- (void)
showSamplerWithSelectionHandler: (GSColorSampleHandler)selectionHandler;
Availability: Not in OpenStep/MacOS-X
There was code here to dynamically generate a
magnifying glass cursor with a magnified portion
of the screenshot in it, but changing the cursor rapidly
on X seems to cause flicker, so we just use a plain
magnifying glass. (dynamic code is in r33543)