How to get a stack from an inactive "ImagePlus" window?

Posted by yeliang on Sep 13, 2006; 8:29am
URL: http://imagej.273.s1.nabble.com/Image-Total-Variation-Calculation-Plug-in-tp3701600p3701602.html

Hi, all
I need to develop a plug-in to get a stack from an inactive
"ImagePlus" window, but the interface "PlugInFilter" only
provides the actived window "ImagePlus imp" parameter.
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public interface PlugInFilter {
        public int setup(String arg, ImagePlus imp);
        public void run(ImageProcessor ip);
...
}
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How can I get a stack from another inactived "ImagePlus" window?
Would anyone help me, please? Thanks.

Yel