Arguments: stream top-left width height corner-width corner-height
Erases (i.e. replaces with the background color or texture) the rounded box specified by the arguments. Contrast with fill-rounded-box, which draws a filled rounded box on a stream.
Common Graphics and IDE documentation is described in About Common Graphics and IDE documentation in cgide.htm.
The documentation is described in introduction.htm and the index is in index.htm.
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