如何使用Cocoa/CoreAnimation调暗osx桌面-HowtodimosxdesktopusingCocoa/CoreAnimation

In case you were actually interested in doing a fade-out or fade-in of the whole screen, here is a link describing how to do that.

如果你真的对整个屏幕的淡出或淡入感兴趣,这里有一个链接描述如何做到这一点。

The linked document contains examples for how to fade all displays (or a single display) to black (you can change the color), capture the display (where you can display what you'd like), and then fade back. This uses CGAcquireDisplayFadeReservation() mentioned in the comment to my other answer.

链接文档包含如何将所有显示(或单个显示)淡化为黑色(您可以更改颜色),捕获显示(您可以显示您想要的内容),然后淡出的示例。这使用评论中提到的CGAcquireDisplayFadeReservation()作为我的另一个答案。

Is this more like what you were looking for?

这更像你在寻找什么?

Create a semi-transparent full-screen view behind your main window.

在主窗口后面创建一个半透明的全屏视图。