Drag&Drop

[Luckie]

Delphi-Quellcode:

type
  TForm1 = class(TForm)
    Memo1: TMemo;
    procedure FormCreate(Sender: TObject);
  private
    { Private-Deklarationen }
    procedure WMDROPFILE (var msg: TMessage ); Message WM_DropFiles ;
  public
    { Public-Deklarationen }
  end;

var
  Form1: TForm1;

implementation

uses shellapi;

{$R *.dfm}

procedure TForm1.WMDROPFILE(var msg: TMessage);
var
  hDrop : Cardinal ;
  fName : array[0..MAX_PATH] of Char ;
begin
   hDrop := Msg.WParam ;
   fName := '' ;
   DragQueryFile(hDrop, 0, fName, MAX_PATH);
   Memo1.Lines.LoadFromFile(String(fName));
   DragFinish (hDrop);
end;

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