Custom slider background

[shuttlefan]

I inherited a vi that as the following indicator.   I'm able to update the min/max range  (as you can see from the value).  However, the background does not update.  It appears to be an image and thus can't adjusted.  

I've been trying to find a way to update the background but not coming up with anything.    

Any ideas how this was done?    

person that did it is no longer around for me to ask.  

[santo_13]

Please share this control as ctl file or part of a VI

[shuttlefan]

attached.  Thanks!

[GerdW · Accepted solution]

Hi shuttlefan,

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@shuttlefan wrote:

It appears to be an image and thus can't adjusted.  

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Yes, it's an image.

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@shuttlefan wrote:

I've been trying to find a way to update the background but not coming up with anything.

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• Replace the whole indicator by a 2DPicture indicator and draw anything on your own using the picture functions…
• Remove the background image and make the slider background transparent. Place a 2DPicture behind that slider and only draw the blue/brown areas…

[shuttlefan]

Thanks!  Will give it a try.