System tag write blocking

Ignition
1

I have a container with 4 objects in it and I want to control visibility on the container based on if the mouse is over the container or not. I created a custom property called HighlightVis for the coordinate container.
I created two event scripts, one based on onMouseOver and the other based on onMouseOut. I then assigned a script for each one with MouseOver writing a true value to HighlightVis and MouseOut writing a false value to HighlightVis. It does not seem to be working.

Here is what I have for the onMouseOut script:
system.tag.writeBlocking(self.custom.HighlightVis, “false”)
Here is the onMouseOver script:
system.tag.writeBlocking(self.custom.HighlightVis, “true”)

What am I missing?

2

Couple things.

  1. writeBlocking expects array/list arguments
  2. you should not use blocking calls like this from a UI thread because it will freeze the UI while it executes.
3

Thanks. So how would I go about getting this done?

4

Ah, is this Perspective or Vision?

5

writeBlocking is for writing to tags… the first argument would be a list of tag paths.

It seems like you just need to do this in your scripts:

self.custom.HighlightVis = 0
6

perspective. will try that simple line as see if it works.

7

Hi, @Kevin.Herron,
how do we block write with custom property values like how we do it on tags?

8

There’s no need, the assignment is blocking and should should take effect immediately.

Is there something you are seeing that makes you think otherwise?

9

Ok,
oh I was thinking like let say I have (bool)
value1, value2, value3, value4 in my custom properties
and when I press a button,
I want to write true to value1, value2, value3, value4
but if something happens let say error when writing on value2 than don’t write to all of them…?