winecoreaudio: Implement widOpen and widClose.
[wine/multimedia.git] / dlls / oleaut32 / oleaut.c
blobd6a08a92ff981ea0d2fd5ef8673ea81b0a3b6b00
1 /*
2 * OLEAUT32
4 * Copyright 1999, 2000 Marcus Meissner
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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
21 #include <stdarg.h>
22 #include <string.h>
23 #include <limits.h>
25 #define COBJMACROS
27 #include "windef.h"
28 #include "winbase.h"
29 #include "wingdi.h"
30 #include "winuser.h"
31 #include "winerror.h"
33 #include "ole2.h"
34 #include "olectl.h"
35 #include "oleauto.h"
36 #include "typelib.h"
38 #include "wine/debug.h"
40 WINE_DEFAULT_DEBUG_CHANNEL(ole);
42 static BOOL BSTR_bCache = TRUE; /* Cache allocations to minimise alloc calls? */
44 HMODULE OLEAUT32_hModule = NULL;
46 /******************************************************************************
47 * BSTR {OLEAUT32}
49 * NOTES
50 * BSTR is a simple typedef for a wide-character string used as the principle
51 * string type in ole automation. When encapsulated in a Variant type they are
52 * automatically copied and destroyed as the variant is processed.
54 * The low level BSTR Api allows manipulation of these strings and is used by
55 * higher level Api calls to manage the strings transparently to the caller.
57 * Internally the BSTR type is allocated with space for a DWORD byte count before
58 * the string data begins. This is undocumented and non-system code should not
59 * access the count directly. Use SysStringLen() or SysStringByteLen()
60 * instead. Note that the byte count does not include the terminating NUL.
62 * To create a new BSTR, use SysAllocString(), SysAllocStringLen() or
63 * SysAllocStringByteLen(). To change the size of an existing BSTR, use SysReAllocString()
64 * or SysReAllocStringLen(). Finally to destroy a string use SysFreeString().
66 * BSTR's are cached by Ole Automation by default. To override this behaviour
67 * either set the environment variable 'OANOCACHE', or call SetOaNoCache().
69 * SEE ALSO
70 * 'Inside OLE, second edition' by Kraig Brockshmidt.
73 /******************************************************************************
74 * SysStringLen [OLEAUT32.7]
76 * Get the allocated length of a BSTR in wide characters.
78 * PARAMS
79 * str [I] BSTR to find the length of
81 * RETURNS
82 * The allocated length of str, or 0 if str is NULL.
84 * NOTES
85 * See BSTR.
86 * The returned length may be different from the length of the string as
87 * calculated by lstrlenW(), since it returns the length that was used to
88 * allocate the string by SysAllocStringLen().
90 UINT WINAPI SysStringLen(BSTR str)
92 DWORD* bufferPointer;
94 if (!str) return 0;
96 * The length of the string (in bytes) is contained in a DWORD placed
97 * just before the BSTR pointer
99 bufferPointer = (DWORD*)str;
101 bufferPointer--;
103 return (int)(*bufferPointer/sizeof(WCHAR));
106 /******************************************************************************
107 * SysStringByteLen [OLEAUT32.149]
109 * Get the allocated length of a BSTR in bytes.
111 * PARAMS
112 * str [I] BSTR to find the length of
114 * RETURNS
115 * The allocated length of str, or 0 if str is NULL.
117 * NOTES
118 * See SysStringLen(), BSTR().
120 UINT WINAPI SysStringByteLen(BSTR str)
122 DWORD* bufferPointer;
124 if (!str) return 0;
126 * The length of the string (in bytes) is contained in a DWORD placed
127 * just before the BSTR pointer
129 bufferPointer = (DWORD*)str;
131 bufferPointer--;
133 return (int)(*bufferPointer);
136 /******************************************************************************
137 * SysAllocString [OLEAUT32.2]
139 * Create a BSTR from an OLESTR.
141 * PARAMS
142 * str [I] Source to create BSTR from
144 * RETURNS
145 * Success: A BSTR allocated with SysAllocStringLen().
146 * Failure: NULL, if oleStr is NULL.
148 * NOTES
149 * See BSTR.
150 * MSDN (October 2001) incorrectly states that NULL is returned if oleStr has
151 * a length of 0. Native Win32 and this implementation both return a valid
152 * empty BSTR in this case.
154 BSTR WINAPI SysAllocString(LPCOLESTR str)
156 if (!str) return 0;
158 /* Delegate this to the SysAllocStringLen32 method. */
159 return SysAllocStringLen(str, lstrlenW(str));
162 /******************************************************************************
163 * SysFreeString [OLEAUT32.6]
165 * Free a BSTR.
167 * PARAMS
168 * str [I] BSTR to free.
170 * RETURNS
171 * Nothing.
173 * NOTES
174 * See BSTR.
175 * str may be NULL, in which case this function does nothing.
177 void WINAPI SysFreeString(BSTR str)
179 DWORD* bufferPointer;
181 /* NULL is a valid parameter */
182 if(!str) return;
185 * We have to be careful when we free a BSTR pointer, it points to
186 * the beginning of the string but it skips the byte count contained
187 * before the string.
189 bufferPointer = (DWORD*)str;
191 bufferPointer--;
194 * Free the memory from its "real" origin.
196 HeapFree(GetProcessHeap(), 0, bufferPointer);
199 /******************************************************************************
200 * SysAllocStringLen [OLEAUT32.4]
202 * Create a BSTR from an OLESTR of a given wide character length.
204 * PARAMS
205 * str [I] Source to create BSTR from
206 * len [I] Length of oleStr in wide characters
208 * RETURNS
209 * Success: A newly allocated BSTR from SysAllocStringByteLen()
210 * Failure: NULL, if len is >= 0x80000000, or memory allocation fails.
212 * NOTES
213 * See BSTR(), SysAllocStringByteLen().
215 BSTR WINAPI SysAllocStringLen(const OLECHAR *str, unsigned int len)
217 DWORD bufferSize;
218 DWORD* newBuffer;
219 WCHAR* stringBuffer;
221 /* Detect integer overflow. */
222 if (len >= ((UINT_MAX-sizeof(WCHAR)-sizeof(DWORD))/sizeof(WCHAR)))
223 return NULL;
225 * Find the length of the buffer passed-in, in bytes.
227 bufferSize = len * sizeof (WCHAR);
230 * Allocate a new buffer to hold the string.
231 * don't forget to keep an empty spot at the beginning of the
232 * buffer for the character count and an extra character at the
233 * end for the NULL.
235 newBuffer = HeapAlloc(GetProcessHeap(), 0,
236 bufferSize + sizeof(WCHAR) + sizeof(DWORD));
239 * If the memory allocation failed, return a null pointer.
241 if (!newBuffer)
242 return NULL;
245 * Copy the length of the string in the placeholder.
247 *newBuffer = bufferSize;
250 * Skip the byte count.
252 newBuffer++;
255 * Copy the information in the buffer.
256 * Since it is valid to pass a NULL pointer here, we'll initialize the
257 * buffer to nul if it is the case.
259 if (str != 0)
260 memcpy(newBuffer, str, bufferSize);
261 else
262 memset(newBuffer, 0, bufferSize);
265 * Make sure that there is a nul character at the end of the
266 * string.
268 stringBuffer = (WCHAR*)newBuffer;
269 stringBuffer[len] = L'\0';
271 return (LPWSTR)stringBuffer;
274 /******************************************************************************
275 * SysReAllocStringLen [OLEAUT32.5]
277 * Change the length of a previously created BSTR.
279 * PARAMS
280 * old [O] BSTR to change the length of
281 * str [I] New source for pbstr
282 * len [I] Length of oleStr in wide characters
284 * RETURNS
285 * Success: 1. The size of pbstr is updated.
286 * Failure: 0, if len >= 0x80000000 or memory allocation fails.
288 * NOTES
289 * See BSTR(), SysAllocStringByteLen().
290 * *pbstr may be changed by this function.
292 int WINAPI SysReAllocStringLen(BSTR* old, const OLECHAR* str, unsigned int len)
294 if (*old!=NULL) {
295 DWORD newbytelen = len*sizeof(WCHAR);
296 DWORD *ptr = HeapReAlloc(GetProcessHeap(),0,((DWORD*)*old)-1,newbytelen+sizeof(WCHAR)+sizeof(DWORD));
297 *old = (BSTR)(ptr+1);
298 *ptr = newbytelen;
299 if (str) {
300 memcpy(*old, str, newbytelen);
301 (*old)[len] = 0;
302 } else {
303 /* Subtle hidden feature: The old string data is still there
304 * when 'in' is NULL!
305 * Some Microsoft program needs it.
308 } else {
310 * Allocate the new string
312 *old = SysAllocStringLen(str, len);
315 return 1;
318 /******************************************************************************
319 * SysAllocStringByteLen [OLEAUT32.150]
321 * Create a BSTR from an OLESTR of a given byte length.
323 * PARAMS
324 * str [I] Source to create BSTR from
325 * len [I] Length of oleStr in bytes
327 * RETURNS
328 * Success: A newly allocated BSTR
329 * Failure: NULL, if len is >= 0x80000000, or memory allocation fails.
331 * NOTES
332 * -If len is 0 or oleStr is NULL the resulting string is empty ("").
333 * -This function always NUL terminates the resulting BSTR.
334 * -oleStr may be either an LPCSTR or LPCOLESTR, since it is copied
335 * without checking for a terminating NUL.
336 * See BSTR.
338 BSTR WINAPI SysAllocStringByteLen(LPCSTR str, UINT len)
340 DWORD* newBuffer;
341 char* stringBuffer;
344 * Allocate a new buffer to hold the string.
345 * don't forget to keep an empty spot at the beginning of the
346 * buffer for the character count and an extra character at the
347 * end for the NULL.
349 newBuffer = HeapAlloc(GetProcessHeap(), 0,
350 len + sizeof(WCHAR) + sizeof(DWORD));
353 * If the memory allocation failed, return a null pointer.
355 if (newBuffer==0)
356 return 0;
359 * Copy the length of the string in the placeholder.
361 *newBuffer = len;
364 * Skip the byte count.
366 newBuffer++;
369 * Copy the information in the buffer.
370 * Since it is valid to pass a NULL pointer here, we'll initialize the
371 * buffer to nul if it is the case.
373 if (str != 0)
374 memcpy(newBuffer, str, len);
377 * Make sure that there is a nul character at the end of the
378 * string.
380 stringBuffer = (char *)newBuffer;
381 stringBuffer[len] = 0;
382 stringBuffer[len+1] = 0;
384 return (LPWSTR)stringBuffer;
387 /******************************************************************************
388 * SysReAllocString [OLEAUT32.3]
390 * Change the length of a previously created BSTR.
392 * PARAMS
393 * old [I/O] BSTR to change the length of
394 * str [I] New source for pbstr
396 * RETURNS
397 * Success: 1
398 * Failure: 0.
400 * NOTES
401 * See BSTR(), SysAllocStringStringLen().
403 INT WINAPI SysReAllocString(LPBSTR old,LPCOLESTR str)
406 * Sanity check
408 if (old==NULL)
409 return 0;
412 * Make sure we free the old string.
414 if (*old!=NULL)
415 SysFreeString(*old);
418 * Allocate the new string
420 *old = SysAllocString(str);
422 return 1;
425 /******************************************************************************
426 * SetOaNoCache (OLEAUT32.327)
428 * Instruct Ole Automation not to cache BSTR allocations.
430 * PARAMS
431 * None.
433 * RETURNS
434 * Nothing.
436 * NOTES
437 * See BSTR.
439 void WINAPI SetOaNoCache(void)
441 BSTR_bCache = FALSE;
444 static const WCHAR _delimiter[2] = {'!',0}; /* default delimiter apparently */
445 static const WCHAR *pdelimiter = &_delimiter[0];
447 /***********************************************************************
448 * RegisterActiveObject (OLEAUT32.33)
450 * Registers an object in the global item table.
452 * PARAMS
453 * punk [I] Object to register.
454 * rcid [I] CLSID of the object.
455 * dwFlags [I] Flags.
456 * pdwRegister [O] Address to store cookie of object registration in.
458 * RETURNS
459 * Success: S_OK.
460 * Failure: HRESULT code.
462 HRESULT WINAPI RegisterActiveObject(
463 LPUNKNOWN punk,REFCLSID rcid,DWORD dwFlags,LPDWORD pdwRegister
465 WCHAR guidbuf[80];
466 HRESULT ret;
467 LPRUNNINGOBJECTTABLE runobtable;
468 LPMONIKER moniker;
470 StringFromGUID2(rcid,guidbuf,39);
471 ret = CreateItemMoniker(pdelimiter,guidbuf,&moniker);
472 if (FAILED(ret))
473 return ret;
474 ret = GetRunningObjectTable(0,&runobtable);
475 if (FAILED(ret)) {
476 IMoniker_Release(moniker);
477 return ret;
479 ret = IRunningObjectTable_Register(runobtable,dwFlags,punk,moniker,pdwRegister);
480 IRunningObjectTable_Release(runobtable);
481 IMoniker_Release(moniker);
482 return ret;
485 /***********************************************************************
486 * RevokeActiveObject (OLEAUT32.34)
488 * Revokes an object from the global item table.
490 * PARAMS
491 * xregister [I] Registration cookie.
492 * reserved [I] Reserved. Set to NULL.
494 * RETURNS
495 * Success: S_OK.
496 * Failure: HRESULT code.
498 HRESULT WINAPI RevokeActiveObject(DWORD xregister,LPVOID reserved)
500 LPRUNNINGOBJECTTABLE runobtable;
501 HRESULT ret;
503 ret = GetRunningObjectTable(0,&runobtable);
504 if (FAILED(ret)) return ret;
505 ret = IRunningObjectTable_Revoke(runobtable,xregister);
506 if (SUCCEEDED(ret)) ret = S_OK;
507 IRunningObjectTable_Release(runobtable);
508 return ret;
511 /***********************************************************************
512 * GetActiveObject (OLEAUT32.35)
514 * Gets an object from the global item table.
516 * PARAMS
517 * rcid [I] CLSID of the object.
518 * preserved [I] Reserved. Set to NULL.
519 * ppunk [O] Address to store object into.
521 * RETURNS
522 * Success: S_OK.
523 * Failure: HRESULT code.
525 HRESULT WINAPI GetActiveObject(REFCLSID rcid,LPVOID preserved,LPUNKNOWN *ppunk)
527 WCHAR guidbuf[80];
528 HRESULT ret;
529 LPRUNNINGOBJECTTABLE runobtable;
530 LPMONIKER moniker;
532 StringFromGUID2(rcid,guidbuf,39);
533 ret = CreateItemMoniker(pdelimiter,guidbuf,&moniker);
534 if (FAILED(ret))
535 return ret;
536 ret = GetRunningObjectTable(0,&runobtable);
537 if (FAILED(ret)) {
538 IMoniker_Release(moniker);
539 return ret;
541 ret = IRunningObjectTable_GetObject(runobtable,moniker,ppunk);
542 IRunningObjectTable_Release(runobtable);
543 IMoniker_Release(moniker);
544 return ret;
548 /***********************************************************************
549 * OaBuildVersion [OLEAUT32.170]
551 * Get the Ole Automation build version.
553 * PARAMS
554 * None
556 * RETURNS
557 * The build version.
559 * NOTES
560 * Known oleaut32.dll versions:
561 *| OLE Ver. Comments Date Build Ver.
562 *| -------- ------------------------- ---- ---------
563 *| OLE 2.1 NT 1993-95 10 3023
564 *| OLE 2.1 10 3027
565 *| Win32s Ver 1.1e 20 4049
566 *| OLE 2.20 W95/NT 1993-96 20 4112
567 *| OLE 2.20 W95/NT 1993-96 20 4118
568 *| OLE 2.20 W95/NT 1993-96 20 4122
569 *| OLE 2.30 W95/NT 1993-98 30 4265
570 *| OLE 2.40 NT?? 1993-98 40 4267
571 *| OLE 2.40 W98 SE orig. file 1993-98 40 4275
572 *| OLE 2.40 W2K orig. file 1993-XX 40 4514
574 * Currently the versions returned are 2.20 for Win3.1, 2.30 for Win95 & NT 3.51,
575 * and 2.40 for all later versions. The build number is maximum, i.e. 0xffff.
577 ULONG WINAPI OaBuildVersion()
579 switch(GetVersion() & 0x8000ffff) /* mask off build number */
581 case 0x80000a03: /* WIN31 */
582 return MAKELONG(0xffff, 20);
583 case 0x00003303: /* NT351 */
584 return MAKELONG(0xffff, 30);
585 case 0x80000004: /* WIN95; I'd like to use the "standard" w95 minor
586 version here (30), but as we still use w95
587 as default winver (which is good IMHO), I better
588 play safe and use the latest value for w95 for now.
589 Change this as soon as default winver gets changed
590 to something more recent */
591 case 0x80000a04: /* WIN98 */
592 case 0x00000004: /* NT40 */
593 case 0x00000005: /* W2K */
594 case 0x00000105: /* WinXP */
595 return MAKELONG(0xffff, 40);
596 default:
597 FIXME("Version value not known yet. Please investigate it !\n");
598 return MAKELONG(0xffff, 40); /* for now return the same value as for w2k */
602 /******************************************************************************
603 * OleTranslateColor [OLEAUT32.421]
605 * Convert an OLE_COLOR to a COLORREF.
607 * PARAMS
608 * clr [I] Color to convert
609 * hpal [I] Handle to a palette for the conversion
610 * pColorRef [O] Destination for converted color, or NULL to test if the conversion is ok
612 * RETURNS
613 * Success: S_OK. The conversion is ok, and pColorRef contains the converted color if non-NULL.
614 * Failure: E_INVALIDARG, if any argument is invalid.
616 * FIXME
617 * Document the conversion rules.
619 HRESULT WINAPI OleTranslateColor(
620 OLE_COLOR clr,
621 HPALETTE hpal,
622 COLORREF* pColorRef)
624 COLORREF colorref;
625 BYTE b = HIBYTE(HIWORD(clr));
627 TRACE("(%08x, %p, %p)\n", clr, hpal, pColorRef);
630 * In case pColorRef is NULL, provide our own to simplify the code.
632 if (pColorRef == NULL)
633 pColorRef = &colorref;
635 switch (b)
637 case 0x00:
639 if (hpal != 0)
640 *pColorRef = PALETTERGB(GetRValue(clr),
641 GetGValue(clr),
642 GetBValue(clr));
643 else
644 *pColorRef = clr;
646 break;
649 case 0x01:
651 if (hpal != 0)
653 PALETTEENTRY pe;
655 * Validate the palette index.
657 if (GetPaletteEntries(hpal, LOWORD(clr), 1, &pe) == 0)
658 return E_INVALIDARG;
661 *pColorRef = clr;
663 break;
666 case 0x02:
667 *pColorRef = clr;
668 break;
670 case 0x80:
672 int index = LOBYTE(LOWORD(clr));
675 * Validate GetSysColor index.
677 if ((index < COLOR_SCROLLBAR) || (index > COLOR_MENUBAR))
678 return E_INVALIDARG;
680 *pColorRef = GetSysColor(index);
682 break;
685 default:
686 return E_INVALIDARG;
689 return S_OK;
692 extern HRESULT OLEAUTPS_DllGetClassObject(REFCLSID rclsid, REFIID riid, LPVOID *ppv);
694 extern void _get_STDFONT_CF(LPVOID);
695 extern void _get_STDPIC_CF(LPVOID);
697 static HRESULT WINAPI PSDispatchFacBuf_QueryInterface(IPSFactoryBuffer *iface, REFIID riid, void **ppv)
699 if (IsEqualIID(riid, &IID_IUnknown) ||
700 IsEqualIID(riid, &IID_IPSFactoryBuffer))
702 IUnknown_AddRef(iface);
703 *ppv = (void *)iface;
704 return S_OK;
706 return E_NOINTERFACE;
709 static ULONG WINAPI PSDispatchFacBuf_AddRef(IPSFactoryBuffer *iface)
711 return 2;
714 static ULONG WINAPI PSDispatchFacBuf_Release(IPSFactoryBuffer *iface)
716 return 1;
719 static HRESULT WINAPI PSDispatchFacBuf_CreateProxy(IPSFactoryBuffer *iface, IUnknown *pUnkOuter, REFIID riid, IRpcProxyBuffer **ppProxy, void **ppv)
721 IPSFactoryBuffer *pPSFB;
722 HRESULT hr;
724 if (IsEqualIID(riid, &IID_IDispatch))
725 hr = OLEAUTPS_DllGetClassObject(&CLSID_PSDispatch, &IID_IPSFactoryBuffer, (void **)&pPSFB);
726 else
727 hr = TMARSHAL_DllGetClassObject(&CLSID_PSOAInterface, &IID_IPSFactoryBuffer, (void **)&pPSFB);
729 if (FAILED(hr)) return hr;
731 hr = IPSFactoryBuffer_CreateProxy(pPSFB, pUnkOuter, riid, ppProxy, ppv);
733 IPSFactoryBuffer_Release(pPSFB);
734 return hr;
737 static HRESULT WINAPI PSDispatchFacBuf_CreateStub(IPSFactoryBuffer *iface, REFIID riid, IUnknown *pUnkOuter, IRpcStubBuffer **ppStub)
739 IPSFactoryBuffer *pPSFB;
740 HRESULT hr;
742 if (IsEqualIID(riid, &IID_IDispatch))
743 hr = OLEAUTPS_DllGetClassObject(&CLSID_PSDispatch, &IID_IPSFactoryBuffer, (void **)&pPSFB);
744 else
745 hr = TMARSHAL_DllGetClassObject(&CLSID_PSOAInterface, &IID_IPSFactoryBuffer, (void **)&pPSFB);
747 if (FAILED(hr)) return hr;
749 hr = IPSFactoryBuffer_CreateStub(pPSFB, riid, pUnkOuter, ppStub);
751 IPSFactoryBuffer_Release(pPSFB);
752 return hr;
755 static const IPSFactoryBufferVtbl PSDispatchFacBuf_Vtbl =
757 PSDispatchFacBuf_QueryInterface,
758 PSDispatchFacBuf_AddRef,
759 PSDispatchFacBuf_Release,
760 PSDispatchFacBuf_CreateProxy,
761 PSDispatchFacBuf_CreateStub
764 /* This is the whole PSFactoryBuffer object, just the vtableptr */
765 static const IPSFactoryBufferVtbl *pPSDispatchFacBuf = &PSDispatchFacBuf_Vtbl;
767 /***********************************************************************
768 * DllGetClassObject (OLEAUT32.@)
770 HRESULT WINAPI DllGetClassObject(REFCLSID rclsid, REFIID iid, LPVOID *ppv)
772 *ppv = NULL;
773 if (IsEqualGUID(rclsid,&CLSID_StdFont)) {
774 if (IsEqualGUID(iid,&IID_IClassFactory)) {
775 _get_STDFONT_CF(ppv);
776 IClassFactory_AddRef((IClassFactory*)*ppv);
777 return S_OK;
780 if (IsEqualGUID(rclsid,&CLSID_StdPicture)) {
781 if (IsEqualGUID(iid,&IID_IClassFactory)) {
782 _get_STDPIC_CF(ppv);
783 IClassFactory_AddRef((IClassFactory*)*ppv);
784 return S_OK;
787 if (IsEqualCLSID(rclsid, &CLSID_PSTypeInfo) ||
788 IsEqualCLSID(rclsid, &CLSID_PSTypeLib) ||
789 IsEqualCLSID(rclsid, &CLSID_PSEnumVariant)) {
790 return OLEAUTPS_DllGetClassObject(&CLSID_PSDispatch, iid, ppv);
792 if (IsEqualCLSID(rclsid, &CLSID_PSDispatch) && IsEqualIID(iid, &IID_IPSFactoryBuffer)) {
793 *ppv = &pPSDispatchFacBuf;
794 IPSFactoryBuffer_AddRef((IPSFactoryBuffer *)*ppv);
795 return S_OK;
797 if (IsEqualGUID(rclsid,&CLSID_PSOAInterface)) {
798 if (S_OK==TMARSHAL_DllGetClassObject(rclsid,iid,ppv))
799 return S_OK;
800 /*FALLTHROUGH*/
802 FIXME("\n\tCLSID:\t%s,\n\tIID:\t%s\n",debugstr_guid(rclsid),debugstr_guid(iid));
803 return CLASS_E_CLASSNOTAVAILABLE;
806 /***********************************************************************
807 * DllCanUnloadNow (OLEAUT32.@)
809 * Determine if this dll can be unloaded from the callers address space.
811 * PARAMS
812 * None.
814 * RETURNS
815 * Always returns S_FALSE. This dll cannot be unloaded.
817 HRESULT WINAPI DllCanUnloadNow(void)
819 return S_FALSE;
822 /*****************************************************************************
823 * DllMain [OLEAUT32.@]
825 BOOL WINAPI DllMain(HINSTANCE hInstDll, DWORD fdwReason, LPVOID lpvReserved)
827 TRACE("(%p,%d,%p)\n", hInstDll, fdwReason, lpvReserved);
829 switch (fdwReason) {
830 case DLL_PROCESS_ATTACH:
831 DisableThreadLibraryCalls(hInstDll);
832 OLEAUT32_hModule = (HMODULE)hInstDll;
833 break;
834 case DLL_PROCESS_DETACH:
835 break;
838 return TRUE;