Type Alias CAPSTATUSCALLBACKA 

pub type CAPSTATUSCALLBACKA = Option<unsafe extern "system" fn(hwnd: HWND, nid: i32, lpsz: PCSTR) -> LRESULT>;

Aliased Type

pub enum CAPSTATUSCALLBACKA {
    None,
    Some(unsafe extern "system" fn(*mut c_void, i32, *const u8) -> isize),
}

Variants

None

No value.

Some(unsafe extern "system" fn(*mut c_void, i32, *const u8) -> isize)

Some value of type T.