如何使用 XLib 创建映射但不可见的窗口？
我正在一个游戏项目中开发一个基于Linux的I/O验证工具。它是用 C++ 编写的，并且由于使用与我们的游戏相同的 I/O 模块，因此它基于 OIS 1.2。因此，虽然我需要的只是在控制台上打印用户的输入，但我仍然需要为 OIS 创建一个窗口。
所以我的问题来了：如何创建一个映射窗口，同时它仍然不可见并处理键盘事件？
我无法取消映射窗口，因为它不再处理任何键盘事件。我也找不到显示/隐藏窗口的功能。（也许我搜索的方向错误......）
我的小工具现在工作正常，除了有一个愚蠢的顶级空窗口需要集中处理键盘活动...
欢迎任何建议。
谢谢！！！
I'm working on a I/O verification tool based on Linux in a game project. It is written in C++, and,since using the same I/O module as our game, it's based on OIS 1.2. Thus, though all I need is to print users' inputs on the console, I still need to create a window for OIS.
So here comes my question: How can I create a mapped window while it is still invisible and processes keyboard events?
I can't unmapped the window in that it won't process any keyboard event anymore. I also can't find function for show/hide a window.(maybe I search through a wrong diretion...)
My little tool works fine now except there is a stupid top-level empty window which needs to be focused for processing keyboard events...
Any advise is welcomed.
Thanks!!!
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阅读这篇文章后： Linux/X11 输入库，无需创建窗口,
我意识到我的问题是我误解了 X11 的哲学。我需要做的只是将根窗口句柄传递给 OIS，并将 x11_grabkeyboard 标志设置为 true。唯一的缺点是也许我很难用 gdb 调试我的程序，因为键盘被抓住了......
虽然我的情况解决了，但还剩下一件事。
我读过的每一篇文章都说InputOnly窗口不可见并且能够处理输入事件，而我的InputOnly窗口在映射后绝对可见......
也许这是我的Linux，或者又是一个误解......
After reading this post: Linux/X11 input library without creating a window,
I realized my problem was that I misunderstood the philosophy of X11. All I need to do is simply pass the root window handle to OIS, and set the x11_grabkeyboard flag as true. The only drawback is maybe I can hardly debug my program with gdb since the keyboard is grabbed...
Though my situation is solved, there is one thing left.
Every article I read said an InputOnly window won't be visible and is capable for handling input events, while my InputOnly window is absolutely visible after mapped...
Maybe it's my Linux, or again, a misunderstanding...