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 ITypeLib *pTypeLib; 33 HRESULT hr; 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 ITypeLib_Release(pTypeLib); 41 } 42 return hr; 43 } 44 45 HRESULT WINAPI BaseDispatch_Destroy(BaseDispatch *This) 46 { 47 if (This->pTypeInfo) 48 ITypeInfo_Release(This->pTypeInfo); 49 return S_OK; 50 } 51 52 HRESULT WINAPI BaseDispatchImpl_GetIDsOfNames(BaseDispatch *This, REFIID riid, OLECHAR **rgszNames, UINT cNames, LCID lcid, DISPID *rgdispid) 53 { 54 if (This->pTypeInfo) 55 return ITypeInfo_GetIDsOfNames(This->pTypeInfo, rgszNames, cNames, rgdispid); 56 return E_NOTIMPL; 57 } 58 59 HRESULT WINAPI BaseDispatchImpl_GetTypeInfo(BaseDispatch *This, REFIID riid, UINT itinfo, LCID lcid, ITypeInfo **pptinfo) 60 { 61 if (This->pTypeInfo) 62 { 63 ITypeInfo_AddRef(This->pTypeInfo); 64 *pptinfo = This->pTypeInfo; 65 return S_OK; 66 } 67 return E_NOTIMPL; 68 } 69 70 HRESULT WINAPI BaseDispatchImpl_GetTypeInfoCount(BaseDispatch *This, UINT *pctinfo) 71 { 72 if (This->pTypeInfo) 73 *pctinfo = 1; 74 else 75 *pctinfo = 0; 76 return S_OK; 77 } 78