How do you change the capture dimensions in the Get Panel Image VI

My objective is to capture the front panel image to a JPEG file. I want to be able to alter the dimensions of Front Panel Image so I can exclude certain areas of the front panel. I am using the GET PANEL IMAGE.VI and the WRITE JPEG FILE.VI. I have tried using a Cluster structure from the bounds property of the GET PANEL IMAGE.VI to feed into the "rect" property of the WRITE JPEG FILE.vi however as soon as I alter the dimensions from the original dimensions it fails to save the panel image to file. Is this actually possible, or does LabVIEW restrict users from altering the panel capture dimensions? Or is this a known bug in LabVIEW v6.0?

Hi,
Here is a zip file containing two VIs.
'Change Control Value.vi' when run will load the VI 'Demo.vi'. It will alter its size and the run demo.vi.
On the front panel or demo.vi, press the Update button and the image will be written to c:\temp.
All a bit crude but the mechanism works in labview 5.1.1. (Unfortunately I haven't got version 6.0.2 installed yet.)
Regards
Ray.
Regards
Ray Farmer
Attachments:
demo.zip ‏33 KB

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