TPaintBox в буфер обмена

var
pbRect: TRect;
begin
pbRect := Rect(0, 0, PaintBox1.Width, PaintBox1.Height);
BitMap := TBitMap.Create;
try
Bitmap.Width := PaintBox1.Width;
Bitmap.Height := PaintBox1.Height;
BitMap.Canvas.CopyRect(pbRect, PaintBox1.Canvas, pbRect);
ClipBoard.Assign(BitMap);
finally
BitMap.Free;
end;
end;