ATL 스켈레톤 윈도우

ATL은 Win32api에 C++의 템플릿 인터페이스와 람다를 장착한 wrapper 라이브러리이다.

//main.cpp
#include "Precompiled.h"

typedef LRESULT(*message_callback) (HWND, WPARAM, LPARAM);

struct message_handler 
{
	UINT message;
	message_callback handler;
};

static message_handler s_handler[] =
{
	{
		WM_PAINT, [](HWND window, WPARAM, LPARAM) -> LRESULT
		{
			PAINTSTRUCT ps;
			BeginPaint(window, &ps);

			OutputDebugString(L"PAINT");

			EndPaint(window, &ps);
			return 0;
		}
	},

	{
		WM_DESTROY, [](HWND indow, WPARAM, LPARAM) -> LRESULT
		{
			PostQuitMessage(0);
			return 0;
		}
	}
};

int __stdcall _tWinMain(HINSTANCE module, HINSTANCE, PWSTR, int) {
	
	WNDCLASS wc = {};
	wc.style = CS_HREDRAW | CS_VREDRAW;
	wc.hCursor = LoadCursor(nullptr, IDC_ARROW);
	wc.hInstance = module;
	wc.lpszClassName = L"Window";
	
	wc.lpfnWndProc =
		[](HWND window, UINT message, WPARAM wparam, LPARAM lparam)->LRESULT
	{
		for (auto h = s_handler; h != s_handler + _countof(s_handler); ++h) 
		{
			if (message == h->message) 
			{
				return h->handler(window, wparam, lparam);
			}
		}
		return DefWindowProc(window, message, wparam, lparam);
	};

	RegisterClass(&wc);

	auto hwnd = 
		CreateWindow(wc.lpszClassName, L"Title", WS_OVERLAPPEDWINDOW | WS_VISIBLE,
		CW_USEDEFAULT, CW_USEDEFAULT, CW_USEDEFAULT, CW_USEDEFAULT,
		nullptr, nullptr, module, nullptr);

	MSG message;
	BOOL result;

	while (result = GetMessage(&message, 0, 0, 0)) 
	{
		if (-1 != result) 
		{
			DispatchMessage(&message);
		}
	}

}

//Precompiled.h
#pragma once

#define NOMINMAX

#include <atlbase.h>
#include <atlwin.h>

#pragma warning(disable: 4706)