CGDataProviderReleaseDataCallback

Type Alias CGDataProviderReleaseDataCallback 

Source
pub type CGDataProviderReleaseDataCallback = Option<unsafe extern "C-unwind" fn(*mut c_void, NonNull<c_void>, usize)>;
Available on crate feature CGDataProvider only.
Expand description

Aliased Type§

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

Variants§

§1.0.0

None

No value.

§1.0.0

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

Some value of type T.