How to get DefaultFillColor and DefaultStrokeColor?

Question

Hi all,I'm trying to fetch the DefaultFillColor and DefaultStrokeColor values back into my code for Adobe Illustrator. I can set these two values just fine by creating a new RGBColor() object and assigning to it, the reverse is proving a lot more difficult.I am using C# as my coding language but I should be able to convert any other codes like JavaScript or VBScript back to C# if you don't know the language, so any help whatsoever or pointers would be helpful.The code attempts I'm working with is along the lines of:
using ai = Illustrator;
ai.ApplicationClass app = new ai.ApplicationClass();

var ColObj = app.ActiveDocument.DefaultFillColor;
Console.WriteLine(ColObj);
//Returns System.__ComObject

var ColObj1 = (ai.RGBColor)app.ActiveDocument.DefaultFillColor;
Console.WriteLine(ColObj1.Red);
//Causes exception: Unable to cast COM object of type 'System.__ComObject' to interface type 'Illustrator.RGBColor'. No such interface supported.
Any advice on how to fetch these values in an RGB format, or even better - the Hex color code would be very much appreciated.

technicaldaniel · Accepted Answer

Okay so I figured it out. What I believe is happening is the COM interface for Adobe Illustrator changes its properties/methods/attributes dynamically based on whether the Document mode of the ActiveDocument is set to RGB or CMYK.

Now because of this, directly querying the object returns a generic object instead, the attributes are actually still there but not accessible by just declaring a variable. Therefore, I needed to declare a dynamic instead.

dynamic ColObj = app.ActiveDocument.DefaultFillColor;

//if i know document is CMYK

var cyan = d.Cyan;
var magenta = d.Magenta;
//etc.

//if i know document is RGB

var red = d.Red;
var green = d.Green;
//etc.

Of course if I don't actually know the document mode and I try and poll the wrong type, it will throw an exception. Therefore I can use a loop such as this:

string colmode;
foreach (PropertyDescriptor descrip in TypeDescriptor.GetProperties(setCol))
{
     if (descrip.Name == "Cyan")
     {
           colmode = "CMYK";
           break;
     }
     else if (descrip.Name == "Red")
     {
           colmode = "RGB";
           break;
     }
}

to work it out by polling the method name of the first item, which will either be Cyan or Red.

C# is weird man..

Silly-V · Answer

How do you debug this C# code with Illustrator?

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