This is a small go keylogger library for Windows. It has the advantage over all the other keyloggers I found that it correctly parses each keypress, no matter the keyboard layout. No keymaps are hard-coded.
See the examples/ directory for examples.
Currently, the lib polls for keypresses every X milliseconds and checks the entire keyboard using GetAsyncKeyState(), which is not the optimal solution but it works well. Work is going on in the win-events branch to convert the lib to use the Windows events instead of polling.