unit1.pas

来自「delphi课程设计的内容,包括源代码,文本的设计,菜单的设计等.」· PAS 代码 · 共 74 行

unit Unit1;

interface

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

type
  TForm1 = class(TForm)
    ListBox1: TListBox;
    ListBox2: TListBox;
    procedure ListBox1MouseDown(Sender: TObject; Button: TMouseButton;
      Shift: TShiftState; X, Y: Integer);
    procedure ListBox2DragOver(Sender, Source: TObject; X, Y: Integer;
      State: TDragState; var Accept: Boolean);
    procedure ListBox2DragDrop(Sender, Source: TObject; X, Y: Integer);
    procedure ListBox2MouseDown(Sender: TObject; Button: TMouseButton;
      Shift: TShiftState; X, Y: Integer);
    procedure ListBox1DragOver(Sender, Source: TObject; X, Y: Integer;
      State: TDragState; var Accept: Boolean);
    procedure ListBox1DragDrop(Sender, Source: TObject; X, Y: Integer);
  private
    { Private declarations }
  public
    { Public declarations }
  end;

var
  Form1: TForm1;

implementation

{$R *.DFM}

procedure TForm1.ListBox1MouseDown(Sender: TObject; Button: TMouseButton;
  Shift: TShiftState; X, Y: Integer);
begin
    if button=mbleft then
       listbox1.BeginDrag(false,5);
end;

procedure TForm1.ListBox2DragOver(Sender, Source: TObject; X, Y: Integer;
  State: TDragState; var Accept: Boolean);
begin
     Accept:=(source=listbox1);
end;

procedure TForm1.ListBox2DragDrop(Sender, Source: TObject; X, Y: Integer);
begin
   listbox2.Items.add(listbox1.items[listbox1.itemindex]);
   listbox1.Items.delete(listbox1.itemindex);
end;

procedure TForm1.ListBox2MouseDown(Sender: TObject; Button: TMouseButton;
  Shift: TShiftState; X, Y: Integer);
begin
   listbox2.BeginDrag(false,5);
end;

procedure TForm1.ListBox1DragOver(Sender, Source: TObject; X, Y: Integer;
  State: TDragState; var Accept: Boolean);
begin
    accept:=(source=listbox2);
end;

procedure TForm1.ListBox1DragDrop(Sender, Source: TObject; X, Y: Integer);
begin
    listbox1.items.add(listbox2.items[listbox2.itemindex]);
    listbox2.items.delete(listbox2.itemindex);
end;

end.