Type Alias CGDataConsumerPutBytesCallback 

pub type CGDataConsumerPutBytesCallback = Option<unsafe extern "C-unwind" fn(*mut c_void, NonNull<c_void>, usize) -> usize>;

Available on crate feature CGDataConsumer only.

Apple’s documentation

Aliased Type

pub enum CGDataConsumerPutBytesCallback {
    None,
    Some(unsafe extern "C-unwind" fn(*mut c_void, NonNull<c_void>, usize) -> usize),
}

Variants

None

No value.

Some(unsafe extern "C-unwind" fn(*mut c_void, NonNull<c_void>, usize) -> usize)

Some value of type T.