CFMachPortInvalidationCallBack

Type Alias CFMachPortInvalidationCallBack 

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

Aliased Type§

pub enum CFMachPortInvalidationCallBack {
    None,
    Some(unsafe extern "C-unwind" fn(*mut CFMachPort, *mut c_void)),
}

Variants§

§1.0.0

None

No value.

§1.0.0

Some(unsafe extern "C-unwind" fn(*mut CFMachPort, *mut c_void))

Some value of type T.