code : pascal
unit Unit1;
interface
uses
  Windows, Messages, SysUtils, Classes,
  Graphics, Controls, Forms, Dialogs, StdCtrls, ComCtrls, ExtCtrls, jpeg,
  OleCtrls, SHDocVw;
type
  TForm1 = class(TForm)
    Image1: TImage;
    ListBox1: TListBox;
    WebBrowser1: TWebBrowser;
    procedure FormCreate(Sender: TObject);
  private
    { Private declarations }
  public
    { Public declarations }
    // mendeklarasikan procedure acceptfiles
    procedure AcceptFiles(var msg: TMessage);
      message WM_DROPFILES;
    end;
var
  Form1: TForm1;
implementation
uses
  // menginclude shellapi ke program
  ShellAPI;
{$R *.DFM}
procedure TForm1.AcceptFiles(var msg: TMessage);
const
  cnMaxFileNameLen = 255;
var
  i,
    nCount: integer;
  acFileName: array[0..cnMaxFileNameLen] of char;
begin
  // menghitung jumlah file yang di drag
  nCount := DragQueryFile(msg.WParam,
    $FFFFFFFF,
    acFileName,
    cnMaxFileNameLen);
  // pengulangan jumlah file yang di blok
  for i := 0 to nCount - 1 do
  begin
    DragQueryFile(msg.WParam, i,
      acFileName, cnMaxFileNameLen);
    // memasukan alamat file yang didrag ke listbox
    ListBox1.Items.Add(acFileName);
  end;
//jika ingin menampilkan gambar gunakan
  //image1.Picture.LoadFromFile(acFileName);
//jika ingin menampilkan web gunakan
  //WebBrowser1.Navigate(acFileName);
  DragFinish(msg.WParam);
end;
procedure TForm1.FormCreate(Sender: TObject);
begin
  // mengijinkan file untuk di drag di form
  DragAcceptFiles(Handle, True);
end;
end.
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