一个很笨的字体勾边的方法

unit Unit1;

interface

uses
Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
Dialogs, StdCtrls, ExtCtrls;

type
TForm1 = class(TForm)
img_1: TImage;
Btn_1: TButton;
Btn_2: TButton;
procedure Btn_1Click(Sender: TObject);
procedure Btn_2Click(Sender: TObject);
private
{ Private declarations }
public
{ Public declarations }
end;

var
Form1: TForm1;

implementation

{$R *.dfm}

procedure TForm1.Btn_1Click(Sender: TObject);
begin
img_1.Canvas.Font.Size :=140;
img_1.Canvas.Font.Name := '华文行楷';
img_1.Canvas.TextOut( 5,5,'罗韵睿');
end;

procedure TForm1.Btn_2Click(Sender: TObject);
procedure SetPointerColor(x,y:Integer);
begin
if img_1.Canvas.Pixels[x,y] <>clBlack then
img_1.Canvas.Pixels[x,y] := clRed;
end;
var
i,j :Integer;
p:Pointer;
begin
for I := 0 to img_1.Width -1 do
for j := 0 to img_1.Height - 1 do begin
if img_1.Canvas.Pixels[i,j] =clBlack then begin
SetPointerColor(i-1,j);
SetPointerColor(i+1,j);
SetPointerColor(i,j-1);
SetPointerColor(i,j+1);
SetPointerColor(i+1,j+1);
SetPointerColor(i-1,j-1);
SetPointerColor(i-1,j+1);
SetPointerColor(i+1,j-1);
end;
end;
end;

end.