Drawing Rectangles

#include "graphapp.h"

void main(void)
{
  rect r = rect(10,10,80,10);

  setcolour(Red);
  drawrect(r);

  setcolour(Blue);
  fillrect(rect(10,40,80,10));
}

• Use rect(x,y,width,height) to specify mathematical rectangles.
• Use drawrect draws outlines of rectangles.
• Use fillrect fills the rectangle with colour.
• Use setcolour to change the drawing colour.
• Source code: drawrect.c