Type Alias ButtonItemCallback 

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

Callback type to call for handling selecting button_panel items

Aliased Type

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

Variants

None

No value.

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

Some value of type T.