PLUS+1 User Forum

PLUS+1 Hardware => Displays => Topic started by: Loky1983 on December 05, 2013, 10:02:23 PM

Title: Visible in screen editor
Post by: Loky1983 on December 05, 2013, 10:02:23 PM

Hi,
I am just wandering what does the visible option when you check the settings of
either texts or images

Thanks

Title: Re: Visible in screen editor
Post by: spittet on December 06, 2013, 03:50:14 PM

According to the User Manual, Visible is an OUTPUT from the display screen. Here's the text from the user manual :

Outputs a True Boolean signal when a library item becomes visible.
To be visible, a library item must have a True Screen Area, a True Enable property, and a Priority that is higher than or equal
to the Priority of any other library item in the same Screen Area.
(You must connect a wire to the Data bus to be able to output this signal.)

I'm not sure if this is useful. I've never used it and I'm not sure I can see a utility to this feature. To me, it is visible when I see it on the real screen when I'm testing my display program. If I do not see it, either it's not enabled or either there is another thing that is enabled and higher priority that is in front of it.

Sam

Title: Re: Visible in screen editor
Post by: Loky1983 on December 06, 2013, 05:00:08 PM

That also what i thought that it wasn't that useful
cause as you said you enable it or not...

But anyway Thanks

Title: Re: Visible in screen editor
Post by: Brian Bandura on February 07, 2014, 12:50:50 AM

I use the "Visible" attribute quite a bit in my terminal programming.
It works for a broad range of things depending on if you wish to display an object on a screen.

An example. When a button is pressed to do a function, a variable is set which will display a graphic with a warning. Sort of an "Are you sure?' thing.
We also have various options on different machines. If that option is turned on, some graphics and/or texts will be displayed, others not.

Another thing is a text list driven by a fault process, when a fault appears I have a pink graphic as well as a text list appear with the fault or faults displayed, otherwise it is a time display.

Everything has a purpose if you choose to use it or not is up to you.

Regards,
Brian Bandura

Title: Re: Visible in screen editor
Post by: Marbek_Elektronik on March 08, 2014, 08:40:27 AM

is the attribute "visible" and "enable" compiled like the following logic:

You see the text if "visible" AND "enable" is set ?

I think, you could use maximum two variables to activate the text.

This is wrong, what I have wrote 2014.
Enable is the only input to see the text.