pub unsafe fn CM_Get_Class_Property_ExW(
    classguid: *const GUID,
    propertykey: *const DEVPROPKEY,
    propertytype: *mut DEVPROPTYPE,
    propertybuffer: Option<*mut u8>,
    propertybuffersize: *mut u32,
    ulflags: u32,
    hmachine: isize
) -> CONFIGRET