Type Alias windows_sys::Win32::UI::Controls::PFNDAENUMCALLBACKCONST

pub type PFNDAENUMCALLBACKCONST = Option<unsafe extern "system" fn(p: *const c_void, pdata: *const c_void) -> i32>;

Aliased Type

enum PFNDAENUMCALLBACKCONST {
    None,
    Some(unsafe extern "system" fn(_: *const c_void, _: *const c_void) -> i32),
}

Variants

None

No value.

Some(unsafe extern "system" fn(_: *const c_void, _: *const c_void) -> i32)

Some value of type T.