Type Alias windows_sys::Win32::UI::WindowsAndMessaging::HOOKPROC

pub type HOOKPROC = Option<unsafe extern "system" fn(code: i32, wparam: WPARAM, lparam: LPARAM) -> LRESULT>;

Aliased Type

enum HOOKPROC {
    None,
    Some(unsafe extern "system" fn(_: i32, _: usize, _: isize) -> isize),
}

Variants

None

No value.

Some(unsafe extern "system" fn(_: i32, _: usize, _: isize) -> isize)

Some value of type T.