Release 2019.12.09.01

(Autonomous Robot Control Software)
Make robots with the easiest robot programming software. Experience user-friendly features that make any robot easy to program.

Change Release Notes

  • Behavior controls raise OnClosing for plugins/controls when application exiting
  • Fix for mobile interface sizing
  • resized some controls to better optimize screen realestate
  • movement panels use color dimming on buttons rather than setting colors explicitly
  • keep original themed bg color of the script start/stop button
  • Ensure new controls are added to a virtual desktop by verifying the selected index id
  • Display controls in the top menu controls tab
  • Additional GUI rendering performance improvements from last update
  • Top menu can be themed in Options -> Preferences -> Theme
  • Fixes to a few controls that didn't render correctly (sound servo, etc)
  • More visible checkboxes
  • Theme editor displays example during configuration
  • updated json library
  • Disabled gpu usage on cef rendering
  • Theme colors can be edited Options -> Preferences -> Theme
  • Uses the stable plugin interface (all plug-ins must be updated to work with this release moving forward

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Authors of Plugins to Update The pnlControl has been removed. This means you'll have to edit the designer.cs file for your forms and remove the pnlControl references to use this. For example...

Change: this.pnlControl.Controls.Add(something); To: this.Controls.Add(something);

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Looks good nomad. I recommend updating your version of ARC. It appears to be outdated.


hi dj

i have the latest version downloaded.2019.12.07.00


Since the new release, I cannot set the size of my Mobile Interface. It used to be 800x480px but now is insists on making it 1308x788px. If I modify my background image to that size, it complains it's too large. What is happening here?


Even the help screens show the Mobile Interface size set to 800x480px. But the new release s/w will not save any size changes I make.

#6   — Edited

I keep moving your posts to the respective threads. This belongs in the topic of the release.

ensure you have updated to the most recent release. There have not been any changes to the mobile interface control in a few years, so everything is the same.

im unable to reproduce this issue you’re experiencing. To change the resolution of an app screen, select the configuration button on the mobile interface builder. There will be options for width and height on the right. Change those for the render dimensions.

ensure you have saved the project to the cloud. Then, update the project in your mobile device. The app won’t appear on the device without those two steps

#7   — Edited

Sorry but when I change the width and height as required, they are not saved. Try this please. Change the dimensions, click save, then save your project, or exit ARC and re-open your project. The dimensions will not have been saved. I have gone back to using release 19.05.08 where this works perfectly.


It's only when saving for you? to the cloud or to a local drive?


The Mobile App dimensions are not saved when saving on my laptop or to the EZ-cloud. Release 19.05.08 works perfectly.

#10   — Edited

Okay - I'll take a look when I get home tonight and update the beta for ya right away when I see what's going on  :)


No problem - I see what it is. I'll get a build for you in a few hours


I re-used this thread and updated the details for the release. Thanks for everyone's help to get it rock'n over the weekend!

#13   — Edited

@DJ: This version is not firing the Windows Form Event's:

private void MainForm_FormClosing(object sender, FormClosingEventArgs e) private void MainForm_FormClosed(object sender, FormClosedEventArgs e)

neither the base class methods:

protected override void OnFormClosing(FormClosingEventArgs e) protected override void OnFormClosed(FormClosedEventArgs e)

when you close ARC although is firing when you close the project.

If you want to test/debug:

I added a DebugToFile method to log the events to a file on User's desktop.


That's curious... I'll take a look!

#15   — Edited

Wow - it's never called Closing() on application exit... Check this out. All Application.OpenForms are raised with event OnClosing automatically if you close the application with Application.Exit(). But, to prompt the user if they should exit the application, you have to put a dialog prompt in OnClosing. So if you use Application.Exit() at the end of OnClosing(), the OnClosing() even is called again! The exit trace of .Net is severely flawed. The only way to overcome this is by never calling Application.Exit(), and instead closing the main form. And in the main form's OnClosing, loop through each child form and close it.

One would assume the main form would raise OnClosing() of it's child forms automatically when closing. But it doesn't. The only way all child forms raise OnClosing() is when Application.Exit() is called... Which you can't call, because it will again raise OnClosing()

I fixed it for next release - but boy that's an interesting .Net behavior. It has been this way since the very first version of ARC. Crazy!

#16   — Edited


It has been this way since the very first version of ARC.
Not really, I used this before to stop background threads and it worked perfectly with this version is not working and I don't have way to get the closed/quit notification so the background threads/task will be forever running, and ARC stays a zombie process.

I reinstalled the October version (non beta version) and is working again, so something new was introduced and the form closed event is gone.

Without this most of (my) existent plugins will stay on... without shutdown.

#17   — Edited


So if you use Application.Exit() at the end of OnClosing()
I don't think Application.Exit should be called on OnClosing, this event is a bubble you can cancel the quit using something like this:

protected override void OnFormClosing(FormClosingEventArgs e)
   var result = MessageBox.Show("Are you sure that you would like to quit?", "ARC Quit",

   e.Cancel = (result == DialogResult.No);


I re-used this thread for the release with the fix to OnClosing()


@DJ it works again ;)


Very nice. Everything seems to be working for me. Thanks for adding my suggestions. It makes all the difference.

#22   — Edited

I listen well! Making you all productive is my top priority. And Perry :D

#23   — Edited

LOL. As it has been, so shall it will be. And Perry too.


I can't tell if you are having fun at my expense.


Not the slightest. I respect your opinion about being able to select your preferred colors. Much like david, you've both requested that ability. So i made it happen :)


Perry, Your one of the good guys my friend. You're a talented builder and I respect that. Just trying to have a good time with a fellow builder. Sorry if it came across harsh.


OK, so a question. Are we good to go? able to download,install, and use?  Has that connection issue from that last release been addressed? it was one where I could not open ARC unless I connected to the internet first. Then, once opened,  had to disconnect from the internet to reconnect to the EZB.  Then all was fine after that. Obviously, Opening the builder without the internet is the preferred as it was with past releases.

#28   — Edited

This one (2019.12.09.01) shows stable on the download page. However just under it there is a ver 2019.12.09.02 that looks like it's still considered Bata.  I'd say yes, 2019.12.09.01 is good to go.

I'm able to open ARC just fine if disconnected from the internet.

I've never heard any preferences on if it's better to be connected or not when opening ARC. I can't think of any reason why you would need to be concerned. I've always been connected when I start up ARC. Am I missing something?


@Dave Thanks for the update. Yes, for some reason. with the last big update, I found out I could only open the ARC if the pc (my Win 10 tablet) was first coneected to the internet. I have never had this happen before with any of the pervious updates ever.  After the builde loads, I then disconnect from the internet and connect to the EZB and everything works fine. If i close the builder, I have to again reconnect to the internet to run the builder yet again.  Its very annoying of course, And yes Im in the default AP mode when this all happens.


i notest the ARC has no anthena in connections to look for your ezbv4?

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It's a dark icon with your theme


ah amazing its see the mouse arrow change in hand .cool

thank you


Nomad, you should probably lighten up your Content Base Color so you can see it. You're probably missing some other stuff.


hi dave

i have a check,thanksxD


Nomad, upgrade to the latest beta release 2019.12.11.00 because it will make those buttons lighter for you automatically. Also, the camera performance improvement alone is worth the upgrade



i allreddy did it.:p

#37   — Edited

Yes! +1 on the beta release 2019.12.11.00! I'm seeing the difference.

I haven't had this much fun with ARC in years!


its has bin a good few days.learn alot.

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