本例效果圖:
unit Unit1;
interface
uses
Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
Dialogs;
type
TForm1 = class(TForm)
procedure FormPaint(Sender: TObject);
end;
var
Form1: TForm1;
implementation
{$R *.dfm}
uses GDIPOBJ, GDIPAPI;
procedure TForm1.FormPaint(Sender: TObject);
const
w = 100;
h = 50;
var
g: TGPGraphics;
p: TGPPen;
x,y: Single;
begin
g := TGPGraphics.Create(Canvas.Handle);
p := TGPPen.Create(0, 2);
g.Clear(MakeColor(255,255,255));
x := 20;
y := 20;
p.SetColor(aclRed);
g.DrawRectangle(p, x, y, w, h);
p.SetColor(aclGold);
x := x + w / 2;
y := y + h /2;
g.DrawRectangle(p, MakeRect(x, y, w, h));
g.Free;
p.Free;
end;
end.
