[DllImport("phxdlx64.dll")] public static extern Phx.etStat PDL_BufferParameterSet(uint hBuffer, etPdlParam eParam, ref uint dwParamValue);
[DllImport("phxdlx64.dll")] public unsafe static extern Phx.etStat PDL_BufferParameterSet(uint hBuffer, etPdlParam eParam, int *nParamvalue);
[DllImport("phxdlx64.dll")] public static extern Phx.etStat PDL_DisplayParameterSet(uint hDisplay, etPdlParam eParam, ref uint dwParamValue);