87     WNDCLASSEXW window_class;  in lv_windows_platform_init()  local
88     lv_memzero(&window_class, sizeof(WNDCLASSEXW));  in lv_windows_platform_init()
89     window_class.cbSize = sizeof(WNDCLASSEXW);  in lv_windows_platform_init()
90     window_class.style = 0;  in lv_windows_platform_init()
91     window_class.lpfnWndProc = lv_windows_window_message_callback;  in lv_windows_platform_init()
92     window_class.cbClsExtra = 0;  in lv_windows_platform_init()
93     window_class.cbWndExtra = 0;  in lv_windows_platform_init()
94     window_class.hInstance = NULL;  in lv_windows_platform_init()
95     window_class.hIcon = NULL;  in lv_windows_platform_init()
96     window_class.hCursor = LoadCursorW(NULL, (LPCWSTR)IDC_ARROW);  in lv_windows_platform_init()
97     window_class.hbrBackground = (HBRUSH)(COLOR_WINDOW + 1);  in lv_windows_platform_init()
98     window_class.lpszMenuName = NULL;  in lv_windows_platform_init()
99     window_class.lpszClassName = L"LVGL.Window";  in lv_windows_platform_init()
100     window_class.hIconSm = NULL;  in lv_windows_platform_init()
101     LV_ASSERT(RegisterClassExW(&window_class));  in lv_windows_platform_init()