private void OpenSnap()
{
System.Diagnostics.Debug.Assert(m_Camera.GetHandle() != IntPtr.Zero);
HVSTATUS status = USBCameraAPI.HVOpenSnap(m_Camera.GetHandle(), snapCallback, this.Handle);
USBCameraAPI.HV_VERIFY(status);
if (USBCameraAPI.HV_SUCCESS(status))
{
m_bIsOpen = true;
}
}