Type Alias VariableItemChangeCallback 

pub type VariableItemChangeCallback = Option<unsafe extern "C" fn(item: *mut VariableItem)>;

Aliased Type

pub enum VariableItemChangeCallback {
    None,
    Some(unsafe extern "C" fn(*mut VariableItem)),
}

Variants

None

No value.

Some(unsafe extern "C" fn(*mut VariableItem))

Some value of type T.