sync with trunk r46493
[reactos.git] / dll / directx / bdaplgin / devicecontrol.cpp
1 /*
2 * COPYRIGHT: See COPYING in the top level directory
3 * PROJECT: ReactOS BDA Proxy
4 * FILE: dll/directx/bdaplgin/classfactory.cpp
5 * PURPOSE: ClassFactory interface
6 *
7 * PROGRAMMERS: Johannes Anderwald (janderwald@reactos.org)
8 */
9
10 #include "precomp.h"
11
12 const GUID IID_IKsObject = {0x423c13a2, 0x2070, 0x11d0, {0x9e, 0xf7, 0x00, 0xaa, 0x00, 0xa2, 0x16, 0xa1}};
13
14 #ifndef _MSC_VER
15 const GUID CLSID_DVBTNetworkProvider = {0x216c62df, 0x6d7f, 0x4e9a, {0x85, 0x71, 0x5, 0xf1, 0x4e, 0xdb, 0x76, 0x6a}};
16
17 const GUID KSPROPSETID_BdaTopology = {0xa14ee835, 0x0a23, 0x11d3, {0x9c, 0xc7, 0x0, 0xc0, 0x4f, 0x79, 0x71, 0xe0}};
18 const GUID KSMETHODSETID_BdaDeviceConfiguration = {0x71985f45, 0x1ca1, 0x11d3, {0x9c, 0xc8, 0x0, 0xc0, 0x4f, 0x79, 0x71, 0xe0}};
19 const GUID KSMETHODSETID_BdaChangeSync = {0xfd0a5af3, 0xb41d, 0x11d2, {0x9c, 0x95, 0x0, 0xc0, 0x4f, 0x79, 0x71, 0xe0}};
20 const GUID IID_IBaseFilter = {0x56a86895, 0x0ad4, 0x11ce, {0xb0,0x3a, 0x00,0x20,0xaf,0x0b,0xa7,0x70}};
21 const GUID IID_IAsyncReader = {0x56A868AA, 0x0AD4, 0x11CE, {0xB0, 0x3A, 0x00, 0x20, 0xAF, 0x0B, 0xA7, 0x70}};
22 const GUID IID_IAMOpenProgress = {0x8E1C39A1, 0xDE53, 0x11cf, {0xAA, 0x63, 0x00, 0x80, 0xC7, 0x44, 0x52, 0x8D}};
23 const GUID IID_IBDA_Topology = {0x79B56888, 0x7FEA, 0x4690, {0xB4, 0x5D, 0x38, 0xFD, 0x3C, 0x78, 0x49, 0xBE}};
24 const GUID IID_IBDA_NetworkProvider = {0xfd501041, 0x8ebe, 0x11ce, {0x81, 0x83, 0x00, 0xaa, 0x00, 0x57, 0x7d, 0xa2}};
25 const GUID IID_IBDA_DeviceControl = {0xFD0A5AF3, 0xB41D, 0x11d2, {0x9C, 0x95, 0x00, 0xC0, 0x4F, 0x79, 0x71, 0xE0}};
26
27 const GUID IID_IDistributorNotify = {0x56a868af, 0x0ad4, 0x11ce, {0xb0, 0x3a, 0x00, 0x20, 0xaf, 0x0b, 0xa7, 0x70}};
28
29 #endif
30
31 class CBDADeviceControl : public IBDA_DeviceControl,
32 public IBDA_Topology
33 {
34 public:
35 STDMETHODIMP QueryInterface( REFIID InterfaceId, PVOID* Interface);
36
37 STDMETHODIMP_(ULONG) AddRef()
38 {
39 InterlockedIncrement(&m_Ref);
40 return m_Ref;
41 }
42 STDMETHODIMP_(ULONG) Release()
43 {
44 InterlockedDecrement(&m_Ref);
45 if (!m_Ref)
46 {
47 delete this;
48 return 0;
49 }
50 return m_Ref;
51 }
52
53 // IBDA_DeviceControl methods
54 HRESULT STDMETHODCALLTYPE StartChanges( void);
55 HRESULT STDMETHODCALLTYPE CheckChanges( void);
56 HRESULT STDMETHODCALLTYPE CommitChanges( void);
57 HRESULT STDMETHODCALLTYPE GetChangeState(ULONG *pState);
58
59 // IBDA_Topology methods
60 HRESULT STDMETHODCALLTYPE GetNodeTypes(ULONG *pulcNodeTypes, ULONG ulcNodeTypesMax, ULONG * rgulNodeTypes);
61 HRESULT STDMETHODCALLTYPE GetNodeDescriptors(ULONG *ulcNodeDescriptors, ULONG ulcNodeDescriptorsMax, BDANODE_DESCRIPTOR * rgNodeDescriptors);
62 HRESULT STDMETHODCALLTYPE GetNodeInterfaces(ULONG ulNodeType, ULONG *pulcInterfaces, ULONG ulcInterfacesMax, GUID * rgguidInterfaces);
63 HRESULT STDMETHODCALLTYPE GetPinTypes(ULONG *pulcPinTypes, ULONG ulcPinTypesMax, ULONG *rgulPinTypes);
64 HRESULT STDMETHODCALLTYPE GetTemplateConnections(ULONG *pulcConnections, ULONG ulcConnectionsMax, BDA_TEMPLATE_CONNECTION * rgConnections);
65 HRESULT STDMETHODCALLTYPE CreatePin(ULONG ulPinType, ULONG *pulPinId);
66 HRESULT STDMETHODCALLTYPE DeletePin(ULONG ulPinId);
67 HRESULT STDMETHODCALLTYPE SetMediaType(ULONG ulPinId, AM_MEDIA_TYPE *pMediaType);
68 HRESULT STDMETHODCALLTYPE SetMedium(ULONG ulPinId, REGPINMEDIUM *pMedium);
69 HRESULT STDMETHODCALLTYPE CreateTopology(ULONG ulInputPinId, ULONG ulOutputPinId);
70 HRESULT STDMETHODCALLTYPE GetControlNode(ULONG ulInputPinId, ULONG ulOutputPinId, ULONG ulNodeType, IUnknown **ppControlNode);
71
72 CBDADeviceControl(IUnknown * pUnkOuter, IBaseFilter *pFilter, HANDLE hFile) : m_Ref(0), m_pUnkOuter(pUnkOuter), m_Handle(hFile), m_pFilter(pFilter){};
73 virtual ~CBDADeviceControl(){};
74
75 protected:
76 LONG m_Ref;
77 IUnknown * m_pUnkOuter;
78 HANDLE m_Handle;
79 IBaseFilter * m_pFilter;
80 };
81
82 HRESULT
83 STDMETHODCALLTYPE
84 CBDADeviceControl::QueryInterface(
85 IN REFIID refiid,
86 OUT PVOID* Output)
87 {
88 *Output = NULL;
89
90 if (IsEqualGUID(refiid, IID_IUnknown))
91 {
92 *Output = PVOID(this);
93 reinterpret_cast<IUnknown*>(*Output)->AddRef();
94 return NOERROR;
95 }
96 if (IsEqualGUID(refiid, IID_IBDA_DeviceControl))
97 {
98 *Output = (IBDA_DeviceControl*)(this);
99 reinterpret_cast<IBDA_DeviceControl*>(*Output)->AddRef();
100 return NOERROR;
101 }
102
103 if (IsEqualGUID(refiid, IID_IBDA_Topology))
104 {
105 *Output = (IBDA_Topology*)(this);
106 reinterpret_cast<IBDA_Topology*>(*Output)->AddRef();
107 return NOERROR;
108 }
109
110 return E_NOINTERFACE;
111 }
112
113
114 //-------------------------------------------------------------------
115 // IBDA_DeviceControl methods
116 //
117 HRESULT
118 STDMETHODCALLTYPE
119 CBDADeviceControl::StartChanges( void)
120 {
121 KSMETHOD Method;
122 HRESULT hr;
123 ULONG BytesReturned;
124
125 /* setup request */
126 Method.Set = KSMETHODSETID_BdaChangeSync;
127 Method.Id = KSMETHOD_BDA_START_CHANGES;
128 Method.Flags = KSMETHOD_TYPE_NONE;
129
130 /* execute request */
131 hr = KsSynchronousDeviceControl(m_Handle, IOCTL_KS_METHOD, (PVOID)&Method, sizeof(KSMETHOD), NULL, 0, &BytesReturned);
132
133 #ifdef BDAPLGIN_TRACE
134 WCHAR Buffer[100];
135 swprintf(Buffer, L"CBDADeviceControl::StartChanges: hr %lx, BytesReturned %lu\n", hr, BytesReturned);
136 OutputDebugStringW(Buffer);
137 #endif
138
139 return hr;
140 }
141
142
143 HRESULT
144 STDMETHODCALLTYPE
145 CBDADeviceControl::CheckChanges( void)
146 {
147 KSMETHOD Method;
148 HRESULT hr;
149 ULONG BytesReturned;
150
151 /* setup request */
152 Method.Set = KSMETHODSETID_BdaChangeSync;
153 Method.Id = KSMETHOD_BDA_CHECK_CHANGES;
154 Method.Flags = KSMETHOD_TYPE_NONE;
155
156 /* execute request */
157 hr = KsSynchronousDeviceControl(m_Handle, IOCTL_KS_METHOD, (PVOID)&Method, sizeof(KSMETHOD), NULL, 0, &BytesReturned);
158
159 #ifdef BDAPLGIN_TRACE
160 WCHAR Buffer[100];
161 swprintf(Buffer, L"CBDADeviceControl::CheckChanges: hr %lx, BytesReturned %lu\n", hr, BytesReturned);
162 OutputDebugStringW(Buffer);
163 #endif
164
165 return hr;
166 }
167
168
169 HRESULT
170 STDMETHODCALLTYPE
171 CBDADeviceControl::CommitChanges( void)
172 {
173 KSMETHOD Method;
174 HRESULT hr;
175 ULONG BytesReturned;
176
177 /* setup request */
178 Method.Set = KSMETHODSETID_BdaChangeSync;
179 Method.Id = KSMETHOD_BDA_COMMIT_CHANGES;
180 Method.Flags = KSMETHOD_TYPE_NONE;
181
182 /* execute request */
183 hr = KsSynchronousDeviceControl(m_Handle, IOCTL_KS_METHOD, (PVOID)&Method, sizeof(KSMETHOD), NULL, 0, &BytesReturned);
184
185 #ifdef BDAPLGIN_TRACE
186 WCHAR Buffer[100];
187 swprintf(Buffer, L"CBDADeviceControl::CommitChanges: hr %lx, BytesReturned %lu\n", hr, BytesReturned);
188 OutputDebugStringW(Buffer);
189 #endif
190
191 return hr;
192 }
193
194 HRESULT
195 STDMETHODCALLTYPE
196 CBDADeviceControl::GetChangeState(ULONG *pState)
197 {
198 if (pState)
199 {
200 *pState = BDA_CHANGES_COMPLETE;
201 return S_OK;
202 }
203 else
204 {
205 return E_POINTER;
206 }
207 }
208
209 //-------------------------------------------------------------------
210 // IBDA_Topology methods
211 //
212 HRESULT
213 STDMETHODCALLTYPE
214 CBDADeviceControl::GetNodeTypes(ULONG *pulcNodeTypes, ULONG ulcNodeTypesMax, ULONG * rgulNodeTypes)
215 {
216 KSPROPERTY Property;
217 HRESULT hr;
218 ULONG BytesReturned;
219
220 // setup request
221 Property.Set = KSPROPSETID_BdaTopology;
222 Property.Id = KSPROPERTY_BDA_NODE_TYPES;
223 Property.Flags = KSPROPERTY_TYPE_GET;
224
225 // perform request
226 hr = KsSynchronousDeviceControl(m_Handle, IOCTL_KS_PROPERTY, (PVOID)&Property, sizeof(KSPROPERTY), rgulNodeTypes, sizeof(ULONG) * ulcNodeTypesMax, &BytesReturned);
227
228 *pulcNodeTypes = (BytesReturned / sizeof(ULONG));
229
230 #ifdef BDAPLGIN_TRACE
231 WCHAR Buffer[100];
232 swprintf(Buffer, L"CBDADeviceControl::GetNodeTypes: hr %lx, BytesReturned %lu\n", hr, BytesReturned);
233 OutputDebugStringW(Buffer);
234
235 if (SUCCEEDED(hr))
236 {
237 for(ULONG Index = 0; Index < *pulcNodeTypes; Index++)
238 {
239 swprintf(Buffer, L"CBDADeviceControl::GetPinTypes: Index %lu Value %lx\n", Index, rgulNodeTypes[Index]);
240 OutputDebugStringW(Buffer);
241 }
242 }
243 #endif
244
245 return hr;
246 }
247
248 HRESULT
249 STDMETHODCALLTYPE
250 CBDADeviceControl::GetNodeDescriptors(ULONG *ulcNodeDescriptors, ULONG ulcNodeDescriptorsMax, BDANODE_DESCRIPTOR * rgNodeDescriptors)
251 {
252 KSPROPERTY Property;
253 HRESULT hr;
254 ULONG BytesReturned;
255
256
257 // setup request
258 Property.Set = KSPROPSETID_BdaTopology;
259 Property.Id = KSPROPERTY_BDA_NODE_DESCRIPTORS;
260 Property.Flags = KSPROPERTY_TYPE_GET;
261
262 // perform request
263 hr = KsSynchronousDeviceControl(m_Handle, IOCTL_KS_PROPERTY, (PVOID)&Property, sizeof(KSPROPERTY), rgNodeDescriptors, sizeof(BDANODE_DESCRIPTOR) * ulcNodeDescriptorsMax, &BytesReturned);
264
265 *ulcNodeDescriptors = (BytesReturned / sizeof(BDANODE_DESCRIPTOR));
266
267 #ifdef BDAPLGIN_TRACE
268 WCHAR Buffer[1000];
269 swprintf(Buffer, L"CBDADeviceControl::GetNodeDescriptors: hr %lx, BytesReturned %lu\n", hr, BytesReturned);
270 OutputDebugStringW(Buffer);
271
272
273 if (SUCCEEDED(hr))
274 {
275 for(ULONG Index = 0; Index < min(*ulcNodeDescriptors, ulcNodeDescriptorsMax); Index++)
276 {
277 LPOLESTR pGUIDFunction, pGUIDName;
278
279 StringFromCLSID(rgNodeDescriptors[Index].guidFunction, &pGUIDFunction);
280 StringFromCLSID(rgNodeDescriptors[Index].guidName, &pGUIDName);
281
282 swprintf(Buffer, L"CBDADeviceControl::GetPinTypes: Index %lu Value %lx\nFunction %s\n Name %s\n-----\n", Index, rgNodeDescriptors[Index].ulBdaNodeType, pGUIDFunction, pGUIDName);
283 OutputDebugStringW(Buffer);
284 }
285 }
286 #endif
287
288
289 return hr;
290 }
291
292 HRESULT
293 STDMETHODCALLTYPE
294 CBDADeviceControl::GetNodeInterfaces(ULONG ulNodeType, ULONG *pulcInterfaces, ULONG ulcInterfacesMax, GUID * rgguidInterfaces)
295 {
296 KSP_NODE Property;
297 HRESULT hr;
298 ULONG BytesReturned;
299
300
301 // setup request
302 Property.Property.Set = KSPROPSETID_BdaTopology;
303 Property.Property.Id = KSPROPERTY_BDA_NODE_PROPERTIES;
304 Property.Property.Flags = KSPROPERTY_TYPE_GET;
305 Property.NodeId = ulNodeType;
306 Property.Reserved = 0;
307
308 // perform request
309 hr = KsSynchronousDeviceControl(m_Handle, IOCTL_KS_PROPERTY, (PVOID)&Property, sizeof(KSP_NODE), rgguidInterfaces, sizeof(GUID) * ulcInterfacesMax, &BytesReturned);
310
311 *pulcInterfaces = (BytesReturned / sizeof(GUID));
312
313 #ifdef BDAPLGIN_TRACE
314 WCHAR Buffer[100];
315 swprintf(Buffer, L"CBDADeviceControl::GetNodeInterfaces: hr %lx, BytesReturned %lu ulNodeType %lu\n", hr, BytesReturned, ulNodeType);
316 OutputDebugStringW(Buffer);
317
318 if (SUCCEEDED(hr))
319 {
320 for(ULONG Index = 0; Index < min(*pulcInterfaces, ulcInterfacesMax); Index++)
321 {
322 LPOLESTR pstr;
323
324 StringFromCLSID(rgguidInterfaces[Index], &pstr);
325
326 swprintf(Buffer, L"CBDADeviceControl::GetNodeInterfaces: Index %lu Name %s\n", Index, pstr);
327 OutputDebugStringW(Buffer);
328 }
329 }
330 #endif
331
332 return hr;
333 }
334
335 HRESULT
336 STDMETHODCALLTYPE
337 CBDADeviceControl::GetPinTypes(ULONG *pulcPinTypes, ULONG ulcPinTypesMax, ULONG *rgulPinTypes)
338 {
339 KSPROPERTY Property;
340 HRESULT hr;
341 ULONG BytesReturned;
342
343 // setup request
344 Property.Set = KSPROPSETID_BdaTopology;
345 Property.Id = KSPROPERTY_BDA_PIN_TYPES;
346 Property.Flags = KSPROPERTY_TYPE_GET;
347
348 // perform request
349 hr = KsSynchronousDeviceControl(m_Handle, IOCTL_KS_PROPERTY, (PVOID)&Property, sizeof(KSPROPERTY), rgulPinTypes, sizeof(ULONG) * ulcPinTypesMax, &BytesReturned);
350
351 *pulcPinTypes = (BytesReturned / sizeof(ULONG));
352
353 #ifdef BDAPLGIN_TRACE
354 WCHAR Buffer[100];
355 swprintf(Buffer, L"CBDADeviceControl::GetPinTypes: hr %lx, BytesReturned %lu\n", hr, BytesReturned);
356 OutputDebugStringW(Buffer);
357
358 if (SUCCEEDED(hr))
359 {
360 for(ULONG Index = 0; Index < *pulcPinTypes; Index++)
361 {
362 swprintf(Buffer, L"CBDADeviceControl::GetPinTypes: Index %lu Value %lx\n", Index, rgulPinTypes[Index]);
363 OutputDebugStringW(Buffer);
364 }
365 }
366 #endif
367
368 return hr;
369 }
370
371 HRESULT
372 STDMETHODCALLTYPE
373 CBDADeviceControl::GetTemplateConnections(ULONG *pulcConnections, ULONG ulcConnectionsMax, BDA_TEMPLATE_CONNECTION * rgConnections)
374 {
375 #ifdef BDAPLGIN_TRACE
376 OutputDebugStringW(L"CBDADeviceControl::GetTemplateConnections: NotImplemented\n");
377 #endif
378
379 return E_NOTIMPL;
380 }
381
382 HRESULT
383 STDMETHODCALLTYPE
384 CBDADeviceControl::CreatePin(ULONG ulPinType, ULONG *pulPinId)
385 {
386 #ifdef BDAPLGIN_TRACE
387 OutputDebugStringW(L"CBDADeviceControl::CreatePin: NotImplemented\n");
388 #endif
389
390 return E_NOTIMPL;
391 }
392
393 HRESULT
394 STDMETHODCALLTYPE
395 CBDADeviceControl::DeletePin(ULONG ulPinId)
396 {
397 #ifdef BDAPLGIN_TRACE
398 OutputDebugStringW(L"CBDADeviceControl::DeletePin: NotImplemented\n");
399 #endif
400
401 return E_NOTIMPL;
402 }
403
404 HRESULT
405 STDMETHODCALLTYPE
406 CBDADeviceControl::SetMediaType(ULONG ulPinId, AM_MEDIA_TYPE *pMediaType)
407 {
408 #ifdef BDAPLGIN_TRACE
409 OutputDebugStringW(L"CBDADeviceControl::SetMediaType: NotImplemented\n");
410 #endif
411
412 return E_NOTIMPL;
413 }
414
415 HRESULT
416 STDMETHODCALLTYPE
417 CBDADeviceControl::SetMedium(ULONG ulPinId, REGPINMEDIUM *pMedium)
418 {
419 #ifdef BDAPLGIN_TRACE
420 OutputDebugStringW(L"CBDADeviceControl::SetMedium: NotImplemented\n");
421 #endif
422
423 return E_NOTIMPL;
424 }
425
426 HRESULT
427 STDMETHODCALLTYPE
428 CBDADeviceControl::CreateTopology(ULONG ulInputPinId, ULONG ulOutputPinId)
429 {
430 KSM_BDA_PIN_PAIR Method;
431 HRESULT hr;
432 ULONG BytesReturned = 0;
433
434 Method.Method.Flags = KSMETHOD_TYPE_NONE;
435 Method.Method.Id = KSMETHOD_BDA_CREATE_TOPOLOGY;
436 Method.Method.Set = KSMETHODSETID_BdaDeviceConfiguration;
437 Method.InputPinId = ulInputPinId;
438 Method.OutputPinId = ulOutputPinId;
439
440 hr = KsSynchronousDeviceControl(m_Handle, IOCTL_KS_METHOD, (PVOID)&Method, sizeof(KSM_BDA_PIN_PAIR), NULL, 0, &BytesReturned);
441
442 #ifdef BDAPLGIN_TRACE
443 WCHAR Buffer[100];
444 swprintf(Buffer, L"CBDADeviceControl::CreateTopology: hr %lx, BytesReturned %lu\n", hr, BytesReturned);
445 OutputDebugStringW(Buffer);
446 #endif
447
448 return hr;
449 }
450
451 HRESULT
452 STDMETHODCALLTYPE
453 CBDADeviceControl::GetControlNode(ULONG ulInputPinId, ULONG ulOutputPinId, ULONG ulNodeType, IUnknown **ppControlNode)
454 {
455 HRESULT hr;
456 ULONG PinId = 0;
457 ULONG BytesReturned;
458 KSP_BDA_NODE_PIN Property;
459
460 //setup request
461 Property.Property.Set = KSPROPSETID_BdaTopology;
462 Property.Property.Id = KSPROPERTY_BDA_CONTROLLING_PIN_ID;
463 Property.Property.Flags = KSPROPERTY_TYPE_GET;
464 Property.ulInputPinId = ulInputPinId;
465 Property.ulOutputPinId = ulOutputPinId;
466 Property.ulNodeType = ulNodeType;
467
468 // perform request
469 // WinXP SP3 expects minimum sizeof(KSP_BDA_NODE_PIN) + sizeof(ULONG)
470 // seems a driver to be a driver bug
471
472 hr = KsSynchronousDeviceControl(m_Handle, IOCTL_KS_PROPERTY, (PVOID)&Property, sizeof(KSP_BDA_NODE_PIN) + sizeof(ULONG), &PinId, sizeof(ULONG), &BytesReturned);
473
474 #ifdef BDAPLGIN_TRACE
475 WCHAR Buffer[200];
476 swprintf(Buffer, L"CBDADeviceControl::GetControlNode: hr %lx, BytesReturned %lu PinId %lu ulInputPinId %lu ulOutputPinId %lu ulNodeType %lu\n", hr, BytesReturned, PinId, ulInputPinId, ulOutputPinId, ulNodeType);
477 OutputDebugStringW(Buffer);
478 #endif
479
480 if (FAILED(hr))
481 return hr;
482
483 hr = CControlNode_fnConstructor(m_pFilter, ulNodeType, PinId, IID_IUnknown, (LPVOID*)ppControlNode);
484
485 #ifdef BDAPLGIN_TRACE
486 swprintf(Buffer, L"CBDADeviceControl::GetControlNode: hr %lx\n", hr);
487 OutputDebugStringW(Buffer);
488 #endif
489
490 return hr;
491 }
492
493 HRESULT
494 WINAPI
495 CBDADeviceControl_fnConstructor(
496 IUnknown * pUnkOuter,
497 REFIID riid,
498 LPVOID * ppv)
499 {
500 HRESULT hr;
501 IKsObject *pObject = NULL;
502 IBaseFilter *pFilter = NULL;
503 HANDLE hFile;
504
505 #ifdef BDAPLGIN_TRACE
506 OutputDebugStringW(L"CBDADeviceControl_fnConstructor\n");
507 #endif
508
509 //DebugBreak();
510
511 // sanity check
512 assert(pUnkOuter);
513
514 // query for IKsObject
515 hr = pUnkOuter->QueryInterface(IID_IKsObject, (void**)&pObject);
516
517 if (FAILED(hr))
518 return E_NOINTERFACE;
519
520 // sanity check
521 assert(hr == NOERROR);
522
523 // query for IBaseFilter interface support
524 hr = pUnkOuter->QueryInterface(IID_IBaseFilter, (void**)&pFilter);
525
526 if (FAILED(hr))
527 {
528 // release
529 pObject->Release();
530 return E_NOINTERFACE;
531 }
532
533 // another sanity check
534 assert(pObject != NULL);
535
536 // get file handle
537 hFile = pObject->KsGetObjectHandle();
538
539 // one more sanity check
540 assert(hFile != NULL && hFile != INVALID_HANDLE_VALUE);
541
542 // release IKsObject interface
543 pObject->Release();
544
545 // release filter
546 pFilter->Release();
547
548 // construct device control
549 CBDADeviceControl * handler = new CBDADeviceControl(pUnkOuter, pFilter, hFile);
550
551 if (!handler)
552 return E_OUTOFMEMORY;
553
554 if (FAILED(handler->QueryInterface(riid, ppv)))
555 {
556 /* not supported */
557 delete handler;
558 return E_NOINTERFACE;
559 }
560
561 return NOERROR;
562 }