uport.pas

智能交通系统演示delphi源码,适合初学者看的例子

unit uPort;

interface

uses
  SysUtils, Classes, Controls, ExtCtrls;

type
  TPortDirection = (pdLeft, pdRight, pdUp, pdDown);
  TPort = class(TImage)
  private
    { Private declarations }
    FDirection: TPortDirection;
  protected
    { Protected declarations }
  public
    { Public declarations }
  published
    { Published declarations }
    property Direction: TPortDirection read FDirection write FDirection;
  end;

procedure Register;

implementation

procedure Register;
begin
  RegisterComponents('Transport', [TPort]);
end;

end.