3 * Copyright 1998 Marcus Meissner
4 * Copyright 1998 Rob Riggs
5 * Copyright 2000-2002 TransGaming Technologies, Inc.
7 * This library is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU Lesser General Public
9 * License as published by the Free Software Foundation; either
10 * version 2.1 of the License, or (at your option) any later version.
12 * This library is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Lesser General Public License for more details.
17 * You should have received a copy of the GNU Lesser General Public
18 * License along with this library; if not, write to the Free Software
19 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
33 #include "wine/debug.h"
36 #include "dsound_private.h"
39 #ifdef NONAMELESSSTRUCT
45 WINE_DEFAULT_DEBUG_CHANNEL(dsound);
47 typedef struct IKsPrivatePropertySetImpl
49 IKsPropertySet IKsPropertySet_iface;
51 } IKsPrivatePropertySetImpl;
53 static IKsPrivatePropertySetImpl *impl_from_IKsPropertySet(IKsPropertySet *iface)
55 return CONTAINING_RECORD(iface, IKsPrivatePropertySetImpl, IKsPropertySet_iface);
58 /*******************************************************************************
59 * IKsPrivatePropertySet
62 /* IUnknown methods */
63 static HRESULT WINAPI IKsPrivatePropertySetImpl_QueryInterface(
64 LPKSPROPERTYSET iface,
68 IKsPrivatePropertySetImpl *This = impl_from_IKsPropertySet(iface);
69 TRACE("(%p,%s,%p)\n",This,debugstr_guid(riid),ppobj);
71 if (IsEqualIID(riid, &IID_IUnknown) ||
72 IsEqualIID(riid, &IID_IKsPropertySet)) {
74 IUnknown_AddRef(iface);
81 static ULONG WINAPI IKsPrivatePropertySetImpl_AddRef(LPKSPROPERTYSET iface)
83 IKsPrivatePropertySetImpl *This = impl_from_IKsPropertySet(iface);
84 ULONG ref = InterlockedIncrement(&(This->ref));
85 TRACE("(%p) ref was %d\n", This, ref - 1);
89 static ULONG WINAPI IKsPrivatePropertySetImpl_Release(LPKSPROPERTYSET iface)
91 IKsPrivatePropertySetImpl *This = impl_from_IKsPropertySet(iface);
92 ULONG ref = InterlockedDecrement(&(This->ref));
93 TRACE("(%p) ref was %d\n", This, ref + 1);
96 HeapFree(GetProcessHeap(), 0, This);
97 TRACE("(%p) released\n", This);
102 static HRESULT DSPROPERTY_WaveDeviceMappingW(
107 HRESULT hr = DSERR_INVALIDPARAM;
108 PDSPROPERTY_DIRECTSOUNDDEVICE_WAVEDEVICEMAPPING_W_DATA ppd;
109 TRACE("(pPropData=%p,cbPropData=%d,pcbReturned=%p)\n",
110 pPropData,cbPropData,pcbReturned);
115 WARN("invalid parameter: pPropData\n");
116 return DSERR_INVALIDPARAM;
119 if (ppd->DataFlow == DIRECTSOUNDDEVICE_DATAFLOW_RENDER) {
122 TRACE("DataFlow=DIRECTSOUNDDEVICE_DATAFLOW_RENDER\n");
123 wodn = waveOutGetNumDevs();
124 for (wod = 0; wod < wodn; wod++) {
127 res = waveOutGetDevCapsW(wod, &capsW, sizeof(capsW));
128 if (res == MMSYSERR_NOERROR) {
129 if (lstrcmpW(capsW.szPname, ppd->DeviceName) == 0) {
130 ppd->DeviceId = DSOUND_renderer_guids[wod];
132 TRACE("found %s for %s\n", debugstr_guid(&ppd->DeviceId),
133 debugstr_w(ppd->DeviceName));
138 } else if (ppd->DataFlow == DIRECTSOUNDDEVICE_DATAFLOW_CAPTURE) {
141 TRACE("DataFlow=DIRECTSOUNDDEVICE_DATAFLOW_CAPTURE\n");
142 widn = waveInGetNumDevs();
143 for (wid = 0; wid < widn; wid++) {
146 res = waveInGetDevCapsW(wid, &capsW, sizeof(capsW));
147 if (res == MMSYSERR_NOERROR) {
148 if (lstrcmpW(capsW.szPname, ppd->DeviceName) == 0) {
149 ppd->DeviceId = DSOUND_capture_guids[wid];
151 TRACE("found %s for %s\n", debugstr_guid(&ppd->DeviceId),
152 debugstr_w(ppd->DeviceName));
160 *pcbReturned = cbPropData;
165 static HRESULT DSPROPERTY_WaveDeviceMappingA(
170 DSPROPERTY_DIRECTSOUNDDEVICE_WAVEDEVICEMAPPING_A_DATA *ppd = pPropData;
171 DSPROPERTY_DIRECTSOUNDDEVICE_WAVEDEVICEMAPPING_W_DATA data;
175 TRACE("(pPropData=%p,cbPropData=%d,pcbReturned=%p)\n",
176 pPropData,cbPropData,pcbReturned);
178 if (!ppd || !ppd->DeviceName) {
179 WARN("invalid parameter: ppd=%p\n", ppd);
180 return DSERR_INVALIDPARAM;
183 data.DataFlow = ppd->DataFlow;
184 len = MultiByteToWideChar(CP_ACP, 0, ppd->DeviceName, -1, NULL, 0);
185 data.DeviceName = HeapAlloc(GetProcessHeap(), 0, len * sizeof(WCHAR));
186 if (!data.DeviceName)
187 return E_OUTOFMEMORY;
188 MultiByteToWideChar(CP_ACP, 0, ppd->DeviceName, -1, data.DeviceName, len);
190 hr = DSPROPERTY_WaveDeviceMappingW(&data, cbPropData, pcbReturned);
191 HeapFree(GetProcessHeap(), 0, data.DeviceName);
192 ppd->DeviceId = data.DeviceId;
195 *pcbReturned = cbPropData;
200 static HRESULT DSPROPERTY_DescriptionW(
205 PDSPROPERTY_DIRECTSOUNDDEVICE_DESCRIPTION_W_DATA ppd = pPropData;
208 ULONG wod, wid, wodn, widn;
211 TRACE("pPropData=%p,cbPropData=%d,pcbReturned=%p)\n",
212 pPropData,cbPropData,pcbReturned);
214 TRACE("DeviceId=%s\n",debugstr_guid(&ppd->DeviceId));
215 if ( IsEqualGUID( &ppd->DeviceId , &GUID_NULL) ) {
216 /* default device of type specified by ppd->DataFlow */
217 if (ppd->DataFlow == DIRECTSOUNDDEVICE_DATAFLOW_CAPTURE) {
218 TRACE("DataFlow=DIRECTSOUNDDEVICE_DATAFLOW_CAPTURE\n");
219 ppd->DeviceId = DSDEVID_DefaultCapture;
220 } else if (ppd->DataFlow == DIRECTSOUNDDEVICE_DATAFLOW_RENDER) {
221 TRACE("DataFlow=DIRECTSOUNDDEVICE_DATAFLOW_RENDER\n");
222 ppd->DeviceId = DSDEVID_DefaultPlayback;
224 WARN("DataFlow=Unknown(%d)\n", ppd->DataFlow);
225 return E_PROP_ID_UNSUPPORTED;
229 setup_dsound_options();
231 GetDeviceID(&ppd->DeviceId, &dev_guid);
233 wodn = waveOutGetNumDevs();
234 widn = waveInGetNumDevs();
235 wid = wod = dev_guid.Data4[7];
236 if (!memcmp(&dev_guid, &DSOUND_renderer_guids[0], sizeof(GUID)-1)
239 ppd->DataFlow = DIRECTSOUNDDEVICE_DATAFLOW_RENDER;
240 ppd->WaveDeviceId = wod;
242 else if (!memcmp(&dev_guid, &DSOUND_capture_guids[0], sizeof(GUID)-1)
245 ppd->DataFlow = DIRECTSOUNDDEVICE_DATAFLOW_CAPTURE;
246 ppd->WaveDeviceId = wid;
250 WARN("Device not found\n");
251 return E_PROP_ID_UNSUPPORTED;
254 if (ppd->DataFlow == DIRECTSOUNDDEVICE_DATAFLOW_RENDER)
255 err = waveOutMessage(UlongToHandle(wod),DRV_QUERYDSOUNDDESC,(DWORD_PTR)&desc,ds_hw_accel);
257 err = waveInMessage(UlongToHandle(wod),DRV_QUERYDSOUNDDESC,(DWORD_PTR)&desc,ds_hw_accel);
259 if (err != MMSYSERR_NOERROR)
261 WARN("waveMessage(DRV_QUERYDSOUNDDESC) failed!\n");
262 return E_PROP_ID_UNSUPPORTED;
266 /* FIXME: Still a memory leak.. */
268 static WCHAR wInterface[] = { 'I','n','t','e','r','f','a','c','e',0 };
270 modlen = MultiByteToWideChar( CP_ACP, 0, desc.szDrvname, -1, NULL, 0 );
271 desclen = MultiByteToWideChar( CP_ACP, 0, desc.szDesc, -1, NULL, 0 );
272 ppd->Module = HeapAlloc(GetProcessHeap(),0,modlen*sizeof(WCHAR));
273 ppd->Description = HeapAlloc(GetProcessHeap(),0,desclen*sizeof(WCHAR));
274 ppd->Interface = wInterface;
275 if (!ppd->Description || !ppd->Module)
277 WARN("Out of memory\n");
278 HeapFree(GetProcessHeap(), 0, ppd->Description);
279 HeapFree(GetProcessHeap(), 0, ppd->Module);
280 ppd->Description = ppd->Module = NULL;
281 return E_OUTOFMEMORY;
284 MultiByteToWideChar( CP_ACP, 0, desc.szDrvname, -1, ppd->Module, modlen );
285 MultiByteToWideChar( CP_ACP, 0, desc.szDesc, -1, ppd->Description, desclen );
288 ppd->Type = DIRECTSOUNDDEVICE_TYPE_VXD;
291 *pcbReturned = sizeof(*ppd);
292 TRACE("*pcbReturned=%d\n", *pcbReturned);
298 static HRESULT DSPROPERTY_EnumerateW(
303 PDSPROPERTY_DIRECTSOUNDDEVICE_ENUMERATE_W_DATA ppd = pPropData;
304 DSPROPERTY_DIRECTSOUNDDEVICE_DESCRIPTION_W_DATA data;
307 TRACE("(pPropData=%p,cbPropData=%d,pcbReturned=%p)\n",
308 pPropData,cbPropData,pcbReturned);
313 if (!ppd || !ppd->Callback)
315 WARN("Invalid ppd %p\n", ppd);
316 return E_PROP_ID_UNSUPPORTED;
319 wodn = waveOutGetNumDevs();
320 widn = waveInGetNumDevs();
322 data.DeviceId = DSOUND_renderer_guids[0];
323 for (i = 0; i < wodn; ++i)
326 data.DeviceId.Data4[7] = i;
327 hr = DSPROPERTY_DescriptionW(&data, sizeof(data), NULL);
330 ERR("DescriptionW failed!\n");
333 ret = ppd->Callback(&data, ppd->Context);
334 HeapFree(GetProcessHeap(), 0, data.Module);
335 HeapFree(GetProcessHeap(), 0, data.Description);
340 data.DeviceId = DSOUND_capture_guids[0];
341 for (i = 0; i < widn; ++i)
344 data.DeviceId.Data4[7] = i;
345 hr = DSPROPERTY_DescriptionW(&data, sizeof(data), NULL);
348 ERR("DescriptionW failed!\n");
351 ret = ppd->Callback(&data, ppd->Context);
352 HeapFree(GetProcessHeap(), 0, data.Module);
353 HeapFree(GetProcessHeap(), 0, data.Description);
360 static BOOL DSPROPERTY_descWtoA(const DSPROPERTY_DIRECTSOUNDDEVICE_DESCRIPTION_W_DATA *dataW,
361 DSPROPERTY_DIRECTSOUNDDEVICE_DESCRIPTION_A_DATA *dataA)
363 DWORD modlen, desclen;
364 static char Interface[] = "Interface";
366 modlen = WideCharToMultiByte(CP_ACP, 0, dataW->Module, -1, NULL, 0, NULL, NULL);
367 desclen = WideCharToMultiByte(CP_ACP, 0, dataW->Description, -1, NULL, 0, NULL, NULL);
368 dataA->Type = dataW->Type;
369 dataA->DataFlow = dataW->DataFlow;
370 dataA->DeviceId = dataW->DeviceId;
371 dataA->WaveDeviceId = dataW->WaveDeviceId;
372 dataA->Interface = Interface;
373 dataA->Module = HeapAlloc(GetProcessHeap(), 0, modlen);
374 dataA->Description = HeapAlloc(GetProcessHeap(), 0, desclen);
375 if (!dataA->Module || !dataA->Description)
377 HeapFree(GetProcessHeap(), 0, dataA->Module);
378 HeapFree(GetProcessHeap(), 0, dataA->Description);
379 dataA->Module = dataA->Description = NULL;
383 WideCharToMultiByte(CP_ACP, 0, dataW->Module, -1, dataA->Module, modlen, NULL, NULL);
384 WideCharToMultiByte(CP_ACP, 0, dataW->Description, -1, dataA->Description, desclen, NULL, NULL);
388 static void DSPROPERTY_descWto1(const DSPROPERTY_DIRECTSOUNDDEVICE_DESCRIPTION_W_DATA *dataW,
389 DSPROPERTY_DIRECTSOUNDDEVICE_DESCRIPTION_1_DATA *data1)
391 data1->DeviceId = dataW->DeviceId;
392 lstrcpynW(data1->ModuleW, dataW->Module, sizeof(data1->ModuleW)/sizeof(*data1->ModuleW));
393 lstrcpynW(data1->DescriptionW, dataW->Description, sizeof(data1->DescriptionW)/sizeof(*data1->DescriptionW));
394 WideCharToMultiByte(CP_ACP, 0, data1->DescriptionW, -1, data1->DescriptionA, sizeof(data1->DescriptionA)-1, NULL, NULL);
395 WideCharToMultiByte(CP_ACP, 0, data1->ModuleW, -1, data1->ModuleA, sizeof(data1->ModuleA)-1, NULL, NULL);
396 data1->DescriptionA[sizeof(data1->DescriptionA)-1] = 0;
397 data1->ModuleA[sizeof(data1->ModuleA)-1] = 0;
398 data1->Type = dataW->Type;
399 data1->DataFlow = dataW->DataFlow;
400 data1->WaveDeviceId = data1->Devnode = dataW->WaveDeviceId;
403 static BOOL CALLBACK DSPROPERTY_enumWtoA(DSPROPERTY_DIRECTSOUNDDEVICE_DESCRIPTION_W_DATA *descW, void *data)
405 DSPROPERTY_DIRECTSOUNDDEVICE_DESCRIPTION_A_DATA descA;
406 DSPROPERTY_DIRECTSOUNDDEVICE_ENUMERATE_A_DATA *ppd = data;
409 ret = DSPROPERTY_descWtoA(descW, &descA);
412 ret = ppd->Callback(&descA, ppd->Context);
413 HeapFree(GetProcessHeap(), 0, descA.Module);
414 HeapFree(GetProcessHeap(), 0, descA.Description);
418 static HRESULT DSPROPERTY_EnumerateA(
423 DSPROPERTY_DIRECTSOUNDDEVICE_ENUMERATE_A_DATA *ppd = pPropData;
424 DSPROPERTY_DIRECTSOUNDDEVICE_ENUMERATE_W_DATA data;
426 if (!ppd || !ppd->Callback)
428 WARN("Invalid ppd %p\n", ppd);
429 return E_PROP_ID_UNSUPPORTED;
432 data.Callback = DSPROPERTY_enumWtoA;
435 return DSPROPERTY_EnumerateW(&data, cbPropData, pcbReturned);
438 static BOOL CALLBACK DSPROPERTY_enumWto1(DSPROPERTY_DIRECTSOUNDDEVICE_DESCRIPTION_W_DATA *descW, void *data)
440 DSPROPERTY_DIRECTSOUNDDEVICE_DESCRIPTION_1_DATA desc1;
441 DSPROPERTY_DIRECTSOUNDDEVICE_ENUMERATE_1_DATA *ppd = data;
444 DSPROPERTY_descWto1(descW, &desc1);
445 ret = ppd->Callback(&desc1, ppd->Context);
449 static HRESULT DSPROPERTY_Enumerate1(
454 DSPROPERTY_DIRECTSOUNDDEVICE_ENUMERATE_1_DATA *ppd = pPropData;
455 DSPROPERTY_DIRECTSOUNDDEVICE_ENUMERATE_W_DATA data;
457 if (!ppd || !ppd->Callback)
459 WARN("Invalid ppd %p\n", ppd);
460 return E_PROP_ID_UNSUPPORTED;
463 data.Callback = DSPROPERTY_enumWto1;
466 return DSPROPERTY_EnumerateW(&data, cbPropData, pcbReturned);
469 static HRESULT DSPROPERTY_DescriptionA(
474 DSPROPERTY_DIRECTSOUNDDEVICE_DESCRIPTION_W_DATA data;
475 DSPROPERTY_DIRECTSOUNDDEVICE_DESCRIPTION_A_DATA *ppd = pPropData;
479 *pcbReturned = sizeof(*ppd);
483 data.DeviceId = ppd->DeviceId;
484 data.DataFlow = ppd->DataFlow;
485 hr = DSPROPERTY_DescriptionW(&data, sizeof(data), NULL);
488 if (!DSPROPERTY_descWtoA(&data, ppd))
490 HeapFree(GetProcessHeap(), 0, data.Module);
491 HeapFree(GetProcessHeap(), 0, data.Interface);
495 static HRESULT DSPROPERTY_Description1(
500 DSPROPERTY_DIRECTSOUNDDEVICE_DESCRIPTION_W_DATA data;
501 DSPROPERTY_DIRECTSOUNDDEVICE_DESCRIPTION_1_DATA *ppd = pPropData;
505 *pcbReturned = sizeof(*ppd);
509 data.DeviceId = ppd->DeviceId;
510 data.DataFlow = ppd->DataFlow;
511 hr = DSPROPERTY_DescriptionW(&data, sizeof(data), NULL);
514 DSPROPERTY_descWto1(&data, ppd);
515 HeapFree(GetProcessHeap(), 0, data.Module);
516 HeapFree(GetProcessHeap(), 0, data.Interface);
520 static HRESULT WINAPI IKsPrivatePropertySetImpl_Get(
521 LPKSPROPERTYSET iface,
524 LPVOID pInstanceData,
525 ULONG cbInstanceData,
530 IKsPrivatePropertySetImpl *This = impl_from_IKsPropertySet(iface);
531 TRACE("(iface=%p,guidPropSet=%s,dwPropID=%d,pInstanceData=%p,cbInstanceData=%d,pPropData=%p,cbPropData=%d,pcbReturned=%p)\n",
532 This,debugstr_guid(guidPropSet),dwPropID,pInstanceData,cbInstanceData,pPropData,cbPropData,pcbReturned);
534 if ( IsEqualGUID( &DSPROPSETID_DirectSoundDevice, guidPropSet) ) {
536 case DSPROPERTY_DIRECTSOUNDDEVICE_WAVEDEVICEMAPPING_A:
537 return DSPROPERTY_WaveDeviceMappingA(pPropData,cbPropData,pcbReturned);
538 case DSPROPERTY_DIRECTSOUNDDEVICE_DESCRIPTION_1:
539 return DSPROPERTY_Description1(pPropData,cbPropData,pcbReturned);
540 case DSPROPERTY_DIRECTSOUNDDEVICE_ENUMERATE_1:
541 return DSPROPERTY_Enumerate1(pPropData,cbPropData,pcbReturned);
542 case DSPROPERTY_DIRECTSOUNDDEVICE_WAVEDEVICEMAPPING_W:
543 return DSPROPERTY_WaveDeviceMappingW(pPropData,cbPropData,pcbReturned);
544 case DSPROPERTY_DIRECTSOUNDDEVICE_DESCRIPTION_A:
545 return DSPROPERTY_DescriptionA(pPropData,cbPropData,pcbReturned);
546 case DSPROPERTY_DIRECTSOUNDDEVICE_DESCRIPTION_W:
547 return DSPROPERTY_DescriptionW(pPropData,cbPropData,pcbReturned);
548 case DSPROPERTY_DIRECTSOUNDDEVICE_ENUMERATE_A:
549 return DSPROPERTY_EnumerateA(pPropData,cbPropData,pcbReturned);
550 case DSPROPERTY_DIRECTSOUNDDEVICE_ENUMERATE_W:
551 return DSPROPERTY_EnumerateW(pPropData,cbPropData,pcbReturned);
553 FIXME("unsupported ID: %d\n",dwPropID);
557 FIXME("unsupported property: %s\n",debugstr_guid(guidPropSet));
562 FIXME("*pcbReturned=%d\n", *pcbReturned);
565 return E_PROP_ID_UNSUPPORTED;
568 static HRESULT WINAPI IKsPrivatePropertySetImpl_Set(
569 LPKSPROPERTYSET iface,
572 LPVOID pInstanceData,
573 ULONG cbInstanceData,
577 IKsPrivatePropertySetImpl *This = impl_from_IKsPropertySet(iface);
579 FIXME("(%p,%s,%d,%p,%d,%p,%d), stub!\n",This,debugstr_guid(guidPropSet),dwPropID,pInstanceData,cbInstanceData,pPropData,cbPropData);
580 return E_PROP_ID_UNSUPPORTED;
583 static HRESULT WINAPI IKsPrivatePropertySetImpl_QuerySupport(
584 LPKSPROPERTYSET iface,
587 PULONG pTypeSupport )
589 IKsPrivatePropertySetImpl *This = impl_from_IKsPropertySet(iface);
590 TRACE("(%p,%s,%d,%p)\n",This,debugstr_guid(guidPropSet),dwPropID,pTypeSupport);
592 if ( IsEqualGUID( &DSPROPSETID_DirectSoundDevice, guidPropSet) ) {
594 case DSPROPERTY_DIRECTSOUNDDEVICE_WAVEDEVICEMAPPING_A:
595 *pTypeSupport = KSPROPERTY_SUPPORT_GET;
597 case DSPROPERTY_DIRECTSOUNDDEVICE_DESCRIPTION_1:
598 *pTypeSupport = KSPROPERTY_SUPPORT_GET;
600 case DSPROPERTY_DIRECTSOUNDDEVICE_ENUMERATE_1:
601 *pTypeSupport = KSPROPERTY_SUPPORT_GET;
603 case DSPROPERTY_DIRECTSOUNDDEVICE_WAVEDEVICEMAPPING_W:
604 *pTypeSupport = KSPROPERTY_SUPPORT_GET;
606 case DSPROPERTY_DIRECTSOUNDDEVICE_DESCRIPTION_A:
607 *pTypeSupport = KSPROPERTY_SUPPORT_GET;
609 case DSPROPERTY_DIRECTSOUNDDEVICE_DESCRIPTION_W:
610 *pTypeSupport = KSPROPERTY_SUPPORT_GET;
612 case DSPROPERTY_DIRECTSOUNDDEVICE_ENUMERATE_A:
613 *pTypeSupport = KSPROPERTY_SUPPORT_GET;
615 case DSPROPERTY_DIRECTSOUNDDEVICE_ENUMERATE_W:
616 *pTypeSupport = KSPROPERTY_SUPPORT_GET;
619 FIXME("unsupported ID: %d\n",dwPropID);
623 FIXME("unsupported property: %s\n",debugstr_guid(guidPropSet));
626 return E_PROP_ID_UNSUPPORTED;
629 static const IKsPropertySetVtbl ikspvt = {
630 IKsPrivatePropertySetImpl_QueryInterface,
631 IKsPrivatePropertySetImpl_AddRef,
632 IKsPrivatePropertySetImpl_Release,
633 IKsPrivatePropertySetImpl_Get,
634 IKsPrivatePropertySetImpl_Set,
635 IKsPrivatePropertySetImpl_QuerySupport
638 HRESULT IKsPrivatePropertySetImpl_Create(
640 IKsPropertySet **piks)
642 IKsPrivatePropertySetImpl *iks;
643 TRACE("(%s, %p)\n", debugstr_guid(riid), piks);
645 if (!IsEqualIID(riid, &IID_IUnknown) &&
646 !IsEqualIID(riid, &IID_IKsPropertySet)) {
648 return E_NOINTERFACE;
651 iks = HeapAlloc(GetProcessHeap(),0,sizeof(*iks));
653 iks->IKsPropertySet_iface.lpVtbl = &ikspvt;
655 *piks = &iks->IKsPropertySet_iface;