.h to .d advice needed

[Emp]

let me retype that:

 //from header file
/**********************************
*** NI-DAQmx Error Codes
 *********************************************************/
//C     #define DAQmxSuccess                                  (0)
//C     #define DAQmxFailed(error)                           ((error)<0)
// Error and Warning Codes
//C     #define DAQmxErrorCOCannotKeepUpInHWTimedSinglePoint 
(-209805)
//C     #define DAQmxErrorWaitForNextSampClkDetected3OrMoreSampClks 
(-209803)