Copy CMYK Values

Yeah sure! Go to the image menu bar then mode then CMYK marge.

What exactly do you mean?

Do you want to copy the information in the form of text or as image data (in which case tmyusf74’s post should have should address the issue)?

You could use a Script:

#target photoshop

var check = app.showColorPicker();

var theColor = "cyan "+app.foregroundColor.cmyk.cyan+"\nmagenta "+app.foregroundColor.cmyk.magenta+"\nyellow "+app.foregroundColor.cmyk.yellow+"\nblack "+app.foregroundColor.cmyk.black;

copyTextToClipboard(theColor);

function copyTextToClipboard( txt ) {

const keyTextData = app.charIDToTypeID('TxtD');

const ktextToClipboardStr = app.stringIDToTypeID( "textToClipboard" );

var textStrDesc = new ActionDescriptor();

textStrDesc.putString( keyTextData, txt );

executeAction( ktextToClipboardStr, textStrDesc, DialogModes.NO );

};

How does this not meet your needs?

Did you save the code to a jsx-file and put it in Photoshop’s Presets/Scripts-Folder?

#target photoshop

var check = app.showColorPicker();

var theColor = "cyan "+Math.round(app.foregroundColor.cmyk.cyan)+"\nmagenta "+Math.round(app.foregroundColor.cmyk.magenta)+"\nyellow "+Math.round(app.foregroundColor.cmyk.yellow)+"\nblack "+Math.round(app.foregroundColor.cmyk.black);

copyTextToClipboard(theColor);

function copyTextToClipboard( txt ) {

const keyTextData = app.charIDToTypeID('TxtD');

const ktextToClipboardStr = app.stringIDToTypeID( "textToClipboard" );

var textStrDesc = new ActionDescriptor();

textStrDesc.putString( keyTextData, txt );

executeAction( ktextToClipboardStr, textStrDesc, DialogModes.NO );

};

Edit:

Adobe should to include that function to the Photoshop.

Photoshop offers considerable customisability through features like Edit Toolbar, Keyboard Shortcuts and Menus, but also Actions, Scripts (for those familiar with JavaScript, VB or AS), html5-Panels (for those with html-knowledge) and plug-ins (for those familiar with C++) so some features, in particular those that would likely benefit only a small number of Photoshop users, which can be attained by any of those means do not seem very likely to be implemented in Photoshop by default.