swich IME (Input Method Editor) to Zh-TW chinese on specific window

inputLockToZhTW.cpp

// [Experiment] swich IME to Traditional Chinese
// $ g++ -m32 -static inputLockToZhTW.cpp && a
// test on League of Legends (TW) client, but got ignored :(
// by aaaddress1@chroot.org
#include <windows.h>
#include <iostream>
int main(void) {
    for (char buf[64]; ; Sleep(150)) {
        GetWindowTextA(GetForegroundWindow(), buf, sizeof(buf));
        // once found that LOL client is on the top, and send IME change requests
        if (strstr(buf, "League of Legends")) SendMessageW(
            GetForegroundWindow(), 
            WM_INPUTLANGCHANGEREQUEST, 
            0, 
            (LPARAM)LoadKeyboardLayoutW(/* zw_tw */ L"00000404", KLF_ACTIVATE)
        );
    }
}