C#, COM, and Photoshop Channels

Tools Photoshop
1

Hey all,

I’m attempting to write a tool in C# that needs to access a Photoshop document’s channel data. I’m trying to mainpulate the Photoshop.Document.ActiveChannels member. The VBScript Reference says ActiveChannels takes an array of Channel objects, but when I type:

Photoshop.Channel[] currChannels = myDoc.ActiveChannels;

I get an error saying I can’t turn type ‘object’ into type ‘Photoshop.Channels[]’.

Anyone deal with this in the past that can help give me some insight? Any help would be greatly appreciated!

2

appRef.ActiveDocument.ActiveChannels = array(appRef.ActiveDocument.channels(4))

this will set the active channel to channel 4 in vbs.

I hope this helps, sorry the reference is in vbs but I don’t really know any C#. :D:

3

Well, I did manage to ultimately figure something out.

What I’ve done is declare an object and house the current layers in that object. That way, I can switch the channels by loading that variable.

It looks a little something like this:


// stores the current active channels
object currentChannels = myDoc.ActiveChannels;

// gets a stored set of active channels
myDoc.ActiveChannels = currentChannels;

I just make sure that, whenever I make a channel I want to save (like with alphas), I save it on creation.

It’s a bit of a hack, and I’d rather know what data’s actually being passed, but it does work.

4

[QUOTE=Foxious;5857]It’s a bit of a hack, and I’d rather know what data’s actually being passed, but it does work.[/QUOTE]

Can you not use System.Reflection to get that?

5

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