Trait windows_helpers::Null

pub trait Null {
    const NULL: Self;

    // Required method
    fn is_null(&self) -> bool;
}

For more expressive code and for use with trait bounds.

Required Associated Constants

const NULL: Self

Required Methods

fn is_null(&self) -> bool

Object Safety

This trait is not object safe.

Implementations on Foreign Types

impl Null for HACCEL

const NULL: Self = _

fn is_null(&self) -> bool

impl Null for HANDLE

const NULL: Self = _

fn is_null(&self) -> bool

impl Null for HBITMAP

const NULL: Self = _

fn is_null(&self) -> bool

impl Null for HBRUSH

const NULL: Self = _

fn is_null(&self) -> bool

impl Null for HCURSOR

const NULL: Self = _

fn is_null(&self) -> bool

impl Null for HDC

const NULL: Self = _

fn is_null(&self) -> bool

impl Null for HDEVNOTIFY

const NULL: Self = _

fn is_null(&self) -> bool

impl Null for HDROP

const NULL: Self = _

fn is_null(&self) -> bool

impl Null for HDWP

const NULL: Self = _

fn is_null(&self) -> bool

impl Null for HENHMETAFILE

const NULL: Self = _

fn is_null(&self) -> bool

impl Null for HFONT

const NULL: Self = _

fn is_null(&self) -> bool

impl Null for HGDIOBJ

const NULL: Self = _

fn is_null(&self) -> bool

impl Null for HGLOBAL

const NULL: Self = _

fn is_null(&self) -> bool

impl Null for HHOOK

const NULL: Self = _

fn is_null(&self) -> bool

impl Null for HICON

const NULL: Self = _

fn is_null(&self) -> bool

impl Null for HINSTANCE

const NULL: Self = _

fn is_null(&self) -> bool

impl Null for HLOCAL

const NULL: Self = _

fn is_null(&self) -> bool

impl Null for HMENU

const NULL: Self = _

fn is_null(&self) -> bool

impl Null for HMETAFILE

const NULL: Self = _

fn is_null(&self) -> bool

impl Null for HMODULE

const NULL: Self = _

fn is_null(&self) -> bool

impl Null for HMONITOR

const NULL: Self = _

fn is_null(&self) -> bool

impl Null for HPALETTE

const NULL: Self = _

fn is_null(&self) -> bool

impl Null for HPEN

const NULL: Self = _

fn is_null(&self) -> bool

impl Null for HPOWERNOTIFY

const NULL: Self = _

fn is_null(&self) -> bool

impl Null for HPSXA

const NULL: Self = _

fn is_null(&self) -> bool

impl Null for HRGN

const NULL: Self = _

fn is_null(&self) -> bool

impl Null for HRSRC

const NULL: Self = _

fn is_null(&self) -> bool

impl Null for HWND

const NULL: Self = _

fn is_null(&self) -> bool

impl Null for PCSTR

const NULL: Self = _

fn is_null(&self) -> bool

impl Null for PCWSTR

const NULL: Self = _

fn is_null(&self) -> bool

impl Null for PSID

const NULL: Self = _

fn is_null(&self) -> bool

impl Null for PSTR

const NULL: Self = _

fn is_null(&self) -> bool

impl Null for PWSTR

const NULL: Self = _

fn is_null(&self) -> bool

Implementors