Type Alias CMBufferValidationCallback 

pub type CMBufferValidationCallback = Option<unsafe extern "C" fn(queue: CMBufferQueueRef, buf: CMBufferRef, validationRefCon: *mut c_void) -> OSStatus>;

Apple SDK type alias CMBufferValidationCallback.

Aliased Type

pub enum CMBufferValidationCallback {
    None,
    Some(unsafe extern "C" fn(*mut opaqueCMBufferQueue, *const c_void, *mut c_void) -> i32),
}

Variants

None

No value.

Some(unsafe extern "C" fn(*mut opaqueCMBufferQueue, *const c_void, *mut c_void) -> i32)

Some value of type T.