSID_IEnumGUID_Release(LPENUMGUID iface)
644 ICOM_THIS(CLSID_IEnumGUIDImpl, iface);
647 if (This == NULL) return E_POINTER;
649 if (--(This->ref) == 0) {
650 if (This->key) RegCloseKey(This->key);
651 HeapFree(GetProcessHeap(), 0, (LPVOID)This->categories);
652 HeapFree(GetProcessHeap(), 0, This);
658 static HRESULT WINAPI COMCAT_CLSID_IEnumGUID_Next(
664 ICOM_THIS(CLSID_IEnumGUIDImpl, iface);
669 if (This == NULL || rgelt == NULL) return E_POINTER;
671 if (This->key) while (fetched < celt) {
677 res = RegEnumKeyExW(This->key, This->next_index, clsid, &cName,
678 NULL, NULL, NULL, NULL);
679 if (res != ERROR_SUCCESS && res != ERROR_MORE_DATA) break;
680 ++(This->next_index);
682 res = CLSIDFromString(clsid, rgelt);
683 if (FAILED(res)) continue;
685 res = RegOpenKeyExW(This->key, clsid, 0, KEY_READ, &subkey);
686 if (res != ERROR_SUCCESS) continue;
688 res = COMCAT_IsClassOfCategories(subkey, This->categories);
690 if (res != S_OK) continue;
696 if (pceltFetched) *pceltFetched = fetched;
697 return fetched == celt ? S_OK : S_FALSE;
700 static HRESULT WINAPI COMCAT_CLSID_IEnumGUID_Skip(
704 ICOM_THIS(CLSID_IEnumGUIDImpl, iface);
708 if (This == NULL) return E_POINTER;
709 This->next_index += celt;
710 FIXME("Never returns S_FALSE\n");
714 static HRESULT WINAPI COMCAT_CLSID_IEnumGUID_Reset(LPENUMGUID iface)
716 ICOM_THIS(CLSID_IEnumGUIDImpl, iface);
720 if (This == NULL) return E_POINTER;
721 This->next_index = 0;
725 static HRESULT WINAPI COMCAT_CLSID_IEnumGUID_Clone(
729 ICOM_THIS(CLSID_IEnumGUIDImpl, iface);
730 WCHAR keyname[6] = { 'C', 'L', 'S', 'I', 'D', 0 };
731 CLSID_IEnumGUIDImpl *new_this;
736 if (This == NULL || ppenum == NULL) return E_POINTER;
738 new_this = (CLSID_IEnumGUIDImpl *) HeapAlloc(
739 GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(CLSID_IEnumGUIDImpl));
740 if (new_this == NULL) return E_OUTOFMEMORY;
742 new_this->lpVtbl = This->lpVtbl;
744 size = HeapSize(GetProcessHeap(), 0, (LPVOID)This->categories);
745 new_this->categories = (struct class_categories *)
746 HeapAlloc(GetProcessHeap(), 0, size);
747 if (new_this->categories == NULL) {
748 HeapFree(GetProcessHeap(), 0, new_this);
749 return E_OUTOFMEMORY;
751 memcpy((LPVOID)new_this->categories, This->categories, size);
752 /* FIXME: could we more efficiently use DuplicateHandle? */
753 RegOpenKeyExW(HKEY_CLASSES_ROOT, keyname, 0, KEY_READ, &new_this->key);
754 new_this->next_index = This->next_index;
756 *ppenum = (LPENUMGUID)new_this;
760 ICOM_VTABLE(IEnumGUID) COMCAT_CLSID_IEnumGUID_Vtbl =
762 ICOM_MSVTABLE_COMPAT_DummyRTTIVALUE
763 COMCAT_CLSID_IEnumGUID_QueryInterface,
764 COMCAT_CLSID_IEnumGUID_AddRef,
765 COMCAT_CLSID_IEnumGUID_Release,
766 COMCAT_CLSID_IEnumGUID_Next,
767 COMCAT_CLSID_IEnumGUID_Skip,
768 COMCAT_CLSID_IEnumGUID_Reset,
769 COMCAT_CLSID_IEnumGUID_Clone
772 static LPENUMGUID COMCAT_CLSID_IEnumGUID_Construct(
773 struct class_categories const* categories)
775 CLSID_IEnumGUIDImpl *This;
777 This = (CLSID_IEnumGUIDImpl *) HeapAlloc(
778 GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(CLSID_IEnumGUIDImpl));
780 WCHAR keyname[6] = { 'C', 'L', 'S', 'I', 'D', 0 };
782 This->lpVtbl = &COMCAT_CLSID_IEnumGUID_Vtbl;
783 This->categories = categories;
784 RegOpenKeyExW(HKEY_CLASSES_ROOT, keyname, 0, KEY_READ, &This->key);
786 return (LPENUMGUID)This;
789 /**********************************************************************
790 * CategoriesOfClass IEnumCATID (IEnumGUID) implementation
792 * This implementation is not thread-safe. The manager itself is, but
793 * I can't imagine a valid use of an enumerator in several threads.
797 ICOM_VFIELD(IEnumGUID);
802 } CATID_IEnumGUIDImpl;
804 static ULONG WINAPI COMCAT_CATID_IEnumGUID_AddRef(LPENUMGUID iface)
806 ICOM_THIS(CATID_IEnumGUIDImpl, iface);
809 if (This == NULL) return E_POINTER;
811 return ++(This->ref);
814 static HRESULT WINAPI COMCAT_CATID_IEnumGUID_QueryInterface(
819 ICOM_THIS(CATID_IEnumGUIDImpl, iface);
820 TRACE("\n\tIID:\t%s\n",debugstr_guid(riid));
822 if (This == NULL || ppvObj == NULL) return E_POINTER;
824 if (IsEqualGUID(riid, &IID_IUnknown) ||
825 IsEqualGUID(riid, &IID_IEnumGUID))
827 *ppvObj = (LPVOID)iface;
828 COMCAT_CATID_IEnumGUID_AddRef(iface);
832 return E_NOINTERFACE;
835 static ULONG WINAPI COMCAT_CATID_IEnumGUID_Release(LPENUMGUID iface)
837 ICOM_THIS(CATID_IEnumGUIDImpl, iface);
840 if (This == NULL) return E_POINTER;
842 if (--(This->ref) == 0) {
843 if (This->key) RegCloseKey(This->key);
844 HeapFree(GetProcessHeap(), 0, This);
850 static HRESULT WINAPI COMCAT_CATID_IEnumGUID_Next(
856 ICOM_THIS(CATID_IEnumGUIDImpl, iface);
861 if (This == NULL || rgelt == NULL) return E_POINTER;
863 if (This->key) while (fetched < celt) {
868 res = RegEnumKeyExW(This->key, This->next_index, catid, &cName,
869 NULL, NULL, NULL, NULL);
870 if (res != ERROR_SUCCESS && res != ERROR_MORE_DATA) break;
871 ++(This->next_index);
873 res = CLSIDFromString(catid, rgelt);
874 if (FAILED(res)) continue;
880 if (pceltFetched) *pceltFetched = fetched;
881 return fetched == celt ? S_OK : S_FALSE;
884 static HRESULT WINAPI COMCAT_CATID_IEnumGUID_Skip(
888 ICOM_THIS(CATID_IEnumGUIDImpl, iface);
892 if (This == NULL) return E_POINTER;
893 This->next_index += celt;
894 FIXME("Never returns S_FALSE\n");
898 static HRESULT WINAPI COMCAT_CATID_IEnumGUID_Reset(LPENUMGUID iface)
900 ICOM_THIS(CATID_IEnumGUIDImpl, iface);
904 if (This == NULL) return E_POINTER;
905 This->next_index = 0;
909 static HRESULT WINAPI COMCAT_CATID_IEnumGUID_Clone(
913 ICOM_THIS(CATID_IEnumGUIDImpl, iface);
914 CATID_IEnumGUIDImpl *new_this;
918 if (This == NULL || ppenum == NULL) return E_POINTER;
920 new_this = (CATID_IEnumGUIDImpl *) HeapAlloc(
921 GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(CATID_IEnumGUIDImpl));
922 if (new_this == NULL) return E_OUTOFMEMORY;
924 new_this->lpVtbl = This->lpVtbl;
926 lstrcpyW(new_this->keyname, This->keyname);
927 /* FIXME: could we more efficiently use DuplicateHandle? */
928 RegOpenKeyExW(HKEY_CLASSES_ROOT, new_this->keyname, 0, KEY_READ, &new_this->key);
929 new_this->next_index = This->next_index;
931 *ppenum = (LPENUMGUID)new_this;
935 ICOM_VTABLE(IEnumGUID) COMCAT_CATID_IEnumGUID_Vtbl =
937 ICOM_MSVTABLE_COMPAT_DummyRTTIVALUE
938 COMCAT_CATID_IEnumGUID_QueryInterface,
939 COMCAT_CATID_IEnumGUID_AddRef,
940 COMCAT_CATID_IEnumGUID_Release,
941 COMCAT_CATID_IEnumGUID_Next,
942 COMCAT_CATID_IEnumGUID_Skip,
943 COMCAT_CATID_IEnumGUID_Reset,
944 COMCAT_CATID_IEnumGUID_Clone
947 static LPENUMGUID COMCAT_CATID_IEnumGUID_Construct(
948 REFCLSID rclsid, LPCWSTR postfix)
950 CATID_IEnumGUIDImpl *This;
952 This = (CATID_IEnumGUIDImpl *) HeapAlloc(
953 GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(CATID_IEnumGUIDImpl));
955 WCHAR prefix[6] = { 'C', 'L', 'S', 'I', 'D', '\\' };
957 This->lpVtbl = &COMCAT_CATID_IEnumGUID_Vtbl;
958 memcpy(This->keyname, prefix, sizeof prefix);
959 StringFromGUID2(rclsid, This->keyname + 6, 39);
960 lstrcpyW(This->keyname + 44, postfix);
961 RegOpenKeyExW(HKEY_CLASSES_ROOT, This->keyname, 0, KEY_READ, &This->key);
963 return (LPENUMGUID)This;