Save sub-vi's (possibly closed) front panel image to a file

[tpascaru]

Hello,

I would like to dump a file of a sub-vi's front panel when that sub-vi completes execution. I was thinking of using the  "Front Panel:Get Image Method", however the target sub vi's front panel might not be opened. I am looking through the help file, and it says

"If you do not want to display the front panel but want the image to reflect value changes, create a Property Node from any front panel terminal on the block diagram of the VI for which you want to create a front panel image."

I'm not quite sure I understand what that means. Can anyone provide an example?

I am running LV 8.2 for the record.

Thanks,

-Ted

[Karunya_R]

Hi Ted,

 "If you do not want to display the front panel but want the image to reflect value changes, create a Property Node from any front panel terminal on the block diagram of the VI for which you want to create a front panel image."

What that means is to create a property node for something (anything) in your Sub-VI.  

I have attached an example for you with a dummy property node. And the front panel of the Sub-VI gets updated on the Main-VI. Try removing the property node in the Sub-VI and you will notice that even though the values are correct in the main-vi, the image of the sub-vi doesn't get updated. 

Hope this helps!

[Ben]

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Karunya_R wrote:

Hi Ted,

 "If you do not want to display the front panel but want the image to reflect value changes, create a Property Node from any front panel terminal on the block diagram of the VI for which you want to create a front panel image."

What that means is to create a property node for something (anything) in your Sub-VI.  

I have attached an example for you with a dummy property node. And the front panel of the Sub-VI gets updated on the Main-VI. Try removing the property node in the Sub-VI and you will notice that even though the values are correct in the main-vi, the image of the sub-vi doesn't get updated. 

Hope this helps!

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"anything" translates as any FP object I hope. There are property nodes avaiable for the VI itself that will not trigger a update of the FP.

Just trying to keep the record straight,

Ben