Utiliser le DragDrop avec l'Explorer

unit Unit1;

interface

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

type
TForm1 = class(TForm)
ListBox1: TListBox;
procedure FormCreate(Sender: TObject);
protected
procedure WMDROPFILES ( var Msg: TMessage); message WM_DROPFILES;

private

{ Private-Deklarationen }

public

{ Public-Deklarationen }

end;

var
Form1: TForm1;

implementation

uses shellapi;

{$R *.DFM}

procedure TForm1.WMDROPFILES ( var Msg: TMessage);
var
i,anzahl,
size : integer;
Dateiname : PChar;

begin
inherited;
anzahl := DragQueryFile(Msg.WParam, $FFFFFFFF, Dateiname, 255);
for i := 0 to (anzahl - 1) do begin
size := DragQueryFile(Msg.WParam, i , nil, 0) + 1;
Dateiname:= StrAlloc(size);
DragQueryFile(Msg.WParam,i , Dateiname, size);
listbox1.items.add(StrPas(Dateiname));
StrDispose(Dateiname);
end;

DragFinish(Msg.WParam);
end;

procedure TForm1.FormCreate(Sender: TObject);
begin
DragAcceptFiles(Form1.Handle, true);
end;
end.