SWT：检测操作系统主题更改

Question

In SWT, I have customized the look of my CTabFolder to match the system colors, in this case using SWT.COLOR_TITLE_BACKGROUND and SWT.COLOR_TITLE_FOREGROUND. The problem is that when the user changes the OS colors (for example by switching from the Windows Classic theme to some other theme), the CTabFolder retains the old colors.

So my question is: Does anybody know how to receive notification when the system colors and/or the OS theme changes? (Regularly polling the system colors is something I'd like to avoid.)

Answer 1

您可以向Display for SWT.Settings添加一个监听器：

display.addListener(SWT.Settings, yourListener);