Использование Drag and Drop для заполнения полей в TWebBrowser Delphi

{
This example shows how to fill out fields in your webbrowser by
dragging the content of Label1 to a field of your webbrowser
}

procedure TForm1.FormCreate(Sender: TObject);
begin
label1.DragMode := dmAutomatic;
end;

procedure TForm1.WebBrowserDragOver(Sender, Source: TObject; X,
Y: Integer; State: TDragState; var Accept: Boolean);
var
item: Variant;
begin
//check if document is interactive
if (Webbrowser.ReadyState and READYSTATE_INTERACTIVE) = 3 then
begin
item := WebBrowser.OleObject.Document.elementFromPoint(x, y);
if Source is TLabel then
Accept := True;
Accept := (item.tagname = ‘INPUT’) and ((item.type = ‘text’) or
(item.type = ‘password’)) or (item.tagname = ‘TEXTAREA’);
end;
end;

procedure TForm1.WebBrowserDragDrop(Sender, Source: TObject; X,
Y: Integer);
var
item: Variant;
begin
//check if document is interactive
if (Webbrowser.ReadyState and READYSTATE_INTERACTIVE) = 3 then
begin
item := WebBrowser.OleObject.Document.elementFromPoint(x, y);
item.Value := label1.Caption;
end;
end;