如何使用XCB将按键事件发送到应用程序?
问题描述：
如何使用XCB从另一个程序向某个窗口(当前活动的窗口)发送按键或释放事件?
How can I send a key press or key release event to a window (the currently active window) from another program using XCB?
我发现了一些使用XLib的教程，但是我想使用XCB.
I found some tutorials using XLib, however I would like to use XCB.
我想我将不得不调用xcb_send_event，但是我不知道该如何将其作为参数传递.
I guess I will have to call xcb_send_event, however I have no idea what to pass it as parameters.
答
您应该能够使用XTEST扩展程序，通过xcb_test_fake_input()函数来伪造到活动窗口的输入.
You should be able to use the XTEST extension to fake input to the active window, using the xcb_test_fake_input() function.
#include <xcb/xtest.h>
...
xcb_test_fake_input(c, XCB_KEY_PRESS, keycode, XCB_CURRENT_TIME, XCB_NONE, 0, 0, 0);
xcb_test_fake_input(c, XCB_KEY_RELEASE, keycode, XCB_CURRENT_TIME, XCB_NONE, 0, 0, 0);
请参见 xcb/demos中的xte程序一个可行的例子.
See the xte program in xcb/demos for a working example.