BUILDING NATIVE WINDOWS APPLICATIONS VS2015 COMMUNITY

/*
* This code belongs to Bonafide Ideas blog
* source: http://www.angelhernandezm.com/building-native-windows-applications-with-clion-gcc-and-cygwin/
*
* I just fix some casts and the lambda instruction.
* I'm using Visual Studio 2015 Community
* I was bit curious to see running in VS...
*
*/

#include <windows.h>

HINSTANCE  hInst;
const char g_szClassName[] = "bonafideideasWindowClass";

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

    wc.lpszMenuName = NULL;
    wc.hInstance = hInstance;
    wc.lpszClassName = (LPCWSTR) g_szClassName;
    wc.cbSize = sizeof(WNDCLASSEX);
    wc.cbClsExtra = wc.cbWndExtra = 0;
    wc.style = CS_HREDRAW | CS_VREDRAW;
    wc.hbrBackground = (HBRUSH)(COLOR_WINDOW + 1);
    wc.hCursor = LoadCursor(NULL, IDC_ARROW);
    wc.hIcon = LoadIcon(NULL, IDI_APPLICATION);
    wc.hIconSm = LoadIcon(NULL, IDI_APPLICATION);
    wc.lpfnWndProc = [](HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam) -> LRESULT {
        HDC hdc;
        RECT rect;
        // TEXTMETRIC tm;
        PAINTSTRUCT ps;

        switch (msg) {
        case WM_CLOSE:
            if (MessageBox(NULL, (LPCWSTR)"Are you sure you want to quit?", (LPCWSTR)"Confirmation", MB_ICONQUESTION | MB_YESNO) == IDYES)
                DestroyWindow(hwnd);
            break;

        case WM_DESTROY:
            PostQuitMessage(0);
            break;

        case WM_PAINT:
            hdc = BeginPaint(hwnd, &ps);
            GetClientRect(hwnd, &rect);
            DrawText(hdc, TEXT("Native Windows Development with CygWin and CLion."),
                -1, &rect, DT_SINGLELINE | DT_CENTER | DT_VCENTER);
            EndPaint(hwnd, &ps);
            return 0;

        default:
            return DefWindowProc(hwnd, msg, wParam, lParam);
        }

        return 0;
    };


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

    hwnd = CreateWindowEx(
        WS_EX_CLIENTEDGE,
        (LPCWSTR)g_szClassName,
        (LPCWSTR)"Simplest Windows Native App built with CLion",
        WS_OVERLAPPEDWINDOW,
        CW_USEDEFAULT, CW_USEDEFAULT, 500, 250,
        NULL, NULL, hInstance, NULL);

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

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

    while (GetMessage(&Msg, NULL, 0, 0) > 0) {
        TranslateMessage(&Msg);
        DispatchMessage(&Msg);
    }
    return Msg.wParam;
}