How to create a controller for "configure spectral measurements" window

[Jagadeesh_1990]

Hello Everyone,

Problem: We know that to change "Window" for spectral measurements. We need to double click on it , configure spectral measurement window pops up and select whichever window (eg., None, Hanning, Hamming, Blackman Harris etc) we like to view. Instead of double clicking in block diagram, I want to provide users a window controller in front panel in the form of list, so that they can select the appropriate window type as needed.

I am figuring out how to solve it. Can someone share their knowledge ont his issue? 

[Zwired1 · Accepted solution]

Right click on spectral measurements and "convert to subVI".  Right click on yellow VI that shows up and click on open front panel.  Replace the "Spectrum Window" constant with an enum control (0=None, 1=Hanning, 2=Hamming, etc).

[Jagadeesh_1990]

Thank you Zwired1

Your answer works. But I want my input in main vi and not in subVI. There should someway to do it. Can you share your thoughts

I am a newbie to labview and in learning phase.

[Zwired1 · Accepted solution]

On the front panel of the subVI, add the newly-created ENUM control to the connector pane by left clicking on an open rectangle on the connector pane icon in the upper right corner and then on the ENUM control.  Save the subVI.  If you show context help and mouse over the subVI icon in the main VI you should see the ENUM's name as a connection to the subVI, if you've done it correctly.   Right click on the node on the subVI icon in the main vi and say "create control". 

[Jagadeesh_1990]

This worked. Thank you