Make Window From Console

#define WIN32_LEAN_AND_MEAN
#define WIN32_EXTRA_LEAN
#include <windows.h>
#include <iostream>
using std::cout;

HWND hwnd;
HINSTANCE hinstance;

#pragma comment(linker,"/SUBSYSTEM:CONSOLE")
LRESULT CALLBACK WndProc(HWND hwnd, UINT iMsg, WPARAM wParam, LPARAM lParam);
int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, PSTR szCmdLine, int iCmdShow);

int main(int argc, char** argv) {
  WinMain(GetModuleHandle(NULL), NULL, GetCommandLine(), SW_SHOWDEFAULT);

	return 0;
}

int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, PSTR szCmdLine, int iCmdShow)  {
	hinstance = hInstance;

	WNDCLASS wndclass;
	wndclass.style         = CS_HREDRAW | CS_VREDRAW;
	wndclass.lpfnWndProc   = WndProc;
	wndclass.cbClsExtra    = 0;
	wndclass.cbWndExtra    = 0;
	wndclass.hInstance     = hInstance;
	wndclass.hIcon         = LoadIcon(NULL, IDI_APPLICATION);
	wndclass.hCursor       = LoadCursor(NULL, IDC_ARROW);
	wndclass.hbrBackground = (HBRUSH)(COLOR_BTNFACE + 1);
	wndclass.lpszMenuName  = 0;
	wndclass.lpszClassName = "ssrWin";

	RegisterClass(&wndclass);
	RECT wndRect; SetRect(&wndRect, 0, 0, 600, 400);
	AdjustWindowRect(&wndRect, WS_OVERLAPPEDWINDOW | WS_VISIBLE, false);
	int x  = (GetSystemMetrics(SM_CXSCREEN) / 2) - ((wndRect.right - wndRect.left) / 2);
	int y = (GetSystemMetrics(SM_CYSCREEN) / 2) - ((wndRect.right - wndRect.left) / 2);
	int w = (wndRect.right - wndRect.left); int h = (wndRect.bottom - wndRect.top);
	hwnd = CreateWindow("ssrWin", "ssr Software Renderer", WS_OVERLAPPEDWINDOW | WS_VISIBLE, x, y, w, h, NULL, NULL, hInstance, szCmdLine);

	MSG msg;
	while (GetMessage(&msg, NULL, 0, 0)) {
		TranslateMessage(&msg);
		DispatchMessage(&msg);
	}

	return (int)msg.wParam;
}

LRESULT CALLBACK WndProc(HWND hwnd, UINT iMsg, WPARAM wParam, LPARAM lParam) {
	switch (iMsg)  {
   case WM_CREATE :
	   break;
   case WM_CLOSE :
	   DestroyWindow(hwnd);
	   break;
   case WM_DESTROY :
	   PostQuitMessage(0);
	   break;
	}
	return DefWindowProc(hwnd, iMsg, wParam, lParam);
}