ddhnoth.pas

来自「Delphi高级开发指南是开发程序的好帮手」· PAS 代码 · 共 52 行

unit DdhNoth;

interface

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

{$R *.DCR}

type
  TDdhNothing = class(TGraphicControl)
  public
    constructor Create (Owner: TComponent); override;
  published
    property Width default 50;
    property Height default 50;
    property Align;
    property ShowHint;
    property Visible;
    property Enabled;
    property OnClick;
    property OnDblClick;
    property OnMouseDown;
    property OnMouseUp;
    property OnMouseMove;
    property OnDragDrop;
    property OnDragOver;
    property OnEndDrag;
    property OnStartDrag;
  end;

procedure Register;

implementation

constructor TDdhNothing.Create (Owner: TComponent);
begin
  // call parent class constructor first
  inherited Create (Owner);
  // set the size
  Width := 50;
  Height := 50;
end;

procedure Register;
begin
  RegisterComponents('DDHB', [TDdhNothing]);
end;

end.