unit1.pas

来自「Delphi高级界面特效制作百例源代码,这是随书源代码部分,不知可否」· PAS 代码 · 共 42 行

unit Unit1;

interface

uses
  Windows, Messages, SysUtils, Classes, Graphics, Controls, Forms, Dialogs,
  ComCtrls, ExtCtrls, StdCtrls, ToolWin, Menus;

type
  TForm1 = class(TForm)
    procedure FormResize(Sender: TObject);
  private
    { Private declarations }
  public
    { Public declarations }
  end;

var
  Form1: TForm1;

implementation

{$R *.DFM}


procedure TForm1.FormResize(Sender: TObject);
var
   i : Word;
   dy,y : Real;
begin
     dy := clientheight/256;
     y := 0;
     for i := 0 to 255 do
     begin
          canvas.brush.color := $000000FF + i * $10000;
          canvas.fillrect(rect(0,round(y),clientwidth,round(y+dy)));
          y := y + dy;
     end;
end;

end.