Type Alias MenuItemCallback 

pub type MenuItemCallback = Option<unsafe extern "C" fn(context: *mut c_void, index: u32)>;

Menu Item Callback

Aliased Type

pub enum MenuItemCallback {
    None,
    Some(unsafe extern "C" fn(*mut c_void, u32)),
}

Variants

None

No value.

Some(unsafe extern "C" fn(*mut c_void, u32))

Some value of type T.