C / C++ / MFC

CPoint point;
GetCursorPos(&point);
this->ScreenToClient(&point);
CRect  rect;
rect.top = point.y;
rect.left = point.x;
rect.right = rect.left + 200;
rect.bottom = rect.top  + 300;

CComboBox* pComboBox = new CComboBox();
pComboBox->Create(WS_VISIBLE, rect, this, NULL);
pComboBox->ShowWindow(SW_SHOW);

CDeviceInfoArray  arrDeviceInfo;
          ...

    for(int i = 0; i < arrDeviceInfo.GetCount(); ++i)
    {
        CString  strDevice;
        strDevice.Format("%d", arrDeviceInfo[i]);

        pComboBox->AddString(strDevice);
    }

Iain Wiseman wrote:

and found xerces-c was not able to access the file for reading in the same process.

m_Handle = CreateFile(
    TEXT(inFullyQualifiedPath.c_str()),
    GENERIC_ALL,
    0,
    NULL,
    OPEN_EXISTING,
    NULL,
    NULL);

    m_ConfigFileParser = new xercesc::XercesDOMParser;
    m_ConfigFileParser->parse(m_Filename.c_str());

GENERIC_READ and FILE_SHARE_READ | FILE_SHARE_WRITE 

Iain Wiseman wrote:

FILE_SHARE_READ | FILE_SHARE_WRITE

Iain Wiseman wrote:

I do not have control over the opening of the file as this is done within the Xerces library.

#define S1  (1 << 0)
#define S2  (1 << 1)

unsigned char sensorFlags = 0;
int counter = 0;

/* interrupt handler for S1 */
void s1_isr(void)
{
 if(sensorFlags & S2)
 {
    /* Exiting, decrement counter */
    --counter;
    /* clear S2 flag */
    sensorFlags &= ~S2;
    /* Get timestamp, store it, transmit to remote host
      this will depend a lot on your hardware */
 }
 else if(sensorFlags & S1)
 {
    /* ERROR same sensor tripped twice, handle as necessary */
 }
 else
 {
    /* Entering, set S1 flag */
    sensorFlags |= S1;
 }

  /* clear interrupt flag if necessary */
}

/*interrupt handler for S2 */
void s2_isr(void)
{
 if(sensorFlags & S1)
 {
    /* Entering, increment counter */
    ++counter;
    /* clear S1 flag */
    sensorFlags &= ~S1;
    /* Get timestamp, store it, transmit to remote host
      this will depend a lot on your hardware */
 }
 else if(sensorFlags & S2)
 {
    /* ERROR same sensor tripped twice, handle as necessary */
 }
 else
 {
    /* Exiting, set S2 flag */
    sensorFlags |= S2;
 }

 /* clear interrupt flag if necessary */
}