This does only work if NO window skin for the main window is selected.

但这只是工作，如果没有对主窗口的皮肤被选中。

youdao

If no window, especially should pay attention to the details of the door.

如果没有窗，尤其是应注重细节的门。

youdao

(if a window pops up and asks if you want to switch perspective, choose No.)

(如果窗口弹出询问是否切换透视图，请选择No)。

youdao

If it returns NULL, no window of that class is present.

如果返回值为NULL，表明当前没有这个依于这个类的窗口；

youdao

If it returns NULL, no window of that class is present.

如果返回值为NULL，表明当前没有这个依于这个类的窗口；

youdao