unit1.~pas

本光盘是《Delphi 7应用教程》一书的配套光盘

unit Unit1;

interface

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

type
  TForm1 = class(TForm)
    Button1: TButton;
    procedure Button1Click(Sender: TObject);
  private
    { Private declarations }
  public
    { Public declarations }
  end;

var
  Form1: TForm1;

implementation

{$R *.dfm}

procedure TForm1.Button1Click(Sender: TObject);
  Var
     bitmap:TBitmap;
begin
    With Canvas  do
      begin
          Bitmap:=TBitmap.Create;
          Try
             Bitmap.LoadFromFile('D:\1.BMP');
             Brush.Bitmap :=Bitmap;
             Ellipse(0,0,100,100);
          Finally
             Form1.Canvas.Brush.Bitmap :=nil;
          end;
       end;
     With Canvas do
       begin
         pen.Color :=RGB(0,0,255);
         pen.Width :=5;
         brush.Color :=$00FF0000;
         brush.Style :=bsDiagCross;
         RoundRect(110,10,210,100,0,0);
         brush.Color :=$0000FF00;
         brush.Style :=bsCross;
         RoundRect(210,10,310,100,50,50);
         brush.Color :=$000000FF;
         brush.Style :=bsBDiagonal;
         RoundRect(310,10,410,100,100,100);
       End;

end;

end.