<HTML><BODY>How to make in Racket FFI struct with bit fields<br>For example, such struct<br><br>struct box_props<br>{<br> unsigned int opaque : 1;<br> unsigned int fill_color : 3;<br> unsigned int : 4; // fill to 8 bits<br> unsigned int show_border : 1;<br> unsigned int border_color : 3;<br> unsigned int border_style : 2;<br> unsigned int : 2; // fill to 16 bits<br>};<br><br>?<br></BODY></HTML>