picture control mouse property

[Garvacious]

In LV 8.5 I notice that if you reinitialize your picture control to default value (using pop-up menu) the mouse position property no longer works, it will always return 0,0 no matter where the mouse is in the control.  You must destroy and re-create your picture control to fix it at that point.

Maybe this has been fixed in later versions of LV but I have not seen any documentation of this.

[Charlie_P]

Good Afternoon Garvacious,

When you say the pop-up menu, I assume you mean the menu that appears if you right-click on the control.

I just tried this in LabVIEW 8.6.1.  My mouse cursor position reads 0,0 when the mouse is over the control and -1,-1 when the mouse is not over the control.  This is a bug.  I have filed the appropriate internal documentation (Corrective Action Request #167102) so that R&D is aware of the issue.

Thank you for letting us know about this behavior.  I am sorry for any inconveniencce this bug has caused you.

[Snamprogetti]

I'm using LV 2009 on Windows XP and it still hasn't been fixed; i get -2147483648, -2147483648 both inside and outside the control. Was it fixed with 2010?

[Charlie_P]

Hello Snamprogetti,

As of today (LV 2010 SP1), a fix has not yet been implemented.

[CMoncsko]

It is also still broken in LabView 2014 SP1. The only fix is to delete the 2D Picture object and make a new one (copy and paste the control/indicator does not fix it)

[wiebe@CARYA · Accepted solution]

In LV2020, you get -2147483648, -2147483648. So not fixed.

There is a fix! 

Setting the zoom factor with the Zoom Factor property resets the behavior. The value doesn't need to change, so this works:

Haven't tested this in older versions, but works wonders in LV2020.

[wiebe@CARYA]

Fixes the problem in LV13 as well.

Just to make sure, this does not fix the bug! It is a workaround to recover from the bug. It's easier than replacing the control and reapplying all properties and cosmetic changes.