我需要获取桌面中显示或隐藏的所有窗口的列表 [英] I need to get the list of all the windows displayed or hidden in the desktop

问题描述

我正在尝试使用 X11 相关库(例如 Xlib 和 Xrandr)编写代码.

I'm trying to code something using X11 related libraries such as Xlib and Xrandr.

一开始我期待全面覆盖真正的基本功能，例如仅从 Xlib 检索显示器的刷新率，后来我发现我需要 Xrandr.

At first I was expecting a full coverage of the real basic functions such as retrieving the refresh rate from the monitors from Xlib alone, later on I find out that I need Xrandr for that.

现在我需要获取桌面中显示或隐藏的所有窗口的列表，我不考虑使用 Gnome/KDE/XFCE ... 扩展，因为我知道那些只是 X11 的装饰器，但我无法真正找到能够枚举 X 服务器中打开的窗口的函数或宏.我还需要获取焦点所在窗口的 ID/名称.

Now I need to get the list of all the windows displayed or hidden in the desktop, I'm not thinking about using Gnome/KDE/XFCE ... extensions because I know that those are just decorators for X11, but I can't really find a function or a macro that is able to enumerate the open windows in the X server. I also need to get the ID/name of the window that is under focus.

我的问题是:只有 Xlib 才能做到这一点?因为从Xlib采用的术语来看，我怀疑这个函数可能存在.

My question is: Xlib alone is capable of doing this ? Because from the terminology that Xlib adopts, I have my doubts that this functions could possibly even exist.

推荐答案

您可以使用 XQueryTree

XQueryTree - query window tree information

Status XQueryTree(Display *display, Window w, Window *root_return, Window *parent_return, Window **children_return, unsigned int *nchildren_return);

因此，要获得完整列表，您必须从根窗口开始，并为每个窗口的所有子窗口递归调用它.

So, to get a complete list, you'll have to start with the root window and recursively call it for all the children of each window.

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