Scrollbar Corruption

I came across an odd situation in LV 2009 SP1.
I was trying to set my background color to the system "Panel & Object" color after setting some other VI properties to make this VI look like a system dialog box. Somewhere along the line while using the paint brush, a part of the vertical scrollbar was shortened and filled in with black.
Fortunately, I was able to recover my VI by copying and pasting my BD to a new VI. I wasn't able to recreate this defect.
But attached is the image, and also the VI. I completely cleaned all of my code and FP out of this VI to just show the basic issue with the scrollbar to allow anyone to poke around in it.
I'm just curious as to how the corruption occurred. Is there any other way to fix the problem besides copying and pasting to a new VI.
Attachments:
OddScrollbar.vi ‏5 KB
ScrollbarCorruption.png ‏20 KB

LV_Pro wrote:
You do find interesting and unique ways to break things. Did you close and reopen the offending vi to make sure it wasn't a weird artifact (something I have been called more than once!)?
Kewl, I can't even get the paintbrush to hover over the scroll bar, much less change the color!!
Yes. Close, reopen. Completely close out LabVIEW, restart. Save as older version and open in older version. Different PC. The artifact remains no matter what I do. Even when it first happened, I tried to Ctrl-Z undo the color changes and it remained.
I don't know exactly how I did it. I was just using the paint brush at the time to change the color. I have always had a hard time trying to change colors easily. It always seems like I have to paint something the current color first, then do a right click to pick the color. Sometimes the color picker appears and disappears quickly. I have just always found that changing colors takes just the right combination of mouse clicks and modifier keys, and a few more than seems like it should be necessary and never as smoothly as compared to something like MS Paint. That black bar just appeared during one of the mouse click struggles.
I don't know if the fact is has objects or not changes the behavior in any way. I originally had objects on the front panel. I just removed them to see if anything improved, and also to make as simple VI as possible that still shows the behavior. The VI properties were set to not show the scrollbar (since I had controls off offscreen to pass data into and out of this dialog box.). But scrollbars only disappear in run mode, not edit mode. It is almost like the underlying Windows object that defines the scrollbar was redefined so that its length at the side of the window is not as long as it should be to fill up the side of the window.

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This brings up a question I have - if this problem is a bug and was fixed in 8.5 and later, is there a way to apply bug fixes to earlier versions? Or do I have to pay for an upgrade to fix such bugs?
Solved!
Go to Solution.
Attachments:
RepaintTest_Bad.gif ‏27 KB
Test Repaint - From Bad VI, scrollbar and repaint problems.vi ‏7 KB
Test Repaint - From Blank VI, no problems.vi ‏5 KB

Seems something got corrupted with this VI. Copy things over to a fresh VI and things should be OK.
See also this recent report of a similar issue.
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<?xml version="1.0" encoding="utf-8"?>
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Thanks in Advance,
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1) Cross post: [http://www.coderanch.com/t/460744/Swing-AWT-SWT-JFace/java/Data-getting-corrupt-Jscrollpane-Solaris]
2) In the other posting you where asked to use the "Code tags" so the code is readable. Why do you think this forum is any different? Why should we have to ask you a second time to use the "Code tags"?
I don't use Soloaris so I can't help.

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