unit1.pas

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

unit Unit1;

interface

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

type
  TForm1 = class(TForm)
    TrackBar1: TTrackBar;
    procedure TrackBar1Change(Sender: TObject);
    procedure FormCreate(Sender: TObject);
    procedure FormResize(Sender: TObject);
    procedure FormPaint(Sender: TObject);
  private
    { Private declarations }
  public
    { Public declarations }
  end;

var
  Form1: TForm1;

implementation

{$R *.DFM}


procedure TForm1.TrackBar1Change(Sender: TObject);
begin
    //最大化时宽度
    Constraints.MaxWidth := TrackBar1.Position;
    if width < Constraints.MaxWidth then
       width := Constraints.MaxWidth;

    //最大化时高度
    Constraints.MaxHeight := TrackBar1.Position;
    if height < Constraints.MaxHeight then
       height := Constraints.MaxHeight;

    //窗口的最小高度
    Constraints.MinHeight := 100;

    //窗口的最小宽度
    Constraints.MinWidth := 200;

    FormResize(self);
end;

procedure TForm1.FormCreate(Sender: TObject);
begin
     //最大化时宽度
    Constraints.MaxWidth := TrackBar1.max;
    //最大化时高度
    Constraints.MaxHeight := TrackBar1.max-100;
end;

procedure TForm1.FormResize(Sender: TObject);
begin
    left := 224;
    top := 119;
    repaint;
end;

procedure TForm1.FormPaint(Sender: TObject);
begin
    left := 224;
    top := 119;
end;

end.