捕获隐藏的NSWindow [英] capture hidden NSWindow

问题描述

我能够捕获 NSWindow ，这些是使用与 SonOfGrab示例

I'm able to capture NSWindows which are visible using code simular to the SonOfGrab Example

但是如何捕获隐藏的 NSWindow ？或者从用户隐藏 NSWindow 但是仍然出现在de Windowserver中的方法是什么？

But how can I capture a hidden NSWindow? Or what is the way to hide a NSWindow from the user but to still appear in de Windowserver?

谢谢提前！

推荐答案

无法捕获屏幕上看不到的NSWindow的内容。当一个窗口被最小化/隐藏/无论什么时，可视表示被删除以节省内存。

It isn't possible to capture the contents of an NSWindow which isn't visible on-screen. When a window is minimized/hidden/whatever, the visual representation is dropped to save memory.

（不确定如何管理它，如果在你对窗口系统有更深入的了解。我只是从经验中知道这一点，试图用CamTwist和BoinxTV捕捉窗户。）

(Not sure on exactly how this is managed, feel free to chime in if you have a deeper knowledge of the window system. I only know this from experience, trying to capture windows with CamTwist and BoinxTV.)

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