static HRESULT WINAPI IMediaPosition_fnCanSeekBackward(IMediaPosition* iface,LONG* pCanSeek) { CFilterGraph_THIS(iface,mediaposition); HRESULT hr = E_NOTIMPL; HRESULT hrFilter; DWORD n; TRACE("(%p)->()\n",This); EnterCriticalSection( &This->m_csFilters ); for ( n = 0; n < This->m_cActiveFilters; n++ ) { if ( This->m_pActiveFilters[n].pPosition != NULL ) { hrFilter = IMediaPosition_CanSeekBackward( This->m_pActiveFilters[n].pPosition, pCanSeek ); if ( hr == E_NOTIMPL ) { hr = hrFilter; } else if ( hrFilter != E_NOTIMPL ) { if ( SUCCEEDED(hr) ) hr = hrFilter; } } } LeaveCriticalSection( &This->m_csFilters ); return hr; }
static HRESULT WINAPI MediaPositionPassThru_CanSeekBackward(IMediaPosition *iface, LONG *pCanSeekBackward) { PassThruImpl *This = impl_from_IMediaPosition(iface); IMediaPosition *pos; HRESULT hr; TRACE("(%p)\n", pCanSeekBackward); hr = get_connected(This, &IID_IMediaPosition, (LPVOID*)&pos); if (SUCCEEDED(hr)) { hr = IMediaPosition_CanSeekBackward(pos, pCanSeekBackward); IMediaPosition_Release(pos); } else return E_NOTIMPL; return hr; }