DrawInvertedLine

procedure DrawInvertedLine(img: TImage32; const line: TPathD; lineWidth: double; endStyle: TEndStyle; joinStyle: TJoinStyle = jsAuto); overload;

procedure DrawInvertedLine(img: TImage32; const lines: TPathsD; lineWidth: double; endStyle: TEndStyle; joinStyle: TJoinStyle = jsAuto); overload;

Example
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uses Img32, Img32.Fmt.PNG, Img32.vector, Img32.Draw;
...
var
  img: TImage32;
  path: TPathD;
  rec: TRect;
begin
  img := TImage32.Create(256,256);
  rec := img.Bounds;
  rec.Right := rec.Right div 4;
  path := Rectangle(rec);
 
  //draw a multicolored background
  DrawPolygon(img, path, frEvenOdd, clRed32);
  path := OffsetPath(path, rec.Width, 0);
  DrawPolygon(img, path, frEvenOdd, clYellow32);
  path := OffsetPath(path, rec.Width, 0);
  DrawPolygon(img, path, frEvenOdd, clLime32);
  path := OffsetPath(path, rec.Width, 0);
  DrawPolygon(img, path, frEvenOdd, clBlue32);
 
  //draw a color inverted ellipse
  path := Ellipse(RectD(30,30,226,226));
  DrawInvertedLine(img, path, 20, esPolygon);
  img.SaveToFile('inverted.png');
  img.Free;
end;

See Also

TEndStyle, TJoinStyle