Createwindow显示宏参数不足

hwnd =CreateWindow(szAppName,
    szName,
    WS_OVERLAPPEDWINDOW,
    CW_USEDEFAULT,
    CW_USEDEFAULT,
    CW_USEDEFAULT.
    CW_USEDEFAULT,
    NULL,
    NULL,
    hInstace,
    NULL);![图片说明](https://img-ask.csdn.net/upload/201606/27/1466997867_751924.png)

w显示宏参数不足 5C
hwnd =CreateWindow(szAppName,
szName,
WS_OVERLAPPEDWINDOW,
CW_USEDEFAULT,
CW_USEDEFAULT,
CW_USEDEFAULT.
CW_USEDEFAULT,
NULL,
NULL,
hInstace,