espanso/espanso-inject/src/x11

Same approach as evdev, but the lookup logic is:

#include <locale.h> #include <stdio.h> #include <stdlib.h> #include <string.h>

#include <X11/Xlibint.h> #include <X11/Xlib.h> #include <X11/Xutil.h> #include <X11/cursorfont.h> #include <X11/keysymdef.h> #include <X11/keysym.h> #include <X11/extensions/record.h> #include <X11/extensions/XTest.h> #include <X11/XKBlib.h> #include <X11/Xatom.h>

Display *data_disp = NULL;

int main() { data_disp = XOpenDisplay(NULL);

for (int code = 0; code<256; code++) {
    for (int state = 0; state < 256; state++) {
    XKeyEvent event;
event.display     = data_disp;
event.window      = XDefaultRootWindow(data_disp);
event.root        = XDefaultRootWindow(data_disp);
event.subwindow   = None;
event.time        = 0;
event.x           = 1;
event.y           = 1;
event.x_root      = 1;
event.y_root      = 1;
event.same_screen = True;
event.keycode     = code + 8;
event.state       = state;
event.type = KeyPress;

char buffer[10];
int res = XLookupString(&event, buffer, 9, NULL, NULL);

printf("hey %d %d %s\n", code, state, buffer);
}

}

}

This way, we get the state mask associated with a character, and we can pass it directly when injecting a character: https://github.com/federico-terzi/espanso/blob/master/native/liblinuxbridge/fast_xdo.cpp#L37