@coty_beier
In Linux, you can programmatically detect the status of the Caps Lock key by reading the state of the relevant keyboard LED. Here's a step-by-step guide on how to achieve this using the C programming language:
The program will output "Caps Lock status: ON" or "Caps Lock status: OFF" based on the Caps Lock key's state.
@coty_beier
Here are the corrected steps to detect the caps lock status in Linux programmatically using the C programming language:
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#include <X11/XKBlib.h> #include <X11/Xlib.h> int isCapsLockOn(Display* display) { XkbStateRec state; XkbGetState(display, XkbUseCoreKbd, &state); return (state.locked_mods & ShiftLockMask); // Check if ShiftLockMask is set } int main() { Display* display = XOpenDisplay(NULL); int capsLockOn = isCapsLockOn(display); printf("Caps Lock status: %s ", capsLockOn ? "ON" : "OFF"); XCloseDisplay(display); return 0; } |
To compile and run the code:
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gcc -o capslock_status capslock_status.c -lX11 -lX11-xkb ./capslock_status |
This code snippet now correctly utilizes the XkbGetState
function from the X Keyboard Extension library (-lX11-xkb
) to query the caps lock state instead of XGetKeyboardControl
.
Ensure that the X11 development libraries are installed on your system to compile and run this code successfully.