文件拖放

Use shellapi;
procedure TForm1.FormCreate(Sender: TObject);
begin
  DragAcceptFiles(form1.Handle,true);
end;

procedure TForm1.TFfile(var Msg:TMessage);
var
  buffer:array[0..1024] of Char;
  mouse:TPoint;
  mouse_in_memo:Boolean;
begin
  GetCursorPos(mouse);
  mouse:=ScreenToClient(mouse);
  if (mouse.Y <= (shape1.Top+shape1.Height))and(mouse.Y >= shape1.Top)and(mouse.x <= (shape1.left+shape1.width))and(mouse.x>= shape1.left) then
    mouse_in_memo:=true
  else
    mouse_in_memo:=false;
  if mouse_in_memo=true then
  begin
    inherited;
    buffer[0]:=#0;
    DragQueryFile(Msg.WParam,0,buffer,sizeof(buffer)); //获取拖入文件名称
    label1.Caption:=PChar(@buffer);//字符数组转换成字符串
    edit1.Text:=PChar(@buffer);
  end;
end;