Type Alias CVDisplayLinkOutputCallback 

pub type CVDisplayLinkOutputCallback = Option<unsafe extern "C" fn(displayLink: CVDisplayLinkRef, inNow: *const CVTimeStamp, inOutputTime: *const CVTimeStamp, flagsIn: CVOptionFlags, flagsOut: *mut CVOptionFlags, displayLinkContext: *mut c_void) -> CVReturn>;

Aliased Type

pub enum CVDisplayLinkOutputCallback {
    None,
    Some(unsafe extern "C" fn(*mut __CVDisplayLink, *const CVTimeStamp, *const CVTimeStamp, u64, *mut u64, *mut c_void) -> i32),
}

Variants

None

No value.

Some(unsafe extern "C" fn(*mut __CVDisplayLink, *const CVTimeStamp, *const CVTimeStamp, u64, *mut u64, *mut c_void) -> i32)

Some value of type T.