HRESULT CaptureManager::StopPreview()
{
HRESULT hr = S_OK;
if (m_pEngine == NULL)
{
return MF_E_NOT_INITIALIZED;
}
if (!m_bPreviewing)
{
return S_OK;
}
hr = m_pEngine->StopPreview();
if (FAILED(hr))
{
goto done;
}
WaitForResult();
if (m_fPowerRequestSet && m_hpwrRequest != INVALID_HANDLE_VALUE)
{
PowerClearRequest(m_hpwrRequest, PowerRequestExecutionRequired);
m_fPowerRequestSet = false;
}
done:
return hr;
}
/// <summary>
/// Delete the custom power plan.
/// </summary>
VOID PowerSchemes::ClearCustomPowerPlan()
{
if(!PowerClearRequest(hPowerRequest, PowerRequestSystemRequired))
{
//printf("PowerClearRequest failed\n");
}
CloseHandle(hPowerRequest);
*mySchemeGuid = GUID_MIN_POWER_SAVINGS;
ApplyPowerScheme(*mySchemeGuid);
/************************************************************************/
/* Second: Delete application power scheme */
/************************************************************************/
if(!DeleteScheme(GUID_POWER_AWARE_SMJ))
{
//printf("DeleteScheme failed\n");
}
}
