Type Alias windows_sys::Win32::Media::Multimedia::CAPCONTROLCALLBACK

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

Aliased Type

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.