Type Alias core_graphics::data_provider::CGDataProviderGetBytesAtPositionCallback

pub type CGDataProviderGetBytesAtPositionCallback = Option<unsafe extern "C" fn(_: *mut c_void, _: *mut c_void, _: off_t, _: size_t)>;

Aliased Type

enum CGDataProviderGetBytesAtPositionCallback {
    None,
    Some(unsafe extern "C" fn(_: *mut c_void, _: *mut c_void, _: i64, _: usize)),
}

Variants

None

No value.

Some(unsafe extern "C" fn(_: *mut c_void, _: *mut c_void, _: i64, _: usize))

Some value of type T.