unit1.pas

示范如何做出像IDE一般效果的运行期托动和更改控件大小的代码

unit Unit1;

interface

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

type
  TForm1 = class(TForm)
    Button1: TButton;
    Image1: TImage;
    Image2: TImage;
    Image3: TImage;
    ListBox1: TListBox;
    SpeedButton1: TSpeedButton;
    Panel1: TPanel;
    procedure FormCreate(Sender: TObject);
    procedure Image1MouseDown(Sender: TObject; Button: TMouseButton;
      Shift: TShiftState; X, Y: Integer);
  private
    { Private declarations }
  public
    { Public declarations }
  end;

var
  Form1: TForm1;
  Veraendern: Markierungen;
implementation

{$R *.dfm}

procedure TForm1.FormCreate(Sender: TObject);
begin
//Form1.DoubleBuffered:=true;
end;

procedure TForm1.Image1MouseDown(Sender: TObject; Button: TMouseButton;
  Shift: TShiftState; X, Y: Integer);
begin
  try
  Veraendern.Destroy;
  Veraendern := nil;
  Veraendern := Markierungen.Create(TControl(Sender));
  except
  Veraendern := Markierungen.Create(TControl(Sender));
  end;
end;

end.