+#define INIT_WINDOW_CLASS(WC) \
+ (WC).style = CS_HREDRAW | CS_VREDRAW; \
+ (WC).lpfnWndProc = (WNDPROC) w32_wnd_proc; \
+ (WC).cbClsExtra = 0; \
+ (WC).cbWndExtra = WND_EXTRA_BYTES; \
+ (WC).hInstance = hinst; \
+ (WC).hIcon = LoadIcon (hinst, EMACS_CLASS); \
+ (WC).hCursor = w32_load_cursor (IDC_ARROW); \
+ (WC).hbrBackground = NULL; \
+ (WC).lpszMenuName = NULL; \
+