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, Buttons, StdCtrls;

type
  TForm1 = class(TForm)
    SpeedButtonSave: TSpeedButton;
    SpeedButtonOpen: TSpeedButton;
    SpeedButtonFont: TSpeedButton;
    SpeedButtonColor: TSpeedButton;
    Memo1: TMemo;
    OpenDialog1: TOpenDialog;
    SaveDialog1: TSaveDialog;
    FontDialog1: TFontDialog;
    ColorDialog1: TColorDialog;
    procedure SpeedButtonSaveClick(Sender: TObject);
    procedure SpeedButtonOpenClick(Sender: TObject);
    procedure SpeedButtonFontClick(Sender: TObject);
    procedure SpeedButtonColorClick(Sender: TObject);
  private
    { Private declarations }
  public
    { Public declarations }
  end;

var
  Form1: TForm1;

implementation
var
  fn:String;             //定义全局变量

{$R *.dfm}

procedure TForm1.SpeedButtonSaveClick(Sender: TObject);
begin
  if SaveDialog1.Execute then
    begin
      fn:=SaveDialog1.FileName;
      Memo1.Lines.SaveToFile(fn); //保存文件
      Form1.Caption:=fn;          //窗体名为文件名
    end;
end;

procedure TForm1.SpeedButtonOpenClick(Sender: TObject);
begin
  if OpenDialog1.Execute then
    begin
      fn:=OpenDialog1.FileName;
      Memo1.Lines.LoadFromFile(fn); //将选择的文件读入到备注框中
      Form1.Caption:=fn;
    end;
end;

procedure TForm1.SpeedButtonFontClick(Sender: TObject);
begin
  if FontDialog1.Execute then
    Memo1.Font:=FontDialog1.Font; //将字体赋值给备注框的字体
end;

procedure TForm1.SpeedButtonColorClick(Sender: TObject);
begin
  if ColorDialog1.Execute then
    Memo1.Font.Color:=ColorDialog1.Color;//将颜色赋值给备注框的文本
end;

end.