//次のサンプルコードは、フローティングオブジェクトを作成します。
var customFloatingObject = new GC.Spread.Sheets.FloatingObjects.FloatingObject("f1");
customFloatingObject.x(10);
customFloatingObject.y(10);
customFloatingObject.width(60);
customFloatingObject.height(64);
var btn = document.createElement('button');
btn.style.width = "60px";
btn.style.height = "30px";
btn.innerText = "button";
customFloatingObject.content(btn);
activeSheet.floatingObjects.add(customFloatingObject);