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Added support for IsColorPrevalence background system accent color

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This commit is contained in:
Daniel Clark
2021-02-08 23:20:06 +00:00
parent ec847fd6a5
commit e1b3b1e6c9
5 changed files with 94 additions and 40 deletions
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NotificationFlyout.Wpf.UI/Helpers/SystemPersonalisationHelper.cs
+24 -16
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@@ -1,4 +1,5 @@
using NotificationFlyout.Wpf.UI.Extensions;
using Microsoft.Win32;
using NotificationFlyout.Wpf.UI.Extensions;
using System;
using System.Runtime.InteropServices;
using System.Windows;
@@ -10,22 +11,23 @@ namespace NotificationFlyout.Wpf.UI.Helpers
public class SystemPersonalisationHelper
{
private readonly UISettings _settings = new();
private readonly string PersonalizeKey = @"Software\Microsoft\Windows\CurrentVersion\Themes\Personalize";
private SystemTheme _currentTheme;
private bool _isColorPrevalence;
private SystemPersonalisationHelper(Window window)
{
var source = HwndSource.FromHwnd(window.GetHandle());
source.AddHook(new HwndSourceHook(WndProc));
_settings.ColorValuesChanged += OnColorValuesChanged;
_currentTheme = GetSystemTheme();
_currentTheme = GetTheme();
_isColorPrevalence = GetIsColorPrevalence();
}
public event EventHandler<ThemeChangedEventArgs> ThemeChanged;
public event EventHandler<SystemPersonalisationChangedEventArgs> ThemeChanged;
public SystemTheme SystemTheme => GetSystemTheme();
public bool IsColorPrevalence => GetIsColorPrevalence();
public SystemTheme Theme => GetTheme();
public static SystemPersonalisationHelper Create(Window window)
{
@@ -35,24 +37,30 @@ namespace NotificationFlyout.Wpf.UI.Helpers
[DllImport("user32.dll", SetLastError = true)]
private static extern IntPtr DefWindowProcW(IntPtr handle, uint msg, IntPtr wParam, IntPtr lParam);
private SystemTheme GetSystemTheme()
private bool GetIsColorPrevalence()
{
using var baseKey = RegistryKey.OpenBaseKey(RegistryHive.CurrentUser, RegistryView.Registry64);
using var subKey = baseKey.OpenSubKey(PersonalizeKey);
return subKey.GetValue<int>("ColorPrevalence", 0) > 0;
}
private SystemTheme GetTheme()
{
var color = _settings.GetColorValue(UIColorType.Background).ToString();
return color == "#FFFFFFFF" ? SystemTheme.Light : SystemTheme.Dark;
}
private void OnColorValuesChanged(UISettings sender, object args)
{
RaiseThemeChangedEvent();
}
private void RaiseThemeChangedEvent()
{
var theme = GetSystemTheme();
if (theme != _currentTheme)
var theme = GetTheme();
var isColorPrevalence = GetIsColorPrevalence();
if (theme != _currentTheme || _isColorPrevalence != isColorPrevalence)
{
ThemeChanged?.Invoke(this, new ThemeChangedEventArgs(theme));
_currentTheme = theme;
_isColorPrevalence = isColorPrevalence;
ThemeChanged?.Invoke(this, new SystemPersonalisationChangedEventArgs(theme, isColorPrevalence));
}
}