Compiling and running a simple Win32 C program [closed]

Question

I'm trying to compile and run a simple hello world windows program in C. Though the program runs, it is running in DOS/Console mode, not windows. When I click on the EXE, a console background is opened to run this. Can you say what is wrong with this?

#include <windows.h>

const char g_SzClassName[] = "MyWindowClass";

// Step 4: the Window Procedure
LRESULT CALLBACK WndProc(HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam)
{
    switch(msg)
    {
        case WM_CLOSE:
            DestroyWindow(hwnd);
        break;
        case WM_DESTROY:
            PostQuitMessage(0);
        break;
        default:
            return DefWindowProc(hwnd, msg, wParam, lParam);
    }
    return 0;
}

int APIENTRY WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, int nCmdShow)
{
    WNDCLASSEX wc;
    HWND hwnd;
    MSG msg;

    //Step-1: Register the window class
    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 = g_SzClassName;
    wc.hIconSm = LoadIcon(NULL, IDI_APPLICATION);

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

    //Step-2: Create the window
    hwnd = CreateWindowEx(WS_EX_CLIENTEDGE,g_SzClassName, "The Title of my window", WS_OVERLAPPEDWINDOW, CW_USEDEFAULT,
        CW_USEDEFAULT,240,120,NULL,NULL,hInstance, NULL);

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

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

    //Step-3: The Message Loop
    while(GetMessage(&msg, NULL, 0, 0) >0)
    {
        TranslateMessage(&msg);
        DispatchMessage(&msg);
    }
    return msg.wParam;

    //MessageBox(NULL,"Hello Windows","MyTitle",MB_OK);
    //return 0;
}