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#![cfg(target_os = "windows")]
use std::os::raw::c_void;
use libc;
use winapi::shared::windef::HWND;
use crate::{
event::DeviceId,
event_loop::EventLoop,
monitor::MonitorHandle,
platform_impl::EventLoop as WindowsEventLoop,
window::{Icon, Window, WindowBuilder},
};
/// Additional methods on `EventLoop` that are specific to Windows.
pub trait EventLoopExtWindows {
/// Creates an event loop off of the main thread.
///
/// # `Window` caveats
///
/// Note that any `Window` created on the new thread will be destroyed when the thread
/// terminates. Attempting to use a `Window` after its parent thread terminates has
/// unspecified, although explicitly not undefined, behavior.
fn new_any_thread() -> Self
where
Self: Sized;
/// By default, winit on Windows will attempt to enable process-wide DPI awareness. If that's
/// undesirable, you can create an `EventLoop` using this function instead.
fn new_dpi_unaware() -> Self
where
Self: Sized;
/// Creates a DPI-unaware event loop off of the main thread.
///
/// The `Window` caveats in [`new_any_thread`](EventLoopExtWindows::new_any_thread) also apply here.
fn new_dpi_unaware_any_thread() -> Self
where
Self: Sized;
}
impl<T> EventLoopExtWindows for EventLoop<T> {
#[inline]
fn new_any_thread() -> Self {
EventLoop {
event_loop: WindowsEventLoop::new_any_thread(),
_marker: ::std::marker::PhantomData,
}
}
#[inline]
fn new_dpi_unaware() -> Self {
EventLoop {
event_loop: WindowsEventLoop::new_dpi_unaware(),
_marker: ::std::marker::PhantomData,
}
}
#[inline]
fn new_dpi_unaware_any_thread() -> Self {
EventLoop {
event_loop: WindowsEventLoop::new_dpi_unaware_any_thread(),
_marker: ::std::marker::PhantomData,
}
}
}
/// Additional methods on `Window` that are specific to Windows.
pub trait WindowExtWindows {
/// Returns the HINSTANCE of the window
fn hinstance(&self) -> *mut libc::c_void;
/// Returns the native handle that is used by this window.
///
/// The pointer will become invalid when the native window was destroyed.
fn hwnd(&self) -> *mut libc::c_void;
/// This sets `ICON_BIG`. A good ceiling here is 256x256.
fn set_taskbar_icon(&self, taskbar_icon: Option<Icon>);
/// Whether the system theme is currently Windows 10's "Dark Mode".
fn is_dark_mode(&self) -> bool;
}
impl WindowExtWindows for Window {
#[inline]
fn hinstance(&self) -> *mut libc::c_void {
self.window.hinstance() as *mut _
}
#[inline]
fn hwnd(&self) -> *mut libc::c_void {
self.window.hwnd() as *mut _
}
#[inline]
fn set_taskbar_icon(&self, taskbar_icon: Option<Icon>) {
self.window.set_taskbar_icon(taskbar_icon)
}
#[inline]
fn is_dark_mode(&self) -> bool {
self.window.is_dark_mode()
}
}
/// Additional methods on `WindowBuilder` that are specific to Windows.
pub trait WindowBuilderExtWindows {
/// Sets a parent to the window to be created.
fn with_parent_window(self, parent: HWND) -> WindowBuilder;
/// This sets `ICON_BIG`. A good ceiling here is 256x256.
fn with_taskbar_icon(self, taskbar_icon: Option<Icon>) -> WindowBuilder;
/// This sets `WS_EX_NOREDIRECTIONBITMAP`.
fn with_no_redirection_bitmap(self, flag: bool) -> WindowBuilder;
}
impl WindowBuilderExtWindows for WindowBuilder {
#[inline]
fn with_parent_window(mut self, parent: HWND) -> WindowBuilder {
self.platform_specific.parent = Some(parent);
self
}
#[inline]
fn with_taskbar_icon(mut self, taskbar_icon: Option<Icon>) -> WindowBuilder {
self.platform_specific.taskbar_icon = taskbar_icon;
self
}
#[inline]
fn with_no_redirection_bitmap(mut self, flag: bool) -> WindowBuilder {
self.platform_specific.no_redirection_bitmap = flag;
self
}
}
/// Additional methods on `MonitorHandle` that are specific to Windows.
pub trait MonitorHandleExtWindows {
/// Returns the name of the monitor adapter specific to the Win32 API.
fn native_id(&self) -> String;
/// Returns the handle of the monitor - `HMONITOR`.
fn hmonitor(&self) -> *mut c_void;
}
impl MonitorHandleExtWindows for MonitorHandle {
#[inline]
fn native_id(&self) -> String {
self.inner.native_identifier()
}
#[inline]
fn hmonitor(&self) -> *mut c_void {
self.inner.hmonitor() as *mut _
}
}
/// Additional methods on `DeviceId` that are specific to Windows.
pub trait DeviceIdExtWindows {
/// Returns an identifier that persistently refers to this specific device.
///
/// Will return `None` if the device is no longer available.
fn persistent_identifier(&self) -> Option<String>;
}
impl DeviceIdExtWindows for DeviceId {
#[inline]
fn persistent_identifier(&self) -> Option<String> {
self.0.persistent_identifier()
}
}