if (m_trimEvent->type() == ApiTraceEvent::Call) {
ApiTraceCall *call = static_cast<ApiTraceCall*>(m_trimEvent);
trimIndex = call->index();
if (m_trimEvent->type() == ApiTraceEvent::Call) {
ApiTraceCall *call = static_cast<ApiTraceCall*>(m_trimEvent);
trimIndex = call->index();