如何在Swing中获取JWindow的父容器? [英] How to get the parent container of a JWindow in Swing?

问题描述

我有一个JFrame，并在初始化时从该帧调用JDialog.在对话框中有一个JButton，单击按钮时将打开一个新的JWindow.

I have one JFrame and calling a JDialog from that frame while initializing. In the dialog have a JButton, when clicking on the button a new JWindow opens.

我可以在主框架中固定窗口的位置吗?如何从JWindow扩展类访问父容器(扩展为JFrame)?

Can I fix the position of window in the main frame? How to access the parent container (JFrame extended) from JWindow extended class?

推荐答案

使用

Use SwingUtilities.getWindowAncestor, if inside the JWindow class, refer it as this, if no, simply put object inside:

JFrame topFrame = (JFrame) SwingUtilities.getWindowAncestor(this);

JFrame topFrame = (JFrame) SwingUtilities.getWindowAncestor(myJWindow);

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