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Duplicate the Windows RoundRect Function as a Cubic Bezier Curve

Last Modified: 2013-11-22
I am trying to duplicate Windows' RoundRect function as a series of lines connected by Cubic Bezier Curves to draw to a PDF file.  All the samples I have seen create a perfect quarter circle for each corner of the rectangle.  I need to be able to specify the width and height of the corner.  I am doing this in Delphi but I can convert from pretty much any other language so long as I can figure out the algorithm.
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