C / C++ / MFC

<br />
Opening LPT1... OK<br />
Querying LPT1 Status...<br />
Status: 80<br />
Setting EPP Mode...<br />
Querying LPT1 Mode...<br />
Read Status: 40<br />
Write Status: 40<br />
Sending data...<br />
Error: Incorrect function.<br />
<br />
Sent 0 values<br />
Sending complete...<br />

<br />
printf("Opening LPT1...\t");<br />
hParPort = CreateFile("LPT1", GENERIC_READ | GENERIC_WRITE, 0, NULL, OPEN_EXISTING, 0, NULL);<br />
<br />
printf("Querying LPT1 Status...\n");<br />
PAR_QUERY_INFORMATION ParInfo;<br />
DeviceIoControl(hParPort, IOCTL_PAR_QUERY_INFORMATION, NULL, 0, &ParInfo, sizeof(ParInfo), &ret, NULL);<br />
printf("Status: %x \n", ParInfo.Status);<br />
<br />
printf("Setting EPP Mode...\n");<br />
PARCLASS_NEGOTIATION_MASK parMode;<br />
PARCLASS_NEGOTIATION_MASK parModeBack;<br />
parMode.usReadMask = EPP_ANY;<br />
parMode.usWriteMask = EPP_ANY;<br />
DeviceIoControl(hParPort, IOCTL_IEEE1284_NEGOTIATE, &parMode, sizeof(parMode), &parModeBack, sizeof(parModeBack), &ret, NULL);<br />
printf("Read Status: %x \n", parModeBack.usReadMask);<br />
printf("Write Status: %x \n", parModeBack.usWriteMask);<br />
<br />
printf("Sending data...\n");<br />
<br />
if(!WriteFile(hParPort, data, 1, &ret, NULL))<br />
{<br />
    //--- Print FormatMessage(GetLastError()) ---<br />
}<br />
printf("Sent %d values \n", ret);<br />
printf("Sending complete...\n");<br />
CloseHandle(hParPort)<br />

DWORD CVolumeOutMaster::GetCurrentVolume()
{
	if ( !m_bAvailable )
		return BAD_DWORD;
	MIXERCONTROLDETAILS_UNSIGNED* aDetails =  (MIXERCONTROLDETAILS_UNSIGNED*)malloc(m_nChannelCount*sizeof(MIXERCONTROLDETAILS_UNSIGNED));
	if ( !aDetails )
		return BAD_DWORD;
	MIXERCONTROLDETAILS ControlDetails;
	memset( &ControlDetails, 0, sizeof(MIXERCONTROLDETAILS) );
	ControlDetails.cbStruct = sizeof(MIXERCONTROLDETAILS);
	ControlDetails.dwControlID = m_dwVolumeControlID;
	ControlDetails.cChannels = m_nChannelCount;
	ControlDetails.cMultipleItems = 0;
	ControlDetails.cbDetails = sizeof(MIXERCONTROLDETAILS_UNSIGNED);
	ControlDetails.paDetails = &aDetails[0];
	MMRESULT mmResult = mixerGetControlDetails( (HMIXEROBJ)m_dwMixerHandle, &ControlDetails, MIXER_GETCONTROLDETAILSF_VALUE );
	DWORD dw = aDetails[0].dwValue;
	free( aDetails );
	if ( mmResult != MMSYSERR_NOERROR )
	{
		TRACE(".MasterOutputVolume: FAILURE: Could not get volume. mmResult=%d\n", mmResult );
		return BAD_DWORD;
	}
	return dw;
}

status = Success;
// CException* pExcToDelete = NULL;
try {
  if (pArchive->IsStoring())
     (*pArchive) << m_tmLogin;
  else
     (*pArchive) >> m_tmLogin;
}
catch (CException* pExc) {
  // pExcToDelete = pExc;
  // delete pExcToDelete;  <-- [a]
  status = Error;
}
// delete pExcToDelete;  <-- [b]
return (status);