// PostMessage.cpp : This file contains the 'main' function. Program execution begins and ends there.
//

# include <iostream>
# include <Windows.h>
# include <synchapi.h>

int SendADown(int threadId) {
    std::cout << "Send 'a' Down";

    // Copied params from spy++
    WPARAM wParam = 0x41;
    LPARAM lParam = 0x001E0001;

    return PostThreadMessage(threadId, WM_KEYDOWN, wParam, lParam);
}

int SendAUp(int threadId) {
    std::cout << "Send 'a' Up";

    // Copied params from spy++
    WPARAM wParam = 0x41;
    LPARAM lParam = 0xC01E0001;

    return PostThreadMessage(threadId, WM_KEYUP, wParam, lParam);
}

int main()
{
    const int THREAD_ID = 15224;

    SendADown(THREAD_ID);
    Sleep(3000);
    SendAUp(THREAD_ID);
    std::cout << "Hello World!\n";

    return 0;
}