Type Alias CAPCONTROLCALLBACK 

pub type CAPCONTROLCALLBACK = Option<unsafe extern "system" fn(hwnd: HWND, nstate: i32) -> LRESULT>;

Aliased Type

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

Variants

None

No value.

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

Some value of type T.