Type Alias ButtonItemCallback

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

Callback type to call for handling selecting button_panel items

Aliased Type

enum ButtonItemCallback {
    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.