Type Alias windows_sys::Win32::System::WindowsProgramming::WINWATCHNOTIFYPROC

pub type WINWATCHNOTIFYPROC = Option<unsafe extern "system" fn(hww: HWINWATCH, hwnd: HWND, code: u32, lparam: LPARAM)>;

Required features: "Win32_Foundation"

Aliased Type

enum WINWATCHNOTIFYPROC {
    None,
    Some(unsafe extern "system" fn(_: isize, _: isize, _: u32, _: isize)),
}

Variants

None

No value.

Some(unsafe extern "system" fn(_: isize, _: isize, _: u32, _: isize))

Some value of type T.