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Add support for Windows Dark Mode (#1217)

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* Add support for Windows Dark Mode

* Add is_dark_mode() getter to WindowExtWindows

* Add WindowEvent::DarkModeChanged

* Add support for dark mode in Windows 10 builds > 18362

* Change strategy for querying windows 10 build version

* Drop window state before sending event

Co-Authored-By: daxpedda <daxpedda@gmail.com>

* Change implementation of windows dark mode support

* Expand supported range of windows 10 versions with dark mode

* Use get_function! macro where possible

* Minor style fixes

* Improve documentation for ThemeChanged

* Use `as` conversion for `BOOL`

* Correct CHANGELOG entry for dark mode

Co-authored-by: daxpedda <daxpedda@gmail.com>
Co-authored-by: Osspial <osspial@gmail.com>
This commit is contained in:
David Hewitt 2019-12-22 19:04:09 +00:00 • committed by Freya Gentz
parent 25e018d1ce
commit d59eec4633
10 changed files with 287 additions and 2 deletions
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23
src/platform_impl/windows/event_loop.rs
View file

@ -48,6 +48,7 @@ use crate::{
event::{DeviceEvent, Event, Force, KeyboardInput, Touch, TouchPhase, WindowEvent},
event_loop::{ControlFlow, EventLoopClosed, EventLoopWindowTarget as RootELW},
platform_impl::platform::{
dark_mode::try_dark_mode,
dpi::{
become_dpi_aware, dpi_to_scale_factor, enable_non_client_dpi_scaling, hwnd_scale_factor,
},
@ -1540,6 +1541,28 @@ unsafe extern "system" fn public_window_callback<T>(
0
}
winuser::WM_SETTINGCHANGE => {
use crate::event::WindowEvent::ThemeChanged;
let is_dark_mode = try_dark_mode(window);
let mut window_state = subclass_input.window_state.lock();
let changed = window_state.is_dark_mode != is_dark_mode;
if changed {
use crate::window::Theme::*;
let theme = if is_dark_mode { Dark } else { Light };
window_state.is_dark_mode = is_dark_mode;
mem::drop(window_state);
subclass_input.send_event(Event::WindowEvent {
window_id: RootWindowId(WindowId(window)),
event: ThemeChanged(theme),
});
}
commctrl::DefSubclassProc(window, msg, wparam, lparam)
}
_ => {
if msg == *DESTROY_MSG_ID {
winuser::DestroyWindow(window);