unit1.pas

delphi做的简单的图片的放大与缩小.

unit Unit1;

interface

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

type
  TForm1 = class(TForm)
    BitBtn1: TBitBtn;
    BitBtn2: TBitBtn;
    Image1: TImage;
    Bevel1: TBevel;
    procedure BitBtn1Click(Sender: TObject);
    procedure BitBtn2Click(Sender: TObject);
  private
    { Private declarations }
  public
    { Public declarations }
  end;

var
  Form1: TForm1;
  x1,x2,y1,y2:integer;
implementation

{$R *.dfm}

procedure TForm1.BitBtn1Click(Sender: TObject);
begin
  if image1.Height>50 then
  begin
    image1.Height:=image1.Height-10;
    image1.Width:=image1.Width-13;
  end;
end;

procedure TForm1.BitBtn2Click(Sender: TObject);
begin
  if image1.Height<370 then
  begin
    image1.Height:=image1.Height+10;
    image1.Width:=image1.Width+13;
  end;
end;

end.