private void OnThreadCapture()
{
bool bContinue = true;
using (mydcamwait = new MyDcamWait(ref mydcam))
{
while (bContinue)
{
DCAMWAIT eventmask = DCAMWAIT.CAPEVENT.FRAMEREADY | DCAMWAIT.CAPEVENT.STOPPED;
DCAMWAIT eventhappened = DCAMWAIT.NONE;
if (mydcamwait.start(eventmask, ref eventhappened))
{
if (eventhappened & DCAMWAIT.CAPEVENT.FRAMEREADY)
{
int iNewestFrame = 0;
int iFrameCount = 0;
if (mydcam.cap_transferinfo(ref iNewestFrame, ref iFrameCount))
{
MyUpdateImage(iNewestFrame);
}
}
if (eventhappened & DCAMWAIT.CAPEVENT.STOPPED)
{
bContinue = false;
}
}
else
{
if (mydcamwait.m_lasterr == DCAMERR.TIMEOUT)
{
// nothing to do
}
else
if (mydcamwait.m_lasterr == DCAMERR.ABORT)
{
bContinue = false;
}
}
}
}
}
public bool start(DCAMWAIT eventmask, ref DCAMWAIT eventhappened)
{
if (m_hwait == IntPtr.Zero)
{
m_lasterr = DCAMERR.INVALIDWAITHANDLE;
}
else
{
DCAMWAIT_START param = new DCAMWAIT_START(eventmask);
param.timeout = m_timeout;
m_lasterr = dcamwait.start(m_hwait, ref param);
if (!m_lasterr.failed())
{
eventhappened = new DCAMWAIT(param.eventhappened);
}
}
return(!m_lasterr.failed());
}