Function igTypingSelectFindNextSingleCharMatch

pub unsafe extern "C" fn igTypingSelectFindNextSingleCharMatch(
    req: *mut ImGuiTypingSelectRequest,
    items_count: i32,
    get_item_name_func: Option<unsafe extern "C" fn(_: *mut c_void, _: i32) -> *const i8>,
    user_data: *mut c_void,
    nav_item_idx: i32,
) -> i32