cmake_minimum_required(VERSION 3.1)

project(FooBar)

file(WRITE winmain.cpp [[
	#include <windows.h>

	int WINAPI WinMain(HINSTANCE, HINSTANCE,  LPSTR, int)
	{
		MessageBoxA(NULL, "Hello World", "Title", MB_OK);
	}
]])

add_executable(winmain WIN32 winmain.cpp)

file(WRITE main.cpp [[
	#include <iostream>

	int main()
	{
		std::cout << "Hello World" << std::endl;
	}
]])

add_executable(main main.cpp)