happyNewYear2024WINAPI.c

#include <stdio.h>
#include <windows.h>
#include <tchar.h>

// Function declarations
LRESULT CALLBACK WndProc(HWND hwnd, UINT message, WPARAM wParam, LPARAM lParam);
int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, int nCmdShow);

int _tmain(int argc, TCHAR* argv[]) {

    _fputts(_T("Bye bye 2023!\n"), stdout);
    HINSTANCE hInstance = GetModuleHandle(NULL);
    return WinMain(hInstance, NULL, GetCommandLine(), SW_SHOWNORMAL);
}


// Entry point
int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, int nCmdShow) {

    // Register the window class
    WNDCLASSEX wc;
    HWND hwnd;
    MSG message;

    wc.cbSize = sizeof(WNDCLASSEX);
    wc.style = 0;
    wc.lpfnWndProc = WndProc;
    wc.cbClsExtra = 0;
    wc.cbWndExtra = 0;
    wc.hInstance = hInstance;
    wc.hIcon = LoadIcon(NULL, IDI_APPLICATION);
    wc.hCursor = LoadCursor(NULL, IDC_ARROW);
    wc.hbrBackground = (HBRUSH)(COLOR_WINDOW + 1);
    wc.lpszMenuName = NULL;
    wc.lpszClassName = _T("HappyNewYear2024");
    wc.hIconSm = LoadIcon(NULL, IDI_APPLICATION);

    if (!RegisterClassEx(&wc)) {
        MessageBox(NULL, _T("Window Registration Failed!"), _T("Error!"), MB_ICONEXCLAMATION | MB_OK);
        return 0;
    }

    // Create the window
    hwnd = CreateWindowEx(
        WS_EX_CLIENTEDGE,
        _T("HappyNewYear2024"),
        _T("Happy New Year 2024"),
        WS_OVERLAPPEDWINDOW,
        CW_USEDEFAULT, CW_USEDEFAULT, 400, 200,
        NULL, NULL, hInstance, NULL);

    if (hwnd == NULL) {
        MessageBox(NULL, _T("Window Creation Failed!"), _T("Error!"), MB_ICONEXCLAMATION | MB_OK);
        return 0;
    }

    ShowWindow(hwnd, nCmdShow);
    UpdateWindow(hwnd);

    // Message loop
    while (GetMessage(&message, NULL, 0, 0) > 0) {
        TranslateMessage(&message);
        DispatchMessage(&message);
    }

    return message.wParam;
}

// Window procedure
LRESULT CALLBACK WndProc(HWND hwnd, UINT message, WPARAM wParam, LPARAM lParam) {
    switch (message) {
    case WM_CLOSE:
        DestroyWindow(hwnd);
        break;
    case WM_DESTROY:
        PostQuitMessage(0);
        break;
    case WM_PAINT: {
        PAINTSTRUCT ps;
        HDC hdc = BeginPaint(hwnd, &ps);
        // Draw the message on the window
        TextOut(hdc, 10, 10, _T("Happy New Year 2024!!!"), 19);
        EndPaint(hwnd, &ps);
        break;
    }
    default:
        return DefWindowProc(hwnd, message, wParam, lParam);
    }
    return 0;
}