How to apply Analysis lib. FFT function on a wfm captured from NIScope?

[Vel]

I have captured a sine wave from NI Scope in arrayX (time samples) and arrayY (voltage samples). I need to apply FFT function of Labwindows Analysis library on that captured wfm. But this FFT function parameters needs to be real[ ] and Imaginary[ ] (Polar coord) it seems. I dont know how to my wfm waveform sample in this function.

After applying FFT, I have to plot the resultant waveform also in the plot. Any code snippet or suggestion is highly appreciated

[jr_2005]

Just put all the imaginary values to 0.0 and see if that works OK for you.

JR