CodeLab v6.9 for Paint.NET 5.0.10 (Updated September 21, 2023)

[BoltBait]

how did you guys learn how to do the scripting??

http://www.boltbait.com/pdn/codelab/help/

[Frostyfrog]

Anyone know how to make the fractals? I just want a fractal example to help me to get started. (only for personal use plugins though)

[Ego Eram Reputo]

Here's a codelab source that might make a great fractal starting point: viewtopic.php?p=109686#p109686

[DW-dev]

I'm using CodeLab with Paint.NET 3.5 Beta 1 on Windows Vista 64-bit.

I am encountering a problem after adding a 'Drop-Down List Box' or a 'Radio Button List'.

When I select 'File | Save as DLL ...' and then click 'Build', I get the following error message:

'PaintDotNet.Utility.ClampToByte(int)' is obsolete: 'Use the ClampToByte() extension method instead' (CS0619).

This also happened with the Paint.NET 3.5 alpha builds.

Does anyone know of a workaround?

[Simon Brown]

Try replacing

Utility.ClampToByte(variable);

with

variable.ClampToByte();

[Rick Brewster]

You can also use Int32Util.ClampToByte(x).

The Utility class is being deprecated. It will still be there for older plugins, but new code should never use it (when possible).

[BoltBait]

If CodeLab is generating that code, I'll fix it later... before Paint.NET 3.5 is officially released.

[DW-dev]

Yes, it is CodeLab that is generating the code that causes the error:

'PaintDotNet.Utility.ClampToByte(int)' is obsolete: 'Use the ClampToByte() extension method instead' (CS0619).

[BoltBait]

OK, well in the mean time, just use Paint.NET 3.36 for plugin development.

[Boude]

Are there any plans for creating an intellisense-like menu for codelab?

[BoltBait]

Are there any plans for creating an intellisense-like menu for codelab?

I have no plans for it myself. But, 2 different people have approached me about adding it. Neither has caughed up any code though. So, if you want to tackle it... Go for it!

Download the source code from my site. If you get something working, send it to me and I'll put it into the official build.

[Mike Ryan]

Hey Boltbait, would it be possible for you to add functionality to disable the constant 'running of the effect' while writing the code? It freezes up Paint.NET for about one or two seconds and when you are mid-line of code it can become quite the nuisance. Thanks, and a Merry Christmas!

- Mike

[pyrochild]

Just add a nonsense line somewhere in the code to prevent it from compiling, then remove it when you want to test.

EDIT: I just use a '!'

[Mike Ryan]

Thanks, that works just fine

[halyavin]

Recently a very simple thought stoke me - we can't use different layers in scripting, but we can use different parts of the image with rectangular selection. Here is example of using 3 "layers".

    int w=(selection.Right-selection.Left)/3;
   for (int y = rect.Top; y < rect.Bottom; y++)
   {
       for (int x = rect.Left; x < rect.Right; x++)
       {
           if (x=selection.Left+2*w)
           {
               continue;
           }
           //here we can change only middle part of the image using left and right "layer".
      }
   }
}

For non-rectangular selections offsets of "layers" have to be passed via parameters.

[Simon Brown]

Recently a very simple thought stoke me - we can't use different layers in scripting, but we can use different parts of the image with rectangular selection. Here is example of using 3 "layers".

That's a limitation to Paint.NET's effects API, not CodeLab.

[Arbruteblade]

Hi, I'm a total n00b and I'm having trouble getting a code to work right. Where do I go to ask someone what to do if I'm having trouble with a codelab code?

Also, is there a library of different functions in codelab?

Edit: nvm, most of the functions are in the source code.

[sradforth]

OK, well in the mean time, just use Paint.NET 3.36 for plugin development.

In case it helps, here's a version of the excellent CodeLab plugin that I've updated to work with the latest version of Paint.NET (3.5.2 as of writing)...

I've just updated it to use the Int32Util.ClampToByte method for listboxes and radio boxes so now compiles plugins correctly again.

I.e. line 1337 and 1348 to read....

PropertyPart += "            this.Amount" + x.ToString() + " = Int32Util.ClampToByte((int)newToken.GetProperty(PropertyNames.Amount" + x.ToString() + ").Value);\r\n";

(Also upgraded to .NET 3.5 framework so it could be recompiled)

I have to admit, this CodeLab is fantastic! I'm having so much fun with it!

[BoltBait]

CodeLab has been updated.

Grab your copy here: http://www.boltbait.com/pdn/codelab/

- Added window title customization

- Script comment parsed for default window title:

// Title: Your window title here

- Fixed Radio Button List control type

Your effects can now have customized title bars. Enjoy.

BTW, this new build works with PdN 3.36+

[Boude]

Thank you.

[Arbruteblade]

I'm sorry if this question has already been answered, but,

Can you read RGBA values on other layers? How?

[BoltBait]

I'm sorry if this question has already been answered, but,

Can you read RGBA values on other layers? How?

You can not. It is a limitation of the Paint.NET plugin system that you are limited to reading only pixels on the currently selected layer.

This may be fixed in a future version of Paint.NET, but don't hold your breath waiting for it.

[Sarkut]

Could a plugin use RGBA values on one other layer

if it is pre-loaded to the Windows clipboard?

[Arbruteblade]

Thanks for the quick reply, too bad.

Anyways, that leads to Sarkut's question.

Could a plugin use RGBA values on one other layer

if it is pre-loaded to the Windows clipboard?

I figure that is more likely, but...it all depends on how the program's clipboard is built (because codelab uses an include code for part of the code).

[BoltBait]

Yes. Plugins can access an image on the clipboard.