WNDCLASSEX about microwindows HOT 5 OPEN

//wc.cbSize		 = sizeof(WNDCLASSEX);
//wc.hIconSm		 = LoadIcon(NULL, IDI_APPLICATION);
if(!RegisterClassEx(&wc)) -> change to RegisterClass

simple_window.c: In function 'WinMain':
simple_window.c:36:15: warning: implicit declaration of function 'LoadIcon' [-Wimplicit-function-declaration]
  wc.hIcon   = LoadIcon(NULL, IDI_APPLICATION);
               ^~~~~~~~
simple_window.c:36:30: error: 'IDI_APPLICATION' undeclared (first use in this function)
  wc.hIcon   = LoadIcon(NULL, IDI_APPLICATION);
                              ^~~~~~~~~~~~~~~
simple_window.c:36:30: note: each undeclared identifier is reported only once for each function it appears in
simple_window.c:37:17: warning: implicit declaration of function 'LoadCursor' [-Wimplicit-function-declaration]
  wc.hCursor   = LoadCursor(NULL, IDC_ARROW);
                 ^~~~~~~~~~
simple_window.c:37:34: error: 'IDC_ARROW' undeclared (first use in this function)
  wc.hCursor   = LoadCursor(NULL, IDC_ARROW);
                                  ^~~~~~~~~

wc.hCursor   = LoadCursor(NULL, IDC_ARROW);

wc.hCursor   = 0; //LoadCursor(NULL, IDC_ARROW);

    static MWCURSOR arrow = {   /* default arrow cursor*/
        16, 16,
        0,  0,
        RGB(255, 255, 255), RGB(0, 0, 0),
        { 0xe000, 0x9800, 0x8600, 0x4180,
          0x4060, 0x2018, 0x2004, 0x107c,
          0x1020, 0x0910, 0x0988, 0x0544,
          0x0522, 0x0211, 0x000a, 0x0004 },
        { 0xe000, 0xf800, 0xfe00, 0x7f80,
          0x7fe0, 0x3ff8, 0x3ffc, 0x1ffc,
          0x1fe0, 0x0ff0, 0x0ff8, 0x077c,
          0x073e, 0x021f, 0x000e, 0x0004 }
    };