winapi_ui_automation::um::winuser

Type Alias WNDPROC

Source 
pub type WNDPROC = Option<unsafe extern "system" fn(HWND, UINT, WPARAM, LPARAM) -> LRESULT>;

Aliased Type§

pub enum WNDPROC {
    None,
    Some(unsafe extern "system" fn(*mut HWND__, u32, usize, isize) -> isize),
}

Variants§

§1.0.0

None

No value.

§1.0.0

Some(unsafe extern "system" fn(*mut HWND__, u32, usize, isize) -> isize)

Some value of type T.