public void ForceFingerLift()
{
LumiSDKWrapper.LumiAcqStatusCallbackDelegate del = _form.AcquStatusCallback;
LumiSDKWrapper.LUMI_ACQ_STATUS nStatus = LumiSDKWrapper.LUMI_ACQ_STATUS.LUMI_ACQ_BUSY;
LumiSDKWrapper.LumiStatus rc = LumiSDKWrapper.LumiDetectFinger(_hHandle, ref nStatus, del);
if (rc != LumiSDKWrapper.LumiStatus.LUMI_STATUS_OK)
{
}
}