Gets the keyboard language in use by the current active window process.

get_keyboard_language.py

import ctypes # Required to obtain the keyboard layout

def get_keyboard_language():
    """
    Gets the keyboard language in use by the current
    active window process.
    """
    # My keyboard is set to the English - United States keyboard
    # For debugging Windows error codes in the current thread
    user32 = ctypes.WinDLL('user32', use_last_error=True)
    curr_window = user32.GetForegroundWindow()
    thread_id = user32.GetWindowThreadProcessId(curr_window, 0)
    # Made up of 0xAAABBBB, AAA = HKL (handle object) & BBBB = language ID
    klid = user32.GetKeyboardLayout(thread_id)
    # print(klid)
    #67699721
    # Language ID -> low 10 bits, Sub-language ID -> high 6 bits
    # Extract language ID from KLID
    lid = klid & (2**16 - 1)
    # Convert language ID from decimal to hexadecimal
    lid_hex = hex(lid)
    print(lid_hex)
    #'0x409' - en
    #'0x419' - ru

get_keyboard_language()