Display the Illustrator color picker from an extension

Is there a way to dislay Illustrator's color picker from an Illustrator extension?  I don't see a method in the API to do it (there IS a color picker in the Photoshop API), unless I'm just missing it.

In the plugin SDK, the color picker dialog can be displayed from the AIPaintStyleSuite->DisplayColorPicker method, but I don't see a corresponding method in the CSXS libs.