Linux在Windows中等同于Window的GetAsyncKeyState? [英] What's the Linux equivalent of Window's GetAsyncKeyState?

问题描述

我正在使用c ++，我需要确定是否按下了Shift键.在Windows中，我只能使用GetAsyncKeyState.如何在Linux中执行此操作? 我无法以root用户身份运行.

I'm using c++, and I need to determine if a shift key is pressed. In windows, I can just use GetAsyncKeyState. How can I do this in Linux? I cannot run as root.

推荐答案

在X Windows下，您可以加载X Keyboard扩展名并调用XkbGetState()以获取当前的键盘状态.如果按下Shift键，则由XkbGetState()设置的XkbStateRec结构的base_mods字段将设置ShiftMask位.此处的完整文档: https://www. x.org/releases/X11R7.7/doc/libX11/XKB/xkblib.html#Determining_Keyboard_State

Under X Windows, you can load the X Keyboard extension and call XkbGetState() to get the current keyboard state. If the shift key is being pressed, the base_mods field of the XkbStateRec structure set by XkbGetState() will have the ShiftMask bit set. Full documentation here: https://www.x.org/releases/X11R7.7/doc/libX11/XKB/xkblib.html#Determining_Keyboard_State

或者: https://stackoverflow.com/a/4225290/4474419

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