I tried to transfer TomMcQuilian's "Video 9 - Abstract Messages" to the small test program attached" I deleted the previous project because it was too buggy. The attached program (AF Test.zip) works fine, but without abstract messages. Sending message (change palette) from the Main Actor to the Nested Actor (image processing) and back. Here is the updated version with abstract messages (AF Test - AM.zip)I actually did it 😉Wow, a lot of work for two small messages to be sent back and forth. I don't even know if I should even start up my existing project with AF under these circumstances!Of course, when things go well, it's great and great to look after, but the way to get there is rocky and difficult. I would be happy if an AF specialist could take a look at the code. 😊 Ciao Peter

Hi Piet, I've had a quick look at the project, the code itself looks clean and tidy - That's always a good start! Looking through your code, I noticed you're storing just one enqueuer for your nested actor. If you're going to use AF I would recommend keeping an array/register of nested items, so you can launch more than one "Image Processor". It's worth the extra work now rather than in a couple of months time! Also, watch out for your VI execution modes! I noticed that a lot of your VIs are non-reentrant, the whole idea of AF is that it's concurrent. So make sure you change the reentrancy to Shared Clone Reentrant Execution, you don't want to inadvertently create bottlenecks! I usually create a simple VI that changes the reentrancy of VIs in a library (and also turns off debugging). < I just created this, it worked on your actor. You should handle the references better, but I'm sure you get the idea! edit: I'm opening the fp in this code so it gets brought into memory and changes are 'registered' for the save method Other than this, your code looks good.

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