Type Alias PTP_CLEANUP_GROUP_CANCEL_CALLBACK

pub type PTP_CLEANUP_GROUP_CANCEL_CALLBACK = Option<unsafe extern "C" fn(arg1: PVOID, arg2: PVOID)>;

Aliased Type

enum PTP_CLEANUP_GROUP_CANCEL_CALLBACK {
    None,
    Some(unsafe extern "C" fn(_: *mut c_void, _: *mut c_void)),
}

Variants

None

No value.

Some(unsafe extern "C" fn(_: *mut c_void, _: *mut c_void))

Some value of type T.