8f7aa058b174415fbcad01dac77cba930bd4ad4f
[reactos.git] / reactos / lib / 3rdparty / strmbase / dispatch.c
1 /*
2 * Generic Implementation of IDispatch for strmbase classes
3 *
4 * Copyright 2012 Aric Stewart, CodeWeavers
5 *
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.
10 *
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.
15 *
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
19 */
20
21 #define COBJMACROS
22
23 #include "dshow.h"
24 #include "wine/unicode.h"
25 #include "wine/strmbase.h"
26 #include "uuids.h"
27 #include "vfwmsgs.h"
28 #include <assert.h>
29
30 HRESULT WINAPI BaseDispatch_Init(BaseDispatch *This, REFIID riid)
31 {
32 HRESULT hr = E_FAIL;
33 ITypeLib *pTypeLib;
34
35 This->pTypeInfo = NULL;
36 hr = LoadRegTypeLib(&LIBID_QuartzTypeLib, 1, 0, LOCALE_SYSTEM_DEFAULT, &pTypeLib);
37 if (SUCCEEDED(hr))
38 {
39 hr = ITypeLib_GetTypeInfoOfGuid(pTypeLib, riid, &This->pTypeInfo);
40
41 if (pTypeLib)
42 ITypeLib_Release(pTypeLib);
43 }
44 return hr;
45 }
46
47 HRESULT WINAPI BaseDispatch_Destroy(BaseDispatch *This)
48 {
49 if (This->pTypeInfo)
50 ITypeInfo_Release(This->pTypeInfo);
51 return S_OK;
52 }
53
54 HRESULT WINAPI BaseDispatchImpl_GetIDsOfNames(BaseDispatch *This, REFIID riid, OLECHAR **rgszNames, UINT cNames, LCID lcid, DISPID *rgdispid)
55 {
56 if (This->pTypeInfo)
57 return ITypeInfo_GetIDsOfNames(This->pTypeInfo, rgszNames, cNames, rgdispid);
58 return E_NOTIMPL;
59 }
60
61 HRESULT WINAPI BaseDispatchImpl_GetTypeInfo(BaseDispatch *This, REFIID riid, UINT itinfo, LCID lcid, ITypeInfo **pptinfo)
62 {
63 if (This->pTypeInfo)
64 {
65 ITypeInfo_AddRef(This->pTypeInfo);
66 *pptinfo = This->pTypeInfo;
67 return S_OK;
68 }
69 return E_NOTIMPL;
70 }
71
72 HRESULT WINAPI BaseDispatchImpl_GetTypeInfoCount(BaseDispatch *This, UINT *pctinfo)
73 {
74 if (This->pTypeInfo)
75 *pctinfo = 1;
76 else
77 *pctinfo = 0;
78 return S_OK;
79 }