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;
}
