Type Alias CAPVIDEOCALLBACK 

pub type CAPVIDEOCALLBACK = Option<unsafe extern "system" fn(hwnd: HWND, lpvhdr: *const VIDEOHDR) -> LRESULT>;

Aliased Type

pub enum CAPVIDEOCALLBACK {
    None,
    Some(unsafe extern "system" fn(HWND, *const VIDEOHDR) -> LRESULT),
}

Variants

None

No value.

Some(unsafe extern "system" fn(HWND, *const VIDEOHDR) -> LRESULT)

Some value of type T.