pub type LPCQPAGEPROC = Option<unsafe extern "system" fn(ppage: *mut CQPAGE, hwnd: HWND, umsg: u32, wparam: WPARAM, lparam: LPARAM) -> HRESULT>;

Aliased Type§

enum LPCQPAGEPROC {
    None,
    Some(unsafe extern "system" fn(_: *mut CQPAGE, _: HWND, _: u32, _: WPARAM, _: LPARAM) -> HRESULT),
}

Variants§

§1.0.0

None

No value.

§1.0.0

Some(unsafe extern "system" fn(_: *mut CQPAGE, _: HWND, _: u32, _: WPARAM, _: LPARAM) -> HRESULT)

Some value of type T.