public static extern LumiStatus LumiCaptureEx(uint hHandle, byte[] pOutputImage, byte[] pTemplate, ref uint nTemplateLength, ref int nSpoof, LumiPreviewCallbackDelegate pCallbackFunc);
[DllImport(LUMI_API_DLL)]//new public static extern LumiStatus LumiSetLiveMode(uint hHandle, uint mode, LumiPreviewCallbackDelegate pCallbackFunc);